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Showing 91 to 105 of 692 results Save | Export
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Dickmann, Thomas; Opfermann, Maria; Dammann, Elmar; Lang, Martin; Rumann, Stefan – Chemistry Education Research and Practice, 2019
Visualizations and visual models are of substantial importance for science learning (Harrison and Treagust, 2000), and it seems impossible to study chemistry without visualizations. More specifically, the combination of visualizations with text is especially beneficial for learning when dual coding is fostered (Mayer, 2014). However, at the same…
Descriptors: Science Instruction, Models, Visualization, Visual Stimuli
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Baptista, Monica; Martins, Iva; Conceiçao, Teresa; Reis, Pedro – Chemistry Education Research and Practice, 2019
The purpose of this study was to understand how the use of multiple representations (MR), during a sequence of lessons on the saponification reaction, can help students develop their cognitive structures. We examined (i) the effect of the teaching sequence with MR on the development of the students' cognitive structures and (ii) how, according to…
Descriptors: Science Instruction, Grade 12, High School Students, Chemistry
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Hansen, S. J. R.; Hu, B.; Riedlova, D.; Kelly, R. M.; Akaygun, S.; Villalta-Cerdas, A. – Chemistry Education Research and Practice, 2019
This mixed method study investigation uses eye tracking and qualitative analysis to investigate the impact of animation variation and visual feedback on the critique of submicroscopic representations of experimental phenomena. Undergraduate general chemistry students first viewed an experimental video of a precipitation or oxidation reduction…
Descriptors: Undergraduate Students, Chemistry, Learning Processes, Visual Aids
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Bussey, Thomas J.; Orgill, MaryKay – Chemistry Education Research and Practice, 2019
Instructors draw on their intentions for student learning in the enactment of curriculum, particularly in the selection and presentation of external representation of scientific phenomena. These representations both create opportunities for students to experience non-experiential biochemical phenomena, such as protein translation, and constrain…
Descriptors: Biochemistry, Science Instruction, Teaching Methods, College Faculty
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Sweeder, Ryan D.; Herrington, Deborah G.; VandenPlas, Jessica R. – Chemistry Education Research and Practice, 2019
Simulations have changed chemistry education by allowing students to visualize the motion and interaction of particles underlying important chemical processes. With kinetics, such visualizations can illustrate how particles interact to yield successful reactions and how changes in concentration and temperature impact the number and success of…
Descriptors: Science Instruction, Chemistry, Kinetics, Scientific Concepts
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Kim, Thomas; Wright, L. Kate; Miller, Kathryn – Chemistry Education Research and Practice, 2019
Students in chemistry often demonstrate difficulty with the principle of resonance. Despite many attempts to mitigate this difficulty, there have been few attempts to examine the root cause of these issues. In this study, students were assessed for their perception of Kekule structures based on perceptual learning theory, which is grounded in…
Descriptors: Science Instruction, Chemistry, Scientific Principles, Concept Formation
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Baldwin, Nicole; Orgill, MaryKay – Chemistry Education Research and Practice, 2019
Practicing chemists use models, diagrams, symbols, and figures to represent phenomena which cannot be detected by the human senses. Although research suggests that these external representations (ERs) can also be used to address the challenges that students have in learning chemistry, it is not clear how instructors' use of ERs aligns with their…
Descriptors: Teaching Assistants, College Science, Chemistry, Science Laboratories
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Penn, Mafor; Ramnarain, Umesh – Chemistry Education Research and Practice, 2019
This mixed method study investigated changes in 3rd year Bachelor of Education students' attitudes towards chemistry after learning interventions with virtual chemistry simulations. After participant students identified certain concepts from their 3rd year chemistry module as being abstract and not easily comprehensible, these concepts were…
Descriptors: Foreign Countries, Chemistry, Science Instruction, Computer Simulation
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Allred, Zahilyn D. Roche; Bretz, Stacey Lowery – Chemistry Education Research and Practice, 2019
Multiple chemistry education research studies at the secondary level have characterized students' difficulties regarding a conceptual understanding of the quantum model of the atom. This research explores undergraduate students' interpretations of multiple representations of the atom. Semistructured interviews were conducted with first-year…
Descriptors: Science Instruction, Chemistry, Undergraduate Students, College Science
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Gilewski, Alex; Mallory, Emily; Sandoval, Matthew; Litvak, Mikhail; Ye, Li – Chemistry Education Research and Practice, 2019
This study developed and implemented a learner-centered assessment named Creative Exercises (CEs) in introductory chemistry courses at a four-year university and a two-year community college. CEs were developed and implemented as an intervention for treatment groups. The control groups only used traditional assessments such as multiple-choice and…
Descriptors: Chemistry, Science Instruction, Introductory Courses, Community Colleges
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Breakall, Jared; Randles, Christopher; Tasker, Roy – Chemistry Education Research and Practice, 2019
Multiple-choice (MC) exams are common in undergraduate general chemistry courses in the United States and are known for being difficult to construct. With their extensive use in the general chemistry classroom, it is important to ensure that these exams are valid measures of what chemistry students know and can do. One threat to MC exam validity…
Descriptors: Science Instruction, Chemistry, College Science, Undergraduate Study
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Tan, Kim Chwee Daniel; Taber, Keith S.; Liew, Yong Qiang; Teo, Kay Liang Alan – Chemistry Education Research and Practice, 2019
The internet is prevalent in society today, and user-friendly web-based productivity tools are readily available for developing diagnostic instruments. This study sought to determine the affordances of a web-based diagnostic instrument on ionisation energy (wIEDI) based on the pen-and-paper version, the Ionisation Energy Diagnostic Instrument…
Descriptors: Energy, Secondary School Science, Chemistry, Diagnostic Tests
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Knox, Kerry J.; Gillis, Elizabeth A. L.; Dake, Gregory R. – Chemistry Education Research and Practice, 2019
Demands are placed on undergraduate courses in chemistry to develop transferable skills, such as teamwork, alongside subject content and technical skills. Such skills can be developed by implementing pedagogies which involve students working together. Such pedagogies can, however, pose various challenges, including unfavourable student perceptions…
Descriptors: Undergraduate Students, Student Experience, Cooperative Learning, College Science
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Schmidt-McCormack, Jennifer A.; Judge, Jessyca A.; Spahr, Kellie; Yang, Ellen; Pugh, Raymond; Karlin, Ashley; Sattar, Atia; Thompson, Barry C.; Gere, Anne Ruggles; Shultz, Ginger V. – Chemistry Education Research and Practice, 2019
Acid-base chemistry is a foundational topic that is taught in courses across the chemistry curriculum. Students often have difficulty distinguishing between the different theories of acid-base chemistry--Brønsted-Lowry and Lewis acid-base chemistry--and applying these two definitions correctly in unfamiliar scenarios. To help students learn these…
Descriptors: Organic Chemistry, Science Education, Writing Assignments, Scientific Concepts
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Rodriguez, Jon-Marc G.; Towns, Marcy H. – Chemistry Education Research and Practice, 2019
Student understanding regarding topics in upper-division courses, such as biochemistry, is not well represented in the literature. Herein we describe a study that investigated students' reasoning about Michaelis-Menten enzyme kinetics and enzyme inhibition. Our qualitative study involved semistructured interviews with fourteen second-year students…
Descriptors: Science Instruction, Scientific Concepts, Logical Thinking, Concept Formation
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