Imagination, Intuition, and Computing in School Algebra
Thomas E. Kieren, Alton T. Olson · Mathematics Teacher Learning and Teaching PK-12 · 1989
Two incidents involving novice teachers with junior high and senior high school classes form a background for this article. In the first, a seventh-grade class was involved in a variety of problem-solving activities. They had just engaged in a very active exchange of questions involving complex pricing of pizza orders. Then the lesson turned to representing problems and situations with equations.