Muammer ÇALIK; Alipasa AYAS; Richard K. COLL
Description:
In this article we present details of a four-step constructivist-based teaching strategy, which helps students understand the dissolution of a gas in a liquid. The model derived from Ayas (1995) involves elicitation of pre-existing ideas, focusing on the target concept, challenging students’ ideas, and applying newly constructed ideas to similar but related situations. Group work also is a feature of the model, and an appealing feature is that it uses simple, low-cost, material resources.