A model-based approach to teaching about solutions. (3rd July 2022)

• Record Type: Journal Article
• Authors: Eymur, Gülüzar; Capps, Daniel K.
• Is Part Of: Science activities. Volume 59:Number 3(2022)
• Page Start: 135
• Page End: 141
• Publication Date: 2022-07-03
• Subjects: Molecular modeling -- solutions -- high school -- chemical education research; Science -- Study and teaching -- Periodicals; Science -- Study and teaching (Elementary) -- Periodicals; Science -- Study and teaching (Secondary) -- Periodicals; 507.1
• DOI: 10.1080/00368121.2022.2071814
• Languages: English
• ISSNs: 0036-8121

Abstract

Abstract: We present an example of a novel, model-based approach to instruction in which learners constructed a representation of a specific phenomenon, evaluated their representation, and then revised it, via an abstraction process, to construct a model. The example took place in high school in the context of solution chemistry. The aim of the instruction was to support students in developing a generalized model for a homogenous mixture where the ratio of the solute and solvent remains the same throughout the solution. Students also developed a general model of the effect of pressure and temperature on solubility. Pre- and posttests were administered to provide evidence of student learning because of the experience.