Lesson Plan

5. Teen Number Matching (A)

teaches Common Core State Standards CCSS.Math.Content.1.NBT.B.2b http://corestandards.org/Math/Content/1/NBT/B/2/b
teaches Common Core State Standards CCSS.Math.Practice.MP2 http://corestandards.org/Math/Practice/MP2
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Lesson objective: Connect different representations of a teen number.

This lesson provides an opportunity for students to apply their knowledge and understanding of place value with teen numbers to both real-life and mathematical situations. Students are asked to match cards representing teen numbers in six different ways. 

Key Concept students will use: 

  • The numbers 11-19 are made of a ten and 1, 2, 3, 4, 5, 6, 7, 8, or 9.

Skills students will use:

  • Recognizing the value of the ten in a teen number.
  • Recogizing how many more ones than ten make a specific teen number.
  • Recognizing pictorial and numeric representations of teen numbers.

Students engage in Mathematical Practice 2 (Reason abstractly and quantitativley) as they make connections between numeric, pictorial, and real-life representations of teen numbers.

Key vocabulary: 

  • digit
  • ones
  • teen number
  • tens frames

Special materials needed:

  • one copy of teen number matching cards for every two students (can be done in groups of 3 or 4)
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