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Popova, Maia; Bretz, Stacey Lowery – Chemistry Education Research and Practice, 2018
Organic chemistry students struggle with understanding the energetics of chemical reactions. Reaction coordinate diagrams are one tool that is widely used in organic chemistry classrooms to assist students with visualizing and explaining the energy changes that take place throughout a reaction. Thirty-six students enrolled in organic chemistry II…
Descriptors: Undergraduate Students, Organic Chemistry, Knowledge Level, Scientific Concepts
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Anzovino, Mary E.; Bretz, Stacey Lowery – Chemistry Education Research and Practice, 2016
Organic chemistry students struggle with multiple aspects of reaction mechanisms and the curved arrow notation used by organic chemists. Many faculty believe that an understanding of nucleophiles and electrophiles, among other concepts, is required before students can develop fluency with the electronpushing formalism (EPF). An expert concept map…
Descriptors: Organic Chemistry, Concept Mapping, Scientific Concepts, Molecular Structure
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Anzovino, Mary E.; Bretz, Stacey Lowery – Chemistry Education Research and Practice, 2015
Organic chemistry students struggle with reaction mechanisms and the electron-pushing formalism (EPF) used by practicing organic chemists. Faculty have identified an understanding of nucleophiles and electrophiles as one conceptual prerequisite to mastery of the EPF, but little is known about organic chemistry students' knowledge of nucleophiles…
Descriptors: Science Instruction, Organic Chemistry, Scientific Concepts, Concept Formation
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Ozdilek, Zehra – Chemistry Education Research and Practice, 2015
The purpose of this study was to investigate how a mixed-method case study affects pre-service science teachers' awareness of hexavalent chromium pollution and content knowledge about the properties of chromium's different oxidation states. The study was conducted in Turkey with 55 sophomores during the fall semester of 2013-2014. The students…
Descriptors: Mixed Methods Research, Case Studies, Preservice Teachers, Science Teachers
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Sevian, H.; Bernholt, S.; Szteinberg, G. A.; Auguste, S.; Pérez, L. C. – Chemistry Education Research and Practice, 2015
A perspective is presented on how the representation mapping framework by Hahn and Chater (1998) may be used to characterize reasoning during problem solving in chemistry. To provide examples for testing the framework, an exploratory study was conducted with students and professors from three different courses in the middle of the undergraduate…
Descriptors: Chemistry, Science Instruction, Problem Solving, Undergraduate Study
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Akkuzu, Nalan; Uyulgan, Melis Arzu – Chemistry Education Research and Practice, 2017
The current study examines the performance and achievement of students in the Systematic Qualitative Analyses of Cations (SQACs). We sought answers to questions such as, "What are the students' levels of performance?" and "What is the relation between the average scores for performance and achievement?." This was done by using…
Descriptors: Foreign Countries, Qualitative Research, Science Achievement, Inquiry
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Burmeister, Mareike; Schmidt-Jacob, Sabine; Eilks, Ingo – Chemistry Education Research and Practice, 2013
Sustainability became a regulatory idea of national and international policies worldwide with the advent of the Agenda 21. One part of these policies includes promoting sustainability through educational reform. With the United Nations World Decade for Education for Sustainable Development (ESD), spanning the years 2005 to 2014, all school…
Descriptors: Chemistry, Educational Change, Sustainable Development, Semi Structured Interviews
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Yayon, Malka; Mamlok-Naaman, Rachel; Fortus, David – Chemistry Education Research and Practice, 2012
Chemical bonding knowledge is fundamental and essential to the understanding of almost every topic in chemistry, but it is very difficult to learn. While many studies have characterized some of the central elements of knowledge of this topic, these elements of knowledge have not been systematically organized. We describe the development and…
Descriptors: Knowledge Level, Chemistry, High School Students, Secondary School Science