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ERIC Number: EJ1117727
Record Type: Journal
Publication Date: 2016-Sep
Pages: 8
Abstractor: ERIC
ISBN: N/A
ISSN: ISSN-0036-8555
Separating a Mixture
Lotter, Christine; Taylor, Laurie
Science Teacher, v83 n6 p61-68 Sep 2016
In the 2 day lesson presented in this article, students explain how ionic substances interact in solutions by developing and revising their own explanatory models. The lesson engaged students in three-dimensional learning through creating and revising their own models to explain the interaction of ionic substances and polar molecules in a closed system. Important for student understanding was the need to push students to think at both the macro and particulate chemical representation levels. Students came into the lesson with a basic understanding of how density influences the behavior of liquids and solids, but the students had not yet learned about the influence of intermolecular attractions on solubility The lesson was taught in a physical science course.
National Science Teachers Association. 1840 Wilson Boulevard, Arlington, VA 22201-3000. Tel: 800-722-6782; Fax: 703-243-3924; e-mail: membership@nsta.org; Web site: http://www.nsta.org
Publication Type: Journal Articles; Reports - Descriptive; Guides - Classroom - Teacher
Education Level: N/A
Audience: Teachers
Language: English
Sponsor: N/A
Authoring Institution: N/A