Asia-Pacific Forum on Science Learning and Teaching, Volume 7, Issue 1, Article 4 (June, 2006) Muammer ÇALIK , Alipasa AYAS and Richard K. COLL A constructivist-based model for the teaching of dissolution of gas in a liquid Contents Next

A constructivist-based model for the teaching of dissolution of gas in a liquid

Muammer ÇALIK^1,4 , Alipasa AYAS² and Richard K. COLL³

¹ Giresun University, Giresun Faculty of Education, Department of Elementary Science Education, 28200 Giresun/TURKEY

²KTU, Fatih Faculty of Education, Department of Secondary Science and Mathematics Education, 61335 Sögütlü –Trabzon/TURKEY

³ Science and Engineering, University of Waikato, Hamilton, NEW ZEALAND

⁴Correspondence author

E-mail: muammer38@hotmail.com

Received 7 December, 2005
Revised 26 May, 2006

Contents

• Abstract
• Introduction
• A Four-step Constructivist Teaching Model
• Activity
• Eliciting students’ pre-existing ideas
  • Focusing
  • Challenging
  • Applying (Fruitfulness)
• References

 

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Abstract

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.

 

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