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Science Activities
Projects and Curriculum Ideas in STEM Classrooms
Volume 59, 2022 - Issue 3
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Articles

A model-based approach to teaching about solutions

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Pages 135-141 | Published online: 09 May 2022
 

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.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was generously provided by the National Science Foundation (Award Number DRL 1720996).

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