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Tan, Kim Chwee Daniel; Treagust, David F.; Chandrasegaran, A. L.; Mocerino, Mauro – Chemistry Education Research and Practice, 2010
In chemical kinetics, in addition to the concepts related to kinetics, stoichiometry, chemical equilibrium and the characteristics of the reactants are often involved when comparing the rates of different reactions, making such comparisons very challenging for students at all levels, as well as for pre-service science teachers. Consequently, four…
Descriptors: Kinetics, Chemistry, Stoichiometry, Graphs
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Ng, Khar Thoe; Lay, Yoon Fah; Areepattamannil, Shaljan; Treagust, David F.; Chandrasegaran, A. L. – Research in Science & Technological Education, 2012
Background: The Trends in International Mathematics and Science Study (TIMSS) assesses the quality of the teaching and learning of science and mathematics among Grades 4 and 8 students across participating countries. Purpose: This study explored the relationship between positive affect towards science and mathematics and achievement in science and…
Descriptors: Academic Achievement, Mathematics Achievement, Science Achievement, Foreign Countries
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Chandrasegaran, A. L.; Treagust, David F.; Mocerino, Mauro – Teaching Science, 2011
This study involved the evaluation of the efficacy of a planned instructional program to facilitate understanding of the macroscopic, submicroscopic and symbolic representational systems when describing and explaining chemical reactions by sixty-five Grade 9 students in a Singapore secondary school. A two-tier multiple-choice diagnostic instrument…
Descriptors: Diagnostic Tests, Chemistry, Foreign Countries, Grade 9
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Incantalupo, Lisa; Treagust, David F.; Koul, Rekha – Journal of Science Education and Technology, 2014
The use of technology in schools is now ubiquitous, but the effectiveness on the learning environment has mixed results. This paper describes the development and validation of an instrument to measure students' attitudes toward and knowledge of technology with the aim of investigating any differences based on gender after a course where the…
Descriptors: Educational Technology, Technology Uses in Education, Teaching Methods, Test Construction
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Chu, Hye-Eun; Treagust, David F. – Journal of Science Education and Technology, 2014
This study focuses on elucidating and explaining reasons for the stability of and interrelationships between students' conceptions about "Light Propagation" and "Visibility of Objects" using contextualized questions across 3 years of secondary schooling from Years 7 to 9. In a large-scale quantitative study involving 1,233…
Descriptors: Optics, Secondary School Students, Secondary School Science, Scientific Concepts
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Chandrasegaran, A. L.; Treagust, David F.; Waldrip, Bruce G.; Chandrasegaran, Antonia – Chemistry Education Research and Practice, 2009
A qualitative case study was conducted to investigate the understanding of the limiting reagent concept and the strategies used by five Year 11 students when solving four reaction stoichiometry problems. Students' written problem-solving strategies were studied using the think-aloud protocol during problem-solving, and retrospective verbalisations…
Descriptors: Stoichiometry, Protocol Analysis, Chemistry, Problem Solving
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Hudson, Ross D.; Treagust, David F. – Research in Science & Technological Education, 2013
Background: This study developed from observations of apparent achievement differences between male and female chemistry performances in a state university entrance examination. Male students performed more strongly than female students, especially in higher scores. Apart from the gender of the students, two other important factors that might…
Descriptors: Chemistry, College Entrance Examinations, State Universities, Gender Differences
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Chu, Hye-Eun; Treagust, David F.; Chandrasegaran, A. L. – Research in Science & Technological Education, 2009
A large scale study involving 1786 year 7-10 Korean students from three school districts in Seoul was undertaken to evaluate their understanding of basic optics concepts using a two-tier multiple-choice diagnostic instrument consisting of four pairs of items, each of which evaluated the same concept in two different contexts. The instrument, which…
Descriptors: Optics, Diagnostic Tests, Foreign Countries, Multiple Choice Tests
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Schmidt, Hans-Jurgen; Kaufmann, Birgit; Treagust, David F. – Chemistry Education Research and Practice, 2009
In introductory chemistry courses students are presented with the model that matter is composed of particles, and that weak forces of attraction exist between them. This model is used to interpret phenomena such as solubility and melting points, and aids in understanding the changes in states of matter as opposed to chemical reactions. We…
Descriptors: Molecular Structure, Models, Scientific Concepts, Scientific Principles
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Treagust, David F.; Duit, Reinders – Cultural Studies of Science Education, 2008
In this response, we attempt to clarify our position on conceptual change, state our position on mental models being a viable construct to represent learning, indicate important issues from the social cultural perspective that can inform our work on conceptual change and lastly comment on issues that we consider to be straw men. Above all we argue…
Descriptors: Concept Formation, Science Instruction, Scientific Concepts, Cultural Influences
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Treagust, David F.; Chandrasegaran, A. L.; Crowley, Julianne; Yung, Benny H. W.; Cheong, Irene P.-A.; Othman, Jazilah – International Journal of Science and Mathematics Education, 2010
This paper reports on the understanding of three key conceptual categories relating to the kinetic particle theory: (1) intermolecular spacing in solids, liquids and gases, (2) changes of state and intermolecular forces and (3) diffusion in liquids and gases, amongst 148 high school students from Brunei, Australia, Hong Kong and Singapore using 11…
Descriptors: Kinetics, Concept Formation, Foreign Countries, Evaluation
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Treagust, David F.; Chandrasegaran, A. L.; Zain, Ahmad N. M.; Ong, Eng Tek; Karpudewan, Mageswary; Halim, Lilia – Chemistry Education Research and Practice, 2011
The efficacy of an intervention instructional program was evaluated to facilitate understanding of particle theory concepts among students (N = 190) using a diagnostic instrument consisting of eleven two-tier multiple-choice items in a pre-test--post-test design. The students involved were high school students, undergraduates and postgraduates…
Descriptors: Intervention, Concept Formation, Scientific Concepts, Theories
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Rahayu, Sri; Treagust, David F.; Chandrasegaran, A. L.; Kita, Masakazu; Ibnu, Suhadi – Research in Science & Technological Education, 2011
Background and purpose: This study investigated Indonesian and Japanese senior high-school students' understanding of electrochemistry concepts. Sample: The questionnaire was administered to 244 Indonesian and 189 Japanese public senior high-school students. Design and methods: An 18-item multiple-choice questionnaire relating to five conceptual…
Descriptors: Chemistry, Concept Formation, Foreign Countries, Comparative Analysis
Treagust, David F.; Duit, Reinders – Journal of Science and Mathematics Education in Southeast Asia, 2009
Conceptual change views of teaching and learning processes in science, and also in various other content domains, have played a significant role in research on teaching and learning as well as in instructional design since the late 1970s. Conceptual change can be interpreted from different individual perspectives or from multiple perspectives. In…
Descriptors: Concept Formation, Change, Science Education, Epistemology
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Othman, Jazilah; Treagust, David F.; Chandrasegaran, A. L. – International Journal of Science Education, 2008
A thorough understanding of chemical bonding requires familiarity with the particulate nature of matter. In this study, a two-tier multiple-choice diagnostic instrument consisting of ten items (five items involving each of the two concepts) was developed to assess students' understanding of the particulate nature of matter and chemical bonding so…
Descriptors: Chemistry, Foreign Countries, Grade 9, Grade 10
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