JULI AFRIADI - Academia.edu (original) (raw)

Papers by JULI AFRIADI

Research paper thumbnail of Islamic Integrated Mathematics Textbooks for Junior Highstudents

AKSIOMA: Jurnal Program Studi Pendidikan Matematika

Many integrated textbooks between mathematics and another fields such as, music, culture, ling... more Many integrated textbooks between mathematics and another fields such as, music, culture, linguistics, etc. This study developed a valid, practical, and effective Islamic integrated mathematics textbooks for junior high/MTs students grade VII. This study is a developmental research by adopting Plomp model which consists of three phases i.e. preliminary research, prototype stage (developmental or prototyping phase), and assessment phase. The developed textbook has been validated by mathematicians, design experts, and linguists. The research data were collected using observation, interviews, questionnaires and test. Data processing in this study was carried out using quantitative decriptive and qualitative decriptive analysis. The results showed that the Islamic integrated mathematics textbooks for Junior High/MTs students is properly and well developed and applicable as the teaching materials in learning mathematics. The valid criterion is because the textbooks are developed in ac...

Research paper thumbnail of Mathematical Literacy: A Case Study on Padang Students' Mathematical Ability

This study aims to analyze student mathematical literacy ability from the perspective of students... more This study aims to analyze student mathematical literacy ability from the perspective of students' Mathematical Ability. This research is a descriptive study with a qualitative approach. The research subjects were three students of XI IPA 1 MAN 1 Padang with different mathematical abilities: low, medium, and high. Data were collected through documentation, tests, and interviews. The results of the analysis show that students with high abilities can solve routine problems, interpret problems and solve them with formulas, carry out procedures well, can deal with complex situations, use their reasoning in solving problems, can work effectively and interpret different representations and then relate them to the real world. Students with moderate abilities can solve routine problems, interpret problems and solve them with formulas, and carry out procedures properly. Meanwhile, students with low abilities are only able to solve routine questions. Based on these results, it is necessar...

Research paper thumbnail of Pengembangan Desain Pembelajaran Topik Rata-Rata Hitung Berbasis Realistic Mathematics Education (RME) di Kelas IX SMP/MTs

Math Educa Journal

Pleriminary research showed there were problems in arithmetic mean learning at junior high school... more Pleriminary research showed there were problems in arithmetic mean learning at junior high school grade IX . Students were more likely to be introduced by the use of formulas without involving the discovery of the concept itself and separate from the learning experience of students everyday. This research aimed to developing instructional design of mean topics arithmetic mean with Realistic Mathematics Education (RME) approach, for junior high school grade IX. This research that was combined Plomp and model Gravemeijer & Cobb develompment models, which consisted of three phases, there were the preliminary research (preparing for the experiment), a development phase ( prototyping phase/ design experiment) and the assessment phase (retrospective analysis). The subjects were students of grade IX MTsN Salido.This research develops an instructional design of the topic arithmetic mean using realisticmathematics education (RME) approach.The results of the experiment showed contexts teachin...

Research paper thumbnail of Identifikasi Kesalahan dan Miskonsepsi Mahasiswa Calon Guru Matematika Pada Topik SPLDV

Math Educa Journal

This research aims to identify errors and misconceptions of prospective mathematics teacher stude... more This research aims to identify errors and misconceptions of prospective mathematics teacher students in the SPLDV material. This study uses a qualitative research design. Research data was collected from 15 micro teaching students in the sixth semester of UNP Padang, using test questions and interview guidelines The SPLDV test questions prepared include the concept of SPLDV with infinite solutions and SPLDV with exactly one solution. The results of the study indicate that there are a number of errors and misconceptions of the material. Identified student errors are conceptual errors, namely mistakes made by students because they do not understand the SPLDV concept properly. Strategic error, which is an error that occurs because students choose the wrong way to do it. Calculate errors, namely errors in performing mathematical operations. Systematic error, which is an error regarding the wrong selection of extrapolation techniques. The interview results show the causes of misconceptio...

Research paper thumbnail of Islamic Integrated Mathematics Textbooks for Junior Highstudents

AKSIOMA: Jurnal Program Studi Pendidikan Matematika

Many integrated textbooks between mathematics and another fields such as, music, culture, ling... more Many integrated textbooks between mathematics and another fields such as, music, culture, linguistics, etc. This study developed a valid, practical, and effective Islamic integrated mathematics textbooks for junior high/MTs students grade VII. This study is a developmental research by adopting Plomp model which consists of three phases i.e. preliminary research, prototype stage (developmental or prototyping phase), and assessment phase. The developed textbook has been validated by mathematicians, design experts, and linguists. The research data were collected using observation, interviews, questionnaires and test. Data processing in this study was carried out using quantitative decriptive and qualitative decriptive analysis. The results showed that the Islamic integrated mathematics textbooks for Junior High/MTs students is properly and well developed and applicable as the teaching materials in learning mathematics. The valid criterion is because the textbooks are developed in ac...

Research paper thumbnail of Mathematical Literacy: A Case Study on Padang Students' Mathematical Ability

This study aims to analyze student mathematical literacy ability from the perspective of students... more This study aims to analyze student mathematical literacy ability from the perspective of students' Mathematical Ability. This research is a descriptive study with a qualitative approach. The research subjects were three students of XI IPA 1 MAN 1 Padang with different mathematical abilities: low, medium, and high. Data were collected through documentation, tests, and interviews. The results of the analysis show that students with high abilities can solve routine problems, interpret problems and solve them with formulas, carry out procedures well, can deal with complex situations, use their reasoning in solving problems, can work effectively and interpret different representations and then relate them to the real world. Students with moderate abilities can solve routine problems, interpret problems and solve them with formulas, and carry out procedures properly. Meanwhile, students with low abilities are only able to solve routine questions. Based on these results, it is necessar...

Research paper thumbnail of Pengembangan Desain Pembelajaran Topik Rata-Rata Hitung Berbasis Realistic Mathematics Education (RME) di Kelas IX SMP/MTs

Math Educa Journal

Pleriminary research showed there were problems in arithmetic mean learning at junior high school... more Pleriminary research showed there were problems in arithmetic mean learning at junior high school grade IX . Students were more likely to be introduced by the use of formulas without involving the discovery of the concept itself and separate from the learning experience of students everyday. This research aimed to developing instructional design of mean topics arithmetic mean with Realistic Mathematics Education (RME) approach, for junior high school grade IX. This research that was combined Plomp and model Gravemeijer & Cobb develompment models, which consisted of three phases, there were the preliminary research (preparing for the experiment), a development phase ( prototyping phase/ design experiment) and the assessment phase (retrospective analysis). The subjects were students of grade IX MTsN Salido.This research develops an instructional design of the topic arithmetic mean using realisticmathematics education (RME) approach.The results of the experiment showed contexts teachin...

Research paper thumbnail of Identifikasi Kesalahan dan Miskonsepsi Mahasiswa Calon Guru Matematika Pada Topik SPLDV

Math Educa Journal

This research aims to identify errors and misconceptions of prospective mathematics teacher stude... more This research aims to identify errors and misconceptions of prospective mathematics teacher students in the SPLDV material. This study uses a qualitative research design. Research data was collected from 15 micro teaching students in the sixth semester of UNP Padang, using test questions and interview guidelines The SPLDV test questions prepared include the concept of SPLDV with infinite solutions and SPLDV with exactly one solution. The results of the study indicate that there are a number of errors and misconceptions of the material. Identified student errors are conceptual errors, namely mistakes made by students because they do not understand the SPLDV concept properly. Strategic error, which is an error that occurs because students choose the wrong way to do it. Calculate errors, namely errors in performing mathematical operations. Systematic error, which is an error regarding the wrong selection of extrapolation techniques. The interview results show the causes of misconceptio...