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Lesson Plan

6. Use addition strategies to solve word problems (A)

teaches Common Core State Standards 111.3.5.G
teaches Common Core State Standards 2.CA.6
teaches Common Core State Standards CCSS.Math.Content.1.OA.B.4
teaches Common Core State Standards CCSS.Math.Content.1.OA.B.3
teaches Common Core State Standards CCSS.Math.Practice.MP7
teaches Common Core State Standards CCSS.Math.Practice.MP3
teaches Common Core State Standards MAFS.1.OA.2.3
teaches Common Core State Standards MAFS.1.OA.2.4
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Lesson objective: Solve word problems using addition strategies.

This lesson provides an opportunity for students to apply their knowledge and understanding of using a number line and related addition and subtraction facts to a real-life situation. Students are asked to figure out whether the money Kareem has saved is enough money to buy a baseball and a glove. 

Key Concept students will use: 

  • We can use strategies such as making ten, counting on, and the relationship between addition and subtraction to add and subtract within 20.

Skills students will use:

  • Representing and solving an addition/subtraction word problem within 10 (Unit K-10; K.OA.A.2).
  • Understanding that the meaning of addition and/or subtraction doesn’t change when different strategies are used (Unit K-10).

Students engage in Mathematical Practice 7 (Look for and make use of structure) as they solve a word problem using the relationship between additon and subtraction using number lines and/or a triangle diagram. 

Key vocabulary: 

  • equation
  • number line
  • related facts


Related content

Appears in

Developing addition and subtraction strategies

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