Lesson Plan

1. Understand how to solve compare problems (C)

teaches Common Core State Standards CCSS.Math.Content.1.OA.A.1 http://corestandards.org/Math/Content/1/OA/A/1
teaches Common Core State Standards CCSS.Math.Practice.MP1 http://corestandards.org/Math/Practice/MP1
teaches Common Core State Standards CCSS.Math.Practice.MP2 http://corestandards.org/Math/Practice/MP2
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Lesson objective: Solve compare problems / More Version.

Students bring prior knowledge of addition and subtraction from 1.OA.3. This prior knowledge is extended to larger numbers as students solve problems. A conceptual challenge students may encounter is having to calculate x more than a given number.

The concept is developed through work with counters and number lines, which allow students to have hands on experiences with the numbers used in the problems.

Students develop strategies for representing a quantity that is some amount more than a given quantity. 

Students engage in Mathematical Practice 4 (reason abstractly and quantitatively) as they solve compare problems using counters and number lines.

Key vocabulary:

  • compare
  • number line
  • make a ten strategy
  • strategy
  • tool

Special Materials Needed:

  • counters
  • cubes
  • student number lines (optional)
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