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Lesson Plan

10. Ocean World, Day 2: Compare numbers with a partner (A)

teaches Common Core State Standards CCSS.Math.Content.1.NBT.B.3 http://corestandards.org/Math/Content/1/NBT/B/3
teaches Common Core State Standards CCSS.Math.Practice.MP2 http://corestandards.org/Math/Practice/MP2
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Lesson objective: Apply understanding that two two-digit numbers can be compared using the symbols < or >.

This lesson provides an opportunity for students to apply their knowledge and understanding of using symbols to compare numbers to a mathematical situation. Students are asked to count amounts of fish in the game Ocean World, compare their number with a partner's number, and record their comparison using symbols.

Key Concept students will use: 

  • Symbols can be used to compare numbers.

Skills students will use:

  • Apply understanding of the greater than and less than symbol and use symbols appropriately.
  • Ability to compare two two-digit numbers based on meanings of the tens and ones digit. (Grade 1, Unit 8)
  • Understanding that the two digits of a two-digit number represent amounts of tens and ones. (Grade 1, Unit 8)

Students engage in Mathematical Practice #2 (reason abstractly and quantitatively) as they critically think about the relationship between quantities, using flexible thinking of mathematical symbols.

Key vocabulary: 

  • compare
  • determine
  • digit
  • less than
  • greater than
  • ones
  • tens

Special materials needed:

  • base ten blocks
  • connecting cubes
  • Ocean World cards
Related content

Appears in

Interpreting and using symbols in numeric expressions and comparisons

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