Kriswandani Kriswandani - Academia.edu (original) (raw)

Papers by Kriswandani Kriswandani

Edunesia : Jurnal Ilmiah Pendidikan

This Collaborative Classroom Action Research (PTKK) aims to improve learning outcomes of quadrati... more This Collaborative Classroom Action Research (PTKK) aims to improve learning outcomes of quadratic functions through the NHT (Number Head Together) cooperative learning model assisted by geogebra and flipbooks for class X-5 students of SMA N 3 Salatiga. The subjects of this study were students of class X-5 with a total of 34 students consisting of 11 male students and 23 female students. PTKK consists of two cycles, namely Cycle I and Cycle II, each consisting of four stages: planning, action, observation, and reflection. Data collection techniques in this study used student learning outcomes tests and observations during the learning process in cycles I and II. The research instrument used was a description test consisting of 3 questions for each cycle and learning observations, which consisted of the learning process and students' responses to learning. The data analysis techniques used consisted of two types, namely descriptive qualitative methods and descriptive statistics. ...

Eduma : Mathematics Education Learning and Teaching

Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika

This Collaborative Classroom Action Research (CAR) aims to improve learning outcomes in Quadratic... more This Collaborative Classroom Action Research (CAR) aims to improve learning outcomes in Quadratic Function material using the cooperative learning type TGT (Teams, Games, and Tournament) which assisted by GeoGebra and Quizizz for class X students of SMA N 3 Salatiga. This CAR is carried out in 2 cycles based on the Kemmis and Taggart Theories which consist of 4 stages namely the planning, implementation, observation, and reflection. The subjects of this study were 34 students of class X SMA N 3 Salatiga. The data collection technique of this research uses observation and tests. The data were analyzed using descriptive and quantitative analysis. The results showed that there was an increase in the average value, in the pre-cycle was 77.7; cycle I was 81.6; and cycle II was 83.4. The percentage of classical completeness also shows an increase, students who have scored above KKM (75) in the pre-cycle was 58.06% (18 students), cycle I was 81.82% (27 students), and cycle II was 87.88%. (...

Euler : Jurnal Ilmiah Matematika, Sains dan Teknologi

E-module is an electronic version of the module that can be used as a learning tool that contains... more E-module is an electronic version of the module that can be used as a learning tool that contains material, methods, constraints, and ways of evaluating that are designed systematically and attractively to achieve the expected competencies. The aim of this research is develop a valid, practical, and effective e-module based on Flip PDF and Canva on the geometry transformation material. This research is an R D research using the ADDIE (Analyze, Design, Development, Implementation, and Evaluation) model. The subjects of this study were 30 students of class IX SMP Negeri 9 Salatiga. Data collection techniques are observation, questionnaires, and tests. Data analysis used descriptive qualitative and quantitative analysis, Paired t-test, and N-Gain Score. The result of this research includes 1) the validation results of the e-module based on Flip PDF and Canva obtained the results of this e-module as valid as shown by the validation score of 86.155 with 90.35% and included in the "v...

Jurnal Karya Pendidikan Matematika

This study aims to describe and examine the refractive thinking process of students with intuitiv... more This study aims to describe and examine the refractive thinking process of students with intuitive cognitive styles in solving complex problems. This research is an exploratory, descriptive study with a qualitative approach. The prospective research subjects were SWCU and UMS Mathematics Education undergraduate students, totaling 239 students consisting of 155 SWCU students and 84 UMS students. The subjects of this study consisted of 2 students with intuitive cognitive styles. The research instruments include the main and supporting instruments, including complex problems, cognitive style questionnaires, and interview grids. This research results from the refractive thinking process of Mathematics Education students with an intuitive cognitive style in solving complex problems, including perplexity, investigation, construct, evaluation and decision. The stages of an investigation, construct, and evaluation is carried out repeatedly and not sequentially (randomly). The perplexity sta...

Department of Mathematics Education, Yogyakarta State University, 2011

Determining the use of mathematical model is very influential on students' study outcomes and act... more Determining the use of mathematical model is very influential on students' study outcomes and activity. In deciding the mathematical model, teacher should consider students' characteristic, the material, and also the students' habits. So far, mathematics teacher of class VIII E SMP Negeri I Banyubiru Kabupaten Semarang tend to use the method of lecture and mechanistic structural because he feel that this is the easiest method for the students to digest. Furthermore, the teacher only uses props on materials that are considered hard. This style of teaching from the teacher has an impact on students. Students tend to be passive when lecture is in process resulting in less student activity and also minimum result on their study. This is proven by their average mark which is 60.51 and the limit to pass is 38.7%. Because of this, reforming mathematic through the concept of cooperative learning by using the technique think-pair-share is needed. This research of type"Penelitian Tindakan Kelas" (PTK) with 3 trialwhereas in trial 1, the average increases to 89,9 and the limit to pass is 96,77% and the student activity is 28,35%; for the second trial, the results are the average of 92,55 with the limit to pass 100% and the student activity is 41,38%; and for the last trial the results are the average of 96,29 with the limit to pass 100% and the student activity is 52,12%.

Reflective thinking is one of the determinants of student success in solving math problems. There... more Reflective thinking is one of the determinants of student success in solving math problems. Therefore reflective thinking needs attention from the teacher. However, most evaluation processes only assess how students do and the end result when solving math problems regardless of why students choose steps to solve the problem. This study aims to determine the profile of students' reflective thinking ability in solving PISA math problems on content quantity. Subjects in this study were six students of grade VIII SMP N 1 Salatiga academic year 2016-2017. Data collection techniques in this study using observation techniques, interviews and documentation. Analysis of the results of written tests and interviews shows that the profile of reflective thinking ability in solving PISA math problems on the content of quantity for each type of process of mathematization are: 1) For formulating situations mathematically, there are four subjects that meet all stages of reflective thinking; 2) f...

This research is a qualitative descriptive research that aims to know know trigonometric scheme o... more This research is a qualitative descriptive research that aims to know know trigonometric scheme on the number and difference of two angles for Student Class XII SMA Kristen 1 Salatiga. The sample of this research is XII SMA Kristen 1 Salatiga consisting of 6 students (1 male and 5 female students). The results of this study indicate that there are nine trigonometric schemes on the number and difference of two angles possessed by students in working on trigonometric questions on the number and difference of two angles, that is scheme outlines the sum and difference of the two angles, scheme of application of the phytagoras formula, the scheme outlines with a special angle, the scheme of coherent multiplication on the tangent function, scheme quadrant method, scheme of use of example, two-tier multiplication schemes, the application scheme of identity formula, and scheme distributive properties multiplication against subtraction.Â

Analysis and synthesis are higher level thinking skills that are fundamental in creative thinking... more Analysis and synthesis are higher level thinking skills that are fundamental in creative thinking. This research is a qualitative method to identify the analytical and synthetic level of thinking of students in solving linear programming problems. Twentythree students from the 2018 class of the Mathematics Education Program of UKSW participated in this study. The data collection instruments of this research were 5 linear program essays categorized into 5 types of problems, which were dismemberments of the whole into its component parts problems, establishment of relationships between the parts of the whole problems, integration by parts problems, solution planning problems, and error finding problem with an explanation of the error reason. This result shows that the level of analytical and synthetic thinking skills of students in the 2018 class of the Mathematics Education Program of UKSW are relatively low. For dismemberments of the whole into its component parts problems and estab...

Abstrak. Pentingnya penggunaan strategi pembelajaran yang membiasakan siswa untuk mengkonstruksi ... more Abstrak. Pentingnya penggunaan strategi pembelajaran yang membiasakan siswa untuk mengkonstruksi sendiri pengetahuan yang dimiliknya guna menunjang kemampuan dalam memecahkan masalah matematika menjadi dasar pemilihan strategi REACT. Penelitian ini bertujuan untuk mengetahui ada atau tidaknya pengaruh strategi REACT terhadap kemampuan pemecahan masalah matematis bagi siswa kelas VIII SMP N 3 Pabelan Kabupaten Semarang. Penelitian ini dilakukan pada materi aljabar. Jenis penelitian yang digunakan adalah Quasi Experimental dengan desain penelitian Only Posttest Group Design. Populasi dalam penelitian ini adalah seluruh siswa kelas VIII SMP N 3 Pabelan Kabupaten Semarang Semester I Tahun Ajaran 2017/2018 yang terdiri dari 4 kelas. Teknik pengambilan sampel dalam penelitian ini menggunakan cluster random sampling dan diperoleh kelas VIII A (20 siswa) sebagai kelas eksperimen dan kelas VIII B (19 siswa) sebagai kelas kontrol. Uji normalitas dilakukan dengan menggunakan Shapiro-wilk, dan ...

JTAM | Jurnal Teori dan Aplikasi Matematika, 2018

Abstrak: Jenis penelitian ini adalah penelitian dan pengembangan (Research and Development) denga... more Abstrak: Jenis penelitian ini adalah penelitian dan pengembangan (Research and Development) dengan tujuan mengembangkan media pembelajaran game edukasi berbasis platform game untuk siswa kelas VII SMP. Penelitan ini menggunakan desain penelitian Borg & Gall yang terdiri dari sepuluh langkah. Teknik pengumpulan data terdiri dari observasi, kuesioner dan tes. Hasil dari penelitian pengembangan ini adalah aplikasi game platform dengan materi aljabar. Dampak dari media pembelajaran game edukasi platform game adalah media pembelajaran berpengaruh terhadap hasil belajar siswa. Hal ini berdasarkan pada uji Mann-Whitney dengan nilai signifikan 0,000<0,05 yang berarti terdapat perbedaan rerata sebelum dan sesudah pemberian media pembelajaran game edukasi berbasis platform game atau terdapat pengaruh game edukasi platform game pada materi aljabar terhadap hasil belajar siswa. Selain itu, nilai N-Gain yang diperoleh adalah 0,49 yang berarti terjadi peningkatan sedang terhadap hasil belaja...

Pendekar : Jurnal Pendidikan Berkarakter, 2018

Abstrak: Jenis penelitian ini adalah penelitian kualitatif yang bertujuan untuk menganalisis ting... more Abstrak: Jenis penelitian ini adalah penelitian kualitatif yang bertujuan untuk menganalisis tingkat kemampuan berpikir kreatif siswa dalam menyelesaikan masalah open-ended pada materi bangun datar bagi siswa kelas VIII SMP Kristen 02 Salatiga. Subjek penelitian ini adalah 3 orang siswa kelas VIII SMP Kristen 02 Salatiga yang memiliki kemampuan matematika tinggi, sedang, dan rendah. Subjek penelitian ini diambil dengan menggunakan teknik purposive sampling. Teknik pengumpulan data berupa tes dan wawancara. Berdasarkan hasil analisis dapat disimpulkan bahwa: 1) Subjek berkemampuan matematika tinggi mencapai tingkat 4 (sangat kreatif) dimana indikator kelancaran, keluwesan dan kebaruan dipenuhi; 2) Subjek berkemampuan matematika sedang mencapai tingkat 3 (kreatif) dimana subjek dapat memenuhi 2 indikator yaitu kelancaran dan keluwesan; 3) Subjek berkampuan matematika rendah mencapai tingkat 2 (cukup kreatif) dimana subjek hanya memenuhi indikator keluwesan. : The type of this researc...

Pendekar : Jurnal Pendidikan Berkarakter, 2018

Abstrak: Penelitian ini adalah penelitian deskriptif kualitatif, yang bertujuan untuk mengetahui ... more Abstrak: Penelitian ini adalah penelitian deskriptif kualitatif, yang bertujuan untuk mengetahui kemampuan pemecahan masalah matematika dalam mengerjakan soal olimpiade SMP bagi siswa kelas IX SMP N 8 Salatiga. Subjek penelitian terdiri dari 4 siswa yang dipilih dengan teknik purposive sampling. Berdasarkan hasil tes dan wawancara diketahui semua subjek tidak memenuhi kelima tahap Krulik & Rudnick pada soal nomor 1. Pada langkah awal tahap membaca dan berfikir (read and think) subjek telah melakukan kesalahan dalam memahami soal/masalah. Sedangkan untuk soal nomor 2 hanya 1 subjek yang tidak mampu melewati tahap kelima pada tahap teori Krulik dan Rudnick yaitu refleksi dan pengembangan (reflect and extend). : This is a qualitative descriptive research. The purpose of this research is to know the ability of mathematics problem solving in doing Junior High Olympics for students of grade IX SMP N 8 Salatiga. The research subjects consist of 4 students selected by purposive sampling t...

Determining the use of mathematical model is very influential on students' study outcomes and act... more Determining the use of mathematical model is very influential on students' study outcomes and activity. In deciding the mathematical model, teacher should consider students' characteristic, the material, and also the students' habits. So far, mathematics teacher of class VIII E SMP Negeri I Banyubiru Kabupaten Semarang tend to use the method of lecture and mechanistic structural because he feel that this is the easiest method for the students to digest. Furthermore, the teacher only uses props on materials that are considered hard. This style of teaching from the teacher has an impact on students. Students tend to be passive when lecture is in process resulting in less student activity and also minimum result on their study. This is proven by their average mark which is 60.51 and the limit to pass is 38.7%. Because of this, reforming mathematic through the concept of cooperative learning by using the technique think-pair-share is needed. This research of type"Penelitian Tindakan Kelas" (PTK) with 3 trialwhereas in trial 1, the average increases to 89,9 and the limit to pass is 96,77% and the student activity is 28,35%; for the second trial, the results are the average of 92,55 with the limit to pass 100% and the student activity is 41,38%; and for the last trial the results are the average of 96,29 with the limit to pass 100% and the student activity is 52,12%.

Learning mathematics in class XI IPA 1 Salatiga Christian Senior High School 1 needs to be improv... more Learning mathematics in class XI IPA 1 Salatiga Christian Senior High School 1 needs to be improved because teachers are still learning that involves using the lecture method and mechanistic approach. Models of learning causes students to be passive in the learning process and do not understand the concept of the material being taught. As a result, many students lack an understanding of mathematical concepts in depth so that the average value achieved was still below the value of KKM is 70 and still below the overall limit of 75%, i.e. 54%. To improve student learning outcomes, improvements are needed learning math is to use the Contextual Learning Teaching approach for developing methods of discussion in learning about the composition of functions. The purpose of this research is to improve student learning outcomes through this method, especially the composition of functions. This type of research is Action Research Class consisting of 2 cycles. The results of Cycle 1 is the average value reached 73.2 and 77.4% achieved a complete limit cycle and the second is the average value reached 81.6 and 93.5% reached the limit to prove that a complete discussion on the method of approach, CTL can Improving student outcomes and activities.

This descriptive qualitative research designed to investigate the ability of adaptive reasoning o... more This descriptive qualitative research designed to investigate the ability of adaptive reasoning on students in major of polyhedron viewed from different teaching and learning styles in each student. The population of this study were 30 students of class VIII C Stella Matutina Junior High School Salatiga. Based on the population selected 13 from 30 students as sample of research by using purposive sampling technique that is student having different learning style and thinking style which will be used to observed different way of adaptive reasoning. Data collection techniques used interview and documentation methods consisting of learning style test, thinking style test, and written test about polyhedron. Data analysis techniques use classification guidelines for learning styles and thinking styles and rubrics assessment of adaptive reasoning. Based on the rubric it is found that students who have visual learning style and supported by abstract thinking style that is VAR / AA and VK /...

Inspiramatika, Jan 5, 2018

Penelitian deskriptif kualitatif ini bertujuan untuk mendeskripsikan lapisan pemahaman konsep mat... more Penelitian deskriptif kualitatif ini bertujuan untuk mendeskripsikan lapisan pemahaman konsep matematika dalam menyelesaikan soal TIMSS bagi siswa kelas VIII SMP Negeri 02 Banyubiru Kabupaten Semarang. Lapisan pemahaman meliputi 8 lapisan, yaitu Primitive Knowing (Pk), Image Making (Im), Image Having (Ih), Property Noticing (Pn), Formalising (F), Observing (O), Structuring (S), dan Inventising (Iv). Subjek dalam penelitian ini diambil dengan teknik Purposive Sampling dan diperoleh 5 siswa kelas VIII di SMP Negeri 02 Banyubiru. Teknik pengambilan data dilakukan dengan menggunakan metode tes dan wawancara. Teknik analisis data meliputi reduksi data, penyajian data, dan penarikan kesimpulan. Berdasarkan hasil penelitian diperoleh 1) untuk menyelesaikan soal TIMSS dengan topik sifat-sifat geometris dari sudut dan bentuk geometri, 80% subjek menggunakan lapisan F, serta 20% subjek lainnya menggunakan lapisan Ih; 2) untuk menyelesaikan soal TIMSS dengan topik kongkruen dan kesebangunan, 60% subjek menggunakan lapisan Iv, 40% subjek lainnya menggunakan lapisan O; 3) untuk menyelesaikan soal TIMSS dengan topik hubungan antara bentuk tiga dimensi dan dua dimensi, 80% subjek menggunakan lapisan Iv, 20% subjek lainnya menggunakan lapisan Pn; 4) untuk menyelesaikan soal TIMSS dengan topik menggunakan rumus pengukuran yang sesuai untuk mencari panjang sisi, keliling, luas, luas permukaan, dan volume, 100% subjek menggunakan lapisan Iv.

Proceedings of the 1st Annual International Conference on Mathematics, Science, and Education (ICoMSE 2017), 2018

This qualitative descriptive research has aim to describe the students' thinking skill profile of... more This qualitative descriptive research has aim to describe the students' thinking skill profile of class VII-C of SMP Negeri 1 Salatiga on the topic of the division of integers based on SOLO Taxonomy. SOLO Taxonomy groups students' thinking skill levels into five levels, i.e., pre-structural, uni-structural, multi-structural, relational and extended abstract. The subjects of this research were selected using purposive sampling technique which we chose five students of class VII of SMP N 1 Salatiga. The data were collected through in-depth interview, observation, and essay test methods. This analysis data uses the triangulation technique. Based on the analysis, the results of this research are 1) to solve the problem of determining the day on the same date with different year, all subjects used the thinking skills up to the relational level; 2) to solve the problem of determining the number of zeros in the division of the same number, all research subjects used the thinking skills up to the uni-structural level; 3) to solve the problem of determining the number of zeros in the division of recurring numbers, 80% of the students used the thinking skills up to multi-structural level and 20% of the students used thinking skills up to the pre-structural level; and 4) to solve the problem of recurring numbers n-times, 20% of the students used the thinking skills up to pre-structural level, 40% of them used the thinking skills up to the relational level, and 40% used the thinking skills up to the multi-structural level.

Proceedings of the 1st Annual International Conference on Mathematics, Science, and Education (ICoMSE 2017), 2018

This qualitative descriptive study aimed to describe the profile of understanding layer of the Co... more This qualitative descriptive study aimed to describe the profile of understanding layer of the Conic Section concept toward Mathematics Education Students 2016 of FKIP UKSW. The understanding layer includes eight layers, Primitive Knowing (Pk), Image Making (Im), Image Having (Ih), Property Noticing (Pn), Formalising (F), Observing (O), Structuring (S), and Inventising (Iv). Subjects were taken by purposive sampling technique and obtained 5 Mathematics Education Students 2016 of FKIP UKSW. Data collection techniques include observation, testing, and interview. Data analysis techniques are data reduction, data presentation, and conclusion. Based on the findings, there are some points exposed:1) to solve problem about determining a point on the circle, all subjects using Iv layers; 2) to solve the problem of parabolic equation, 60% of the subjects using Iv layer, and respectively 20% of the subjects using Im and Ih layers; 3) to solve problem of parabol focal point, 60% of the subjects using Im layer, and respectively 20% of the subjects using Iv and Ih layers; 4) to solve problems in the area of Ellipse, 60% of the subjects using Im layer, and respectively 20% of the subjects using Iv and Pn layers; 5) to solve problem of the distance to the center point of the peak, 40% of the subjects using Iv layer, and respectively 20% of the subjects using O, Pk, and F layers; 6) to solve problem of the hyperbolic equation, 20% of the subjects using Pn layer, and respectively 40% of the subjects using Iv and Ih layers; and 7) to solve problem on the hyperbolic asymptote, 60% of the subjects using Im layer, and respectively 20% of the subjects using Iv and Ih layers.

Paedagoria | FKIP UMMat, 2018

Abstrak: Berpikir reflektif merupakan kegiatan yang membuat siswa berusaha menghubungkan pengeta... more Abstrak: Berpikir reflektif merupakan kegiatan yang membuat siswa berusaha menghubungkan pengetahuan yang diperolehnya untuk menyelesaikan permasalahan baru yang berkaitan dengan pengetahuan lamanya. Berpikir reflektif meliputi tiga fase/ tingkat yaitu reacting (berpikir reflektif untuk aksi), comparing (berpikir reflektif untuk evaluasi) dan contemplating (berpikir reflektif untuk inkuiri kritis). Untuk mengetahui tingkat kemampuan berpikir reflektif siswa, maka dilakukan penelitian dengan jenis deskriptif kualitatif. Subjek penelitian ini adalah 3 siswi kelas VIII SMP Kristen 02 Salatiga yang dipilih secara purposive sampling pada materi bangun datar segi empat dengan kemampuan awal yang berbeda. Dari hasil analisis, siswa berkemampuan awal tinggi dapat dikatakan reflektif, kemampuan awal sedang dikatakan cukup reflektif, dan kemampuan awal rendah dikatakan kurang reflektif.: Reflective thinking is an activity that keeps students trying to connect their acquired knowledge to s...

Edunesia : Jurnal Ilmiah Pendidikan

This Collaborative Classroom Action Research (PTKK) aims to improve learning outcomes of quadrati... more This Collaborative Classroom Action Research (PTKK) aims to improve learning outcomes of quadratic functions through the NHT (Number Head Together) cooperative learning model assisted by geogebra and flipbooks for class X-5 students of SMA N 3 Salatiga. The subjects of this study were students of class X-5 with a total of 34 students consisting of 11 male students and 23 female students. PTKK consists of two cycles, namely Cycle I and Cycle II, each consisting of four stages: planning, action, observation, and reflection. Data collection techniques in this study used student learning outcomes tests and observations during the learning process in cycles I and II. The research instrument used was a description test consisting of 3 questions for each cycle and learning observations, which consisted of the learning process and students' responses to learning. The data analysis techniques used consisted of two types, namely descriptive qualitative methods and descriptive statistics. ...

Eduma : Mathematics Education Learning and Teaching

Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika

This Collaborative Classroom Action Research (CAR) aims to improve learning outcomes in Quadratic... more This Collaborative Classroom Action Research (CAR) aims to improve learning outcomes in Quadratic Function material using the cooperative learning type TGT (Teams, Games, and Tournament) which assisted by GeoGebra and Quizizz for class X students of SMA N 3 Salatiga. This CAR is carried out in 2 cycles based on the Kemmis and Taggart Theories which consist of 4 stages namely the planning, implementation, observation, and reflection. The subjects of this study were 34 students of class X SMA N 3 Salatiga. The data collection technique of this research uses observation and tests. The data were analyzed using descriptive and quantitative analysis. The results showed that there was an increase in the average value, in the pre-cycle was 77.7; cycle I was 81.6; and cycle II was 83.4. The percentage of classical completeness also shows an increase, students who have scored above KKM (75) in the pre-cycle was 58.06% (18 students), cycle I was 81.82% (27 students), and cycle II was 87.88%. (...

Euler : Jurnal Ilmiah Matematika, Sains dan Teknologi

E-module is an electronic version of the module that can be used as a learning tool that contains... more E-module is an electronic version of the module that can be used as a learning tool that contains material, methods, constraints, and ways of evaluating that are designed systematically and attractively to achieve the expected competencies. The aim of this research is develop a valid, practical, and effective e-module based on Flip PDF and Canva on the geometry transformation material. This research is an R D research using the ADDIE (Analyze, Design, Development, Implementation, and Evaluation) model. The subjects of this study were 30 students of class IX SMP Negeri 9 Salatiga. Data collection techniques are observation, questionnaires, and tests. Data analysis used descriptive qualitative and quantitative analysis, Paired t-test, and N-Gain Score. The result of this research includes 1) the validation results of the e-module based on Flip PDF and Canva obtained the results of this e-module as valid as shown by the validation score of 86.155 with 90.35% and included in the "v...

Jurnal Karya Pendidikan Matematika

This study aims to describe and examine the refractive thinking process of students with intuitiv... more This study aims to describe and examine the refractive thinking process of students with intuitive cognitive styles in solving complex problems. This research is an exploratory, descriptive study with a qualitative approach. The prospective research subjects were SWCU and UMS Mathematics Education undergraduate students, totaling 239 students consisting of 155 SWCU students and 84 UMS students. The subjects of this study consisted of 2 students with intuitive cognitive styles. The research instruments include the main and supporting instruments, including complex problems, cognitive style questionnaires, and interview grids. This research results from the refractive thinking process of Mathematics Education students with an intuitive cognitive style in solving complex problems, including perplexity, investigation, construct, evaluation and decision. The stages of an investigation, construct, and evaluation is carried out repeatedly and not sequentially (randomly). The perplexity sta...

Department of Mathematics Education, Yogyakarta State University, 2011

Determining the use of mathematical model is very influential on students' study outcomes and act... more Determining the use of mathematical model is very influential on students' study outcomes and activity. In deciding the mathematical model, teacher should consider students' characteristic, the material, and also the students' habits. So far, mathematics teacher of class VIII E SMP Negeri I Banyubiru Kabupaten Semarang tend to use the method of lecture and mechanistic structural because he feel that this is the easiest method for the students to digest. Furthermore, the teacher only uses props on materials that are considered hard. This style of teaching from the teacher has an impact on students. Students tend to be passive when lecture is in process resulting in less student activity and also minimum result on their study. This is proven by their average mark which is 60.51 and the limit to pass is 38.7%. Because of this, reforming mathematic through the concept of cooperative learning by using the technique think-pair-share is needed. This research of type"Penelitian Tindakan Kelas" (PTK) with 3 trialwhereas in trial 1, the average increases to 89,9 and the limit to pass is 96,77% and the student activity is 28,35%; for the second trial, the results are the average of 92,55 with the limit to pass 100% and the student activity is 41,38%; and for the last trial the results are the average of 96,29 with the limit to pass 100% and the student activity is 52,12%.

Reflective thinking is one of the determinants of student success in solving math problems. There... more Reflective thinking is one of the determinants of student success in solving math problems. Therefore reflective thinking needs attention from the teacher. However, most evaluation processes only assess how students do and the end result when solving math problems regardless of why students choose steps to solve the problem. This study aims to determine the profile of students' reflective thinking ability in solving PISA math problems on content quantity. Subjects in this study were six students of grade VIII SMP N 1 Salatiga academic year 2016-2017. Data collection techniques in this study using observation techniques, interviews and documentation. Analysis of the results of written tests and interviews shows that the profile of reflective thinking ability in solving PISA math problems on the content of quantity for each type of process of mathematization are: 1) For formulating situations mathematically, there are four subjects that meet all stages of reflective thinking; 2) f...

This research is a qualitative descriptive research that aims to know know trigonometric scheme o... more This research is a qualitative descriptive research that aims to know know trigonometric scheme on the number and difference of two angles for Student Class XII SMA Kristen 1 Salatiga. The sample of this research is XII SMA Kristen 1 Salatiga consisting of 6 students (1 male and 5 female students). The results of this study indicate that there are nine trigonometric schemes on the number and difference of two angles possessed by students in working on trigonometric questions on the number and difference of two angles, that is scheme outlines the sum and difference of the two angles, scheme of application of the phytagoras formula, the scheme outlines with a special angle, the scheme of coherent multiplication on the tangent function, scheme quadrant method, scheme of use of example, two-tier multiplication schemes, the application scheme of identity formula, and scheme distributive properties multiplication against subtraction.Â

Analysis and synthesis are higher level thinking skills that are fundamental in creative thinking... more Analysis and synthesis are higher level thinking skills that are fundamental in creative thinking. This research is a qualitative method to identify the analytical and synthetic level of thinking of students in solving linear programming problems. Twentythree students from the 2018 class of the Mathematics Education Program of UKSW participated in this study. The data collection instruments of this research were 5 linear program essays categorized into 5 types of problems, which were dismemberments of the whole into its component parts problems, establishment of relationships between the parts of the whole problems, integration by parts problems, solution planning problems, and error finding problem with an explanation of the error reason. This result shows that the level of analytical and synthetic thinking skills of students in the 2018 class of the Mathematics Education Program of UKSW are relatively low. For dismemberments of the whole into its component parts problems and estab...

Abstrak. Pentingnya penggunaan strategi pembelajaran yang membiasakan siswa untuk mengkonstruksi ... more Abstrak. Pentingnya penggunaan strategi pembelajaran yang membiasakan siswa untuk mengkonstruksi sendiri pengetahuan yang dimiliknya guna menunjang kemampuan dalam memecahkan masalah matematika menjadi dasar pemilihan strategi REACT. Penelitian ini bertujuan untuk mengetahui ada atau tidaknya pengaruh strategi REACT terhadap kemampuan pemecahan masalah matematis bagi siswa kelas VIII SMP N 3 Pabelan Kabupaten Semarang. Penelitian ini dilakukan pada materi aljabar. Jenis penelitian yang digunakan adalah Quasi Experimental dengan desain penelitian Only Posttest Group Design. Populasi dalam penelitian ini adalah seluruh siswa kelas VIII SMP N 3 Pabelan Kabupaten Semarang Semester I Tahun Ajaran 2017/2018 yang terdiri dari 4 kelas. Teknik pengambilan sampel dalam penelitian ini menggunakan cluster random sampling dan diperoleh kelas VIII A (20 siswa) sebagai kelas eksperimen dan kelas VIII B (19 siswa) sebagai kelas kontrol. Uji normalitas dilakukan dengan menggunakan Shapiro-wilk, dan ...

JTAM | Jurnal Teori dan Aplikasi Matematika, 2018

Abstrak: Jenis penelitian ini adalah penelitian dan pengembangan (Research and Development) denga... more Abstrak: Jenis penelitian ini adalah penelitian dan pengembangan (Research and Development) dengan tujuan mengembangkan media pembelajaran game edukasi berbasis platform game untuk siswa kelas VII SMP. Penelitan ini menggunakan desain penelitian Borg & Gall yang terdiri dari sepuluh langkah. Teknik pengumpulan data terdiri dari observasi, kuesioner dan tes. Hasil dari penelitian pengembangan ini adalah aplikasi game platform dengan materi aljabar. Dampak dari media pembelajaran game edukasi platform game adalah media pembelajaran berpengaruh terhadap hasil belajar siswa. Hal ini berdasarkan pada uji Mann-Whitney dengan nilai signifikan 0,000<0,05 yang berarti terdapat perbedaan rerata sebelum dan sesudah pemberian media pembelajaran game edukasi berbasis platform game atau terdapat pengaruh game edukasi platform game pada materi aljabar terhadap hasil belajar siswa. Selain itu, nilai N-Gain yang diperoleh adalah 0,49 yang berarti terjadi peningkatan sedang terhadap hasil belaja...

Pendekar : Jurnal Pendidikan Berkarakter, 2018

Abstrak: Jenis penelitian ini adalah penelitian kualitatif yang bertujuan untuk menganalisis ting... more Abstrak: Jenis penelitian ini adalah penelitian kualitatif yang bertujuan untuk menganalisis tingkat kemampuan berpikir kreatif siswa dalam menyelesaikan masalah open-ended pada materi bangun datar bagi siswa kelas VIII SMP Kristen 02 Salatiga. Subjek penelitian ini adalah 3 orang siswa kelas VIII SMP Kristen 02 Salatiga yang memiliki kemampuan matematika tinggi, sedang, dan rendah. Subjek penelitian ini diambil dengan menggunakan teknik purposive sampling. Teknik pengumpulan data berupa tes dan wawancara. Berdasarkan hasil analisis dapat disimpulkan bahwa: 1) Subjek berkemampuan matematika tinggi mencapai tingkat 4 (sangat kreatif) dimana indikator kelancaran, keluwesan dan kebaruan dipenuhi; 2) Subjek berkemampuan matematika sedang mencapai tingkat 3 (kreatif) dimana subjek dapat memenuhi 2 indikator yaitu kelancaran dan keluwesan; 3) Subjek berkampuan matematika rendah mencapai tingkat 2 (cukup kreatif) dimana subjek hanya memenuhi indikator keluwesan. : The type of this researc...

Pendekar : Jurnal Pendidikan Berkarakter, 2018

Abstrak: Penelitian ini adalah penelitian deskriptif kualitatif, yang bertujuan untuk mengetahui ... more Abstrak: Penelitian ini adalah penelitian deskriptif kualitatif, yang bertujuan untuk mengetahui kemampuan pemecahan masalah matematika dalam mengerjakan soal olimpiade SMP bagi siswa kelas IX SMP N 8 Salatiga. Subjek penelitian terdiri dari 4 siswa yang dipilih dengan teknik purposive sampling. Berdasarkan hasil tes dan wawancara diketahui semua subjek tidak memenuhi kelima tahap Krulik & Rudnick pada soal nomor 1. Pada langkah awal tahap membaca dan berfikir (read and think) subjek telah melakukan kesalahan dalam memahami soal/masalah. Sedangkan untuk soal nomor 2 hanya 1 subjek yang tidak mampu melewati tahap kelima pada tahap teori Krulik dan Rudnick yaitu refleksi dan pengembangan (reflect and extend). : This is a qualitative descriptive research. The purpose of this research is to know the ability of mathematics problem solving in doing Junior High Olympics for students of grade IX SMP N 8 Salatiga. The research subjects consist of 4 students selected by purposive sampling t...

Determining the use of mathematical model is very influential on students' study outcomes and act... more Determining the use of mathematical model is very influential on students' study outcomes and activity. In deciding the mathematical model, teacher should consider students' characteristic, the material, and also the students' habits. So far, mathematics teacher of class VIII E SMP Negeri I Banyubiru Kabupaten Semarang tend to use the method of lecture and mechanistic structural because he feel that this is the easiest method for the students to digest. Furthermore, the teacher only uses props on materials that are considered hard. This style of teaching from the teacher has an impact on students. Students tend to be passive when lecture is in process resulting in less student activity and also minimum result on their study. This is proven by their average mark which is 60.51 and the limit to pass is 38.7%. Because of this, reforming mathematic through the concept of cooperative learning by using the technique think-pair-share is needed. This research of type"Penelitian Tindakan Kelas" (PTK) with 3 trialwhereas in trial 1, the average increases to 89,9 and the limit to pass is 96,77% and the student activity is 28,35%; for the second trial, the results are the average of 92,55 with the limit to pass 100% and the student activity is 41,38%; and for the last trial the results are the average of 96,29 with the limit to pass 100% and the student activity is 52,12%.

Learning mathematics in class XI IPA 1 Salatiga Christian Senior High School 1 needs to be improv... more Learning mathematics in class XI IPA 1 Salatiga Christian Senior High School 1 needs to be improved because teachers are still learning that involves using the lecture method and mechanistic approach. Models of learning causes students to be passive in the learning process and do not understand the concept of the material being taught. As a result, many students lack an understanding of mathematical concepts in depth so that the average value achieved was still below the value of KKM is 70 and still below the overall limit of 75%, i.e. 54%. To improve student learning outcomes, improvements are needed learning math is to use the Contextual Learning Teaching approach for developing methods of discussion in learning about the composition of functions. The purpose of this research is to improve student learning outcomes through this method, especially the composition of functions. This type of research is Action Research Class consisting of 2 cycles. The results of Cycle 1 is the average value reached 73.2 and 77.4% achieved a complete limit cycle and the second is the average value reached 81.6 and 93.5% reached the limit to prove that a complete discussion on the method of approach, CTL can Improving student outcomes and activities.

This descriptive qualitative research designed to investigate the ability of adaptive reasoning o... more This descriptive qualitative research designed to investigate the ability of adaptive reasoning on students in major of polyhedron viewed from different teaching and learning styles in each student. The population of this study were 30 students of class VIII C Stella Matutina Junior High School Salatiga. Based on the population selected 13 from 30 students as sample of research by using purposive sampling technique that is student having different learning style and thinking style which will be used to observed different way of adaptive reasoning. Data collection techniques used interview and documentation methods consisting of learning style test, thinking style test, and written test about polyhedron. Data analysis techniques use classification guidelines for learning styles and thinking styles and rubrics assessment of adaptive reasoning. Based on the rubric it is found that students who have visual learning style and supported by abstract thinking style that is VAR / AA and VK /...

Inspiramatika, Jan 5, 2018

Penelitian deskriptif kualitatif ini bertujuan untuk mendeskripsikan lapisan pemahaman konsep mat... more Penelitian deskriptif kualitatif ini bertujuan untuk mendeskripsikan lapisan pemahaman konsep matematika dalam menyelesaikan soal TIMSS bagi siswa kelas VIII SMP Negeri 02 Banyubiru Kabupaten Semarang. Lapisan pemahaman meliputi 8 lapisan, yaitu Primitive Knowing (Pk), Image Making (Im), Image Having (Ih), Property Noticing (Pn), Formalising (F), Observing (O), Structuring (S), dan Inventising (Iv). Subjek dalam penelitian ini diambil dengan teknik Purposive Sampling dan diperoleh 5 siswa kelas VIII di SMP Negeri 02 Banyubiru. Teknik pengambilan data dilakukan dengan menggunakan metode tes dan wawancara. Teknik analisis data meliputi reduksi data, penyajian data, dan penarikan kesimpulan. Berdasarkan hasil penelitian diperoleh 1) untuk menyelesaikan soal TIMSS dengan topik sifat-sifat geometris dari sudut dan bentuk geometri, 80% subjek menggunakan lapisan F, serta 20% subjek lainnya menggunakan lapisan Ih; 2) untuk menyelesaikan soal TIMSS dengan topik kongkruen dan kesebangunan, 60% subjek menggunakan lapisan Iv, 40% subjek lainnya menggunakan lapisan O; 3) untuk menyelesaikan soal TIMSS dengan topik hubungan antara bentuk tiga dimensi dan dua dimensi, 80% subjek menggunakan lapisan Iv, 20% subjek lainnya menggunakan lapisan Pn; 4) untuk menyelesaikan soal TIMSS dengan topik menggunakan rumus pengukuran yang sesuai untuk mencari panjang sisi, keliling, luas, luas permukaan, dan volume, 100% subjek menggunakan lapisan Iv.

Proceedings of the 1st Annual International Conference on Mathematics, Science, and Education (ICoMSE 2017), 2018

This qualitative descriptive research has aim to describe the students' thinking skill profile of... more This qualitative descriptive research has aim to describe the students' thinking skill profile of class VII-C of SMP Negeri 1 Salatiga on the topic of the division of integers based on SOLO Taxonomy. SOLO Taxonomy groups students' thinking skill levels into five levels, i.e., pre-structural, uni-structural, multi-structural, relational and extended abstract. The subjects of this research were selected using purposive sampling technique which we chose five students of class VII of SMP N 1 Salatiga. The data were collected through in-depth interview, observation, and essay test methods. This analysis data uses the triangulation technique. Based on the analysis, the results of this research are 1) to solve the problem of determining the day on the same date with different year, all subjects used the thinking skills up to the relational level; 2) to solve the problem of determining the number of zeros in the division of the same number, all research subjects used the thinking skills up to the uni-structural level; 3) to solve the problem of determining the number of zeros in the division of recurring numbers, 80% of the students used the thinking skills up to multi-structural level and 20% of the students used thinking skills up to the pre-structural level; and 4) to solve the problem of recurring numbers n-times, 20% of the students used the thinking skills up to pre-structural level, 40% of them used the thinking skills up to the relational level, and 40% used the thinking skills up to the multi-structural level.

Proceedings of the 1st Annual International Conference on Mathematics, Science, and Education (ICoMSE 2017), 2018

This qualitative descriptive study aimed to describe the profile of understanding layer of the Co... more This qualitative descriptive study aimed to describe the profile of understanding layer of the Conic Section concept toward Mathematics Education Students 2016 of FKIP UKSW. The understanding layer includes eight layers, Primitive Knowing (Pk), Image Making (Im), Image Having (Ih), Property Noticing (Pn), Formalising (F), Observing (O), Structuring (S), and Inventising (Iv). Subjects were taken by purposive sampling technique and obtained 5 Mathematics Education Students 2016 of FKIP UKSW. Data collection techniques include observation, testing, and interview. Data analysis techniques are data reduction, data presentation, and conclusion. Based on the findings, there are some points exposed:1) to solve problem about determining a point on the circle, all subjects using Iv layers; 2) to solve the problem of parabolic equation, 60% of the subjects using Iv layer, and respectively 20% of the subjects using Im and Ih layers; 3) to solve problem of parabol focal point, 60% of the subjects using Im layer, and respectively 20% of the subjects using Iv and Ih layers; 4) to solve problems in the area of Ellipse, 60% of the subjects using Im layer, and respectively 20% of the subjects using Iv and Pn layers; 5) to solve problem of the distance to the center point of the peak, 40% of the subjects using Iv layer, and respectively 20% of the subjects using O, Pk, and F layers; 6) to solve problem of the hyperbolic equation, 20% of the subjects using Pn layer, and respectively 40% of the subjects using Iv and Ih layers; and 7) to solve problem on the hyperbolic asymptote, 60% of the subjects using Im layer, and respectively 20% of the subjects using Iv and Ih layers.

Paedagoria | FKIP UMMat, 2018

Abstrak: Berpikir reflektif merupakan kegiatan yang membuat siswa berusaha menghubungkan pengeta... more Abstrak: Berpikir reflektif merupakan kegiatan yang membuat siswa berusaha menghubungkan pengetahuan yang diperolehnya untuk menyelesaikan permasalahan baru yang berkaitan dengan pengetahuan lamanya. Berpikir reflektif meliputi tiga fase/ tingkat yaitu reacting (berpikir reflektif untuk aksi), comparing (berpikir reflektif untuk evaluasi) dan contemplating (berpikir reflektif untuk inkuiri kritis). Untuk mengetahui tingkat kemampuan berpikir reflektif siswa, maka dilakukan penelitian dengan jenis deskriptif kualitatif. Subjek penelitian ini adalah 3 siswi kelas VIII SMP Kristen 02 Salatiga yang dipilih secara purposive sampling pada materi bangun datar segi empat dengan kemampuan awal yang berbeda. Dari hasil analisis, siswa berkemampuan awal tinggi dapat dikatakan reflektif, kemampuan awal sedang dikatakan cukup reflektif, dan kemampuan awal rendah dikatakan kurang reflektif.: Reflective thinking is an activity that keeps students trying to connect their acquired knowledge to s...