Lesson plan

Optional: Practicing Making a Group of Ten

  • From K-5 Math Companion Curriculum
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  • Standards
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teaches Common Core State Standards 1.NBT.B.2.a http://corestandards.org/Math/Content/1/NBT/B/2/a
teaches Common Core State Standards MP2 http://corestandards.org/Math/Practice/MP2
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This lesson is optional. It repeats some of the ideas of Lesson 2 and can be used for additional practice on the concept of unitizing a group of ten.

Lesson objective: To practice making a bundle of 10 ones and recognizing that bundle as one group of 10.

This lesson helps to build procedural skill with place value. A ten frame is used here because it represents 10 single ones bundled into one unit of 10. This work develops students' understanding that the one in the tens place of a teen number is equal to one group of 10.

Students engage in Mathematical Practice 2 (Reason abstractly and quantitatively) as they represent bundles of 10 both pictorially and numerically in a ten frame and on a number path.

Key vocabulary:

  • bundle
  • frame
  • group
  • ones
  • singles
  • Ten

Special materials needed:

  • counters
  • 1- 9 numeral cards