Education Technology

Multiplication and Division of Rational Numbers

Activity Overview

This lesson involves using an interactive area model to solve multiplication and division problems with positive decimals and mixed numbers.

Objectives

  • Students will use an interactive area model to multiply and divide positive decimals and mixed numbers.
  • Students will use the distributive and commutative properties to multiply decimals and mixed numbers.
  • Students will use the idea of division as an inverse operation of multiplication to divide decimals and mixed numbers.

Vocabulary

  • factor
  • product
  • dividend
  • divisor
  • quotient
  • commutative property of multiplication
  • distributive property
  • inverse

About the Lesson

This lesson involves using an interactive area model to solve multiplication and division problems with positive decimals and mixed numbers.
As a result, students will:

  • Make connections between the geometric model and mathematical operations.
  • Record their steps and observations on their worksheets.
  • Randomly generate new numeric expressions.