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ERIC Number: EJ1117676
Record Type: Journal
Publication Date: 2016-Jul
Pages: 6
Abstractor: ERIC
ISSN: ISSN-0036-8555
Connecting the Visible World with the Invisible
Pentecost, Thomas; Weber, Sarah; Herrington, Deborah
Science Teacher, v83 n5 p53-58 Jul 2016
Research suggests that connecting the visible (macroscopic) world of chemical phenomena to the invisible (particulate) world of atoms and molecules enhances student understanding in chemistry. This approach aligns with the science standards and is fundamental to the redesigned AP Chemistry curriculum. However, chemistry is usually taught at the abstract symbolic level, rarely incorporating particulate-level instruction. This article addresses that shortcoming by describing how to use particulate diagrams in a chemistry course. Using particulate diagrams in such topics as nature of matter, chemical/physical changes, ionic compounds, balancing equations, colligative properties, and acids/bases enhances students' critical-thinking skills as they experience the science and engineering practice of Developing and Using Models. The diagrams were incorporated into pre- and post-assessment, lab questions, and explanations given in class.
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Publication Type: Journal Articles; Reports - Descriptive
Education Level: High Schools; Secondary Education
Audience: Teachers
Language: English
Sponsor: National Science Foundation (NSF)
Authoring Institution: N/A
Grant or Contract Numbers: DRL1118658