Lesson Plan

Comparing Decimals: Decimal War!

Get your students excited and test their knowledge of comparing decimals with this fun decimal "war" game!
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Learning Objectives

Students will be able to compare two decimals by using place value to determine whether one is greater than, less than, or equal to the other.

Introduction

(5 minutes)
Place Value ChartDecimal War!Delicious Decimals
  • Remind students of the terms greater than, >, less than, <, and equal to, =.
  • Write the following two numbers on the board with a space between them: 123 and 23.
  • Have students show a greater than, less than, or equal to sign with their arms.
  • Ask students how they know that 123 is greater than 23. Many students will say because it's a "bigger" or "longer" number.
  • Next, write the following two decimals on the board with a space between them: 1.23 and 2.3.
  • Have students show a greater than, less than, or equal to sign with their arms.
  • Many students will say that 1.23 is greater than 2.3 for the same reason as the previous example. Tell students than in this case, 2.3 is the greater number.
  • Ask students to explain why 2.3 is greater. Take several examples.