How Do Biology Teacher Candidates Know Particulate Movements & Random Nature of Matter and Their Effects to Diffusion | Kogi State University Open Education Resources (OER) (original) (raw)

INTERNATIONAL CONFERENCE ON LEARNING AND TEACHING INCULT 2014 2-3 DECEMBER 2014 Understanding of Diffusion, Osmosis and Particulate Theory of Matter Conceptions Among Pre-Service Biology Teacher

This study was conducted to investigate the understanding of diffusion, osmosis and particulate theory of matter conceptions among pre-service Biology teachers. The respondents were 30 pre-service Biology teachers of a faculty of education, UiTM Shah Alam, Selangor. The Diffusion, Osmosis and Particle Theory (DOPT) Two-Tier Diagnostic Instrument and interview applied for the data collection. The items for the diagnostic test are based on the two-tier, multiple-choice format. The first tier consists of a response question and the second tier consists of possible reasons. Findings from the DOPT two-tier diagnostic instruments highlighted that the respondents' understanding of diffusion and osmosis were satisfactory good as 5 out of the 7 items was over 75% which is within 80%-99%. However the understanding on particulate theory of matter was unsatisfactory as all seven items were less than 75% and does not reached the benchmark set up. Interviews with four respondents provided use...

A cross-age study of student understanding of the concept of diffusion

Journal of Research in Science Teaching, 1991

This study examined 7th-grade life science students, 10th-grade biology students, and college zoology students for understanding of the concept of diffusion. Responses from 100 students from each grade level were randomly selected for data analysis. Each student responded to a test packet consisting of a biographical questionnaire, two Piagetian-like developmental tasks, and a Concept Evaluation Statement (CES). The CESs were used to measure the students' understandings of the concept of diffusion. None of the 300 students across the three grade levels exhibited complete understanding of the diffusion concept. There was no appreciable difference among the grade levels in sound or partial understanding, misconceptions, or "no understanding." An analysis of the misconceptions exhibited by the college sample showed that many of the misconceptions could be traced to a misapplication of scientific terminology. Recent studies in science education have demonstrated that students across the educational sequence hold incomplete or inaccurate understandings of many scientific phenomena (

Investigate Grade 7 Students’ Knowledge Construction About Diffusion and Osmosis

Journal of Physics: Conference Series, 2019

This research aimed to investigate the students’ constructing scientific knowledge about diffusion and osmosis with analogy approach. The subjects were selected by purposive sampling method including 30 Grade 7 students in Yasothonpittayakom School, Muang District, Yasothon Province, Thailand, in second semester of 2014 academic year. Gathering data by semi-structured interviews and open-ended questionnaire. The data analyses were qualitative analytical techniques. The results of study revealed that almost students held the concept of dissolve to mention diffusion and held the concept of the particulate and the movement of particulate. Their explanations of diffusion and osmosis mentioned various phenomena.

A cross- age study of high school students' understanding of diffusion and osmosis

Hacettepe Universitesi Egitim Fakultesi Dergisi-hacettepe University Journal of Education, 1999

The aim of the study is to determinethe misconceptionsof the ninth and eleventh grade college studentsin diffusian and osmasis conceptsby using two- tier diagnostictest, developed by Odom and Barrow (31). The first tier examined content knowledge while the se- cond tier examined understandingof that knowledge. The test consistedof 12 multiplechoice itemsand was ad- ministeredto 108 college students(56 ninthgrade and 52 eleventh grade, respectively). The studentsparticipating in the studyhad completedthe uniton diffusianandosmo- sis. Each item was analyzed to determinestudentunders- tanding of, and identify misconceptionsabout diffusian and osmasis. While eleventh grade studentsselected the desired answer combination in the range of 15.4%- 96.2%, this range was reduced to 8.9% - 85.7% in the ca- se of 9th grade students. Mareaver, 10.8% - 87.5% of 9th and 1.9% -44% of the II th grades had no understan- ding of concepts. The analysis of the resultsrevealed that 9th grade studentshad m...

Conceptual understanding of osmosis and diffusion by Australian first-year biology students

International Journal of Innovation in Science and Mathematics Education

Osmosis and diffusion are essential foundation concepts for first-year biology students as they are a key to understanding much of the biology curriculum. However, mastering these concepts can be challenging due to their interdisciplinary and abstract nature. Even at their simplest level, osmosis and diffusion require the learner to imagine processes they cannot see. In addition, many students begin university with flawed beliefs about these two concepts which will impede learning in related areas. The aim of this study was to explore misconceptions around osmosis and diffusion held by first-year cell biology students at an Australian regional university. The 18-item Osmosis and Diffusion Conceptual Assessment was completed by 767 students. From the results, four key misconceptions were identified: approximately half of the participants believed dissolved substances will eventually settle out of a solution; approximately one quarter thought that water will always reach equal levels;...

Influence of Particle Theory Conceptions on Pre-service Science Teachers’ Understanding of Osmosis and Diffusion

Journal of Biological Education, 2014

This study investigated the understanding of diffusion, osmosis and particle theory of matter concepts among 192 pre-service science teachers in Saudi Arabia using a 17-item two-tier multiple-choice diagnostic test. The data analysis showed that the pre-service teachers' understanding of osmosis and diffusion concepts was mildly correlated with their understanding of particle theory. We also identified 18 common alternative conceptions in these topics. The findings suggest that greater time and attention needs to be invested in the teaching of particle theory for Saudi pre-service teachers to ensure their scientific understanding of diffusion and osmosis concepts, so that they can help students understand the concepts better.

Rural Students’ Conceptual Understanding of Diffusion and Osmosis

Asia Pacific Journal of Educators and Education, 2020

The purpose of this study was to determine students' understanding of the topic "Movement of Substances Across the Plasma Membrane" that covers the concepts of diffusion and osmosis. This study adopted the survey research design. A total of 288 students studying in Grade 10 in rural secondary schools were assessed. The instrument used is a test called the Movement of Substances across the Plasma Membrane (MSPM) is a two-tier multiple-choice question test with a high reliability coefficient (r = 0.877). The results show that the majority of students, i.e. 54% of the students obtained average scores. The findings reveal that the overall performance of the students in terms of their understanding of the concepts of diffusion and osmosis was unsatisfactory. An implication of the study is that the MSPM test (two-tier diagnostic test) provides a feasible approach for evaluating students' understanding and for identifying students' coherent understanding of the diffusion and osmosis concepts. It was found that even though students chose the correct option at the first tier of the test, but it was revealed that students provided misconceptions when had to give explanations to their options in the first tier. The misconceptions identified in the study could serve as a resource for Biology teachers to promote meaningful learning.

Osmosis and Diffusion Conceptual Assessment

CBE—Life Sciences Education, 2011

Biology student mastery regarding the mechanisms of diffusion and osmosis is difficult to achieve. To monitor comprehension of these processes among students at a large public university, we developed and validated an 18-item Osmosis and Diffusion Conceptual Assessment (ODCA). This assessment includes two-tiered items, some adopted or modified from the previously published Diffusion and Osmosis Diagnostic Test (DODT) and some newly developed items. The ODCA, a validated instrument containing fewer items than the DODT and emphasizing different content areas within the realm of osmosis and diffusion, better aligns with our curriculum. Creation of the ODCA involved removal of six DODT item pairs, modification of another six DODT item pairs, and development of three new item pairs addressing basic osmosis and diffusion concepts. Responses to ODCA items testing the same concepts as the DODT were remarkably similar to responses to the DODT collected from students 15 yr earlier, suggesting...

Examining the pedagogical content knowledge and practice of experienced secondary biology teachers for teaching diffusion and osmosis

Friedrichsen, first for always challenging me to think deeply, search for explanations, and achieve more than I thought possible. Your enthusiasm, outstanding guidance, and excellent mentoring enabled me to grow as a researcher. I cannot thank you enough for so generously sharing your time, talent, and expertise. I extend my gratitude to the members of my doctoral committee. Your comprehensive exam questions provided the basis for my research and your feedback, suggestions, and ideas guided my progress. Each of you has contributed greatly to my knowledge of education, science, and research throughout my program. I want to thank Dr. Lloyd Barrow, whose thoughtful guidance, insight, and support throughout my doctoral program has been invaluable. I want to extend my gratitude to Dr. Mark Volkmann whose research mentorship provided the foundation of knowledge and understanding of research needed to accomplish my dissertation work. Dr. David Bergin, and Dr. vom Saal, thank you for your unique insights and advice. Thank you all for the genuine concern and interest in my progress throughout my doctoral program. Your support has been an outstanding source of knowledge and strength. I would like to thank all of the faculty members of the Science Education Center. Your knowledge and professionalism are impressive. Working with you through courses, projects, and internships has greatly enhanced and extended my knowledge and understanding of science education, teacher preparation, and education research. Thank you for having high expectations and challenging me to think deeply and achieve more. I