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Instructor Overview

In Part l of this two-part lesson, students use an interactive to place percent increase and percent decrease signs between monetary amounts to indicate the correct increase or decrease between the amounts of money. They must also place the correct decimal multiplier  between the two amounts to show what decimal to multiply the original amount by to get the final amount.

Key Concepts

Students apply understanding of percent change situations to systematize and generalize patterns in relating two amounts by multiplication.

Goals and Learning Objectives

  • Identify the percent increase or percent decrease between two amounts.
  • Identify the decimal multiplier that when multiplied by the original amount results in the final amount.
  • Reason abstractly and quantitatively.