This introduction provides an overview of the module. It gives a rationale for why it is so important to teach the causal concepts presented here in order to develop a deep understanding of air pressure phenomena. It makes suggestions for how to encourage a classroom culture that supports the development of the understanding goals of the module.

Introduction Table of Contents

• Overview
• Challenges in Understanding Air Pressure
• Instructional Approach
• Having Students Model Their Ideas
• Endnotes for Introduction

Explanation of Photo

The shape of a balloon results from the balance between inside and outside pressures surrounding the balloon, a type of relational causality.