Lesson plan

4. Use a card game to write numbers in standard form, expanded form, and word form (A)

teaches Common Core State Standards CCSS.Math.Content.2.NBT.A.3 http://corestandards.org/Math/Content/2/NBT/A/3
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7
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Lesson objective: Apply knowledge of ways to name numbers. 

This lesson provides an opportunity for students to apply their knowledge and understanding of naming numbers to a mathematical situation. Students are asked to help the teacher complete her set of game cards by coming up with equivalent names for numbers. 

Key Concept students will use: 

  • Representing a whole number in different ways (including base ten numerals, number-names, and expanded form) does not change its value.

Skills students will use:

  • Understand that the three digits of a three-digit number represent the amount of hundreds, tens, and ones (Grade 2, Unit 6)
  • Write three-digit numbers in expanded form
  • Write three-digit numbers in word form
  • Write three-digit numbers in standard form

Students engage in Mathematical Practice 7 (Look for and make use of structure) as they look for patterns in the way we name numbers to name numbers they have not seen before. 

Key vocabulary: 

  • expanded form
  • standard form
  • value
  • word form

Special materials needed:

  • base ten blocks
  • place value mat (optional)