Lesson plan

2. Using a number line to compare decimals with comparison symbols and language (FP)

teaches Common Core State Standards CCSS.Math.Content.5.NBT.A.3b http://corestandards.org/Math/Content/5/NBT/A/3/b
teaches Common Core State Standards CCSS.Math.Practice.MP6 http://corestandards.org/Math/Practice/MP6
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7
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Lesson objective: Use a number line to compare decimals.

This lesson helps to build procedural skill with decimal comparison. Number lines are used here because it shows the relationship between place values and different decimals. This work develops students' understanding that decimals are numbers that can be compared.

Students engage in Mathematical Practice 7 (Look for and make use of structure) as they use number lines to help them make sense of and compare decimals to the thousandths place.

Key vocabulary:

  • compare
  • decimal
  • equal to
  • greater than
  • hundredths
  • less than
  • number Line
  • place value
  • tenths
  • thousandths

Special materials needed:

  • paper with blank number lines