Lesson 1.1 Whole Numbers: Using an Area Model to Explain Multiplication

This lesson (Week 1, Lesson 1) begins with strategies to assist students in deriving multiplication facts and progresses to a visual method for recording multidigit multiplication based on area of rectangles. The lesson also introduces the commutative, associative, and distributive properties in the context of multiplication concepts and procedures. An area model is used as an alternative multiplication strategy for struggling students and as a vehicle for understanding the traditional multiplication algorithm.

Some important features on the Planning Information page (TP2): Manipulatives help students understand the concept of the area of rectangles prior to generalizing the model. Group work establishes a spirit of classroom collaboration from the beginning of the school year. Making concepts meaningful prior to formalizing definitions and procedures is fundamental to the program.

Download Lesson 1.1 (PDF)