Lesson plan

# 10. Solve real-world addition and subtraction problems (Part 2) (A)

teaches Common Core State Standards CCSS.Math.Content.K.OA.A.1 http://corestandards.org/Math/Content/K/OA/A/1
teaches Common Core State Standards CCSS.Math.Content.K.OA.A.2 http://corestandards.org/Math/Content/K/OA/A/2
teaches Common Core State Standards CCSS.Math.Content.K.OA.A.3 http://corestandards.org/Math/Content/K/OA/A/3
teaches Common Core State Standards CCSS.Math.Practice.MP4 http://corestandards.org/Math/Practice/MP4
teaches Common Core State Standards CCSS.Math.Practice.MP5 http://corestandards.org/Math/Practice/MP5
teaches Common Core State Standards CCSS.Math.Practice.MP6 http://corestandards.org/Math/Practice/MP6

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Lesson objective: Use objects and drawings to solve real-world addition and subtraction problems.

This lesson provides an opportunity for students to apply their knowledge and understanding of addition and subtraction to a real-life situation. Students are asked to use drawings and objects to solve addition as "add to" situations.

Key Concept students will use:

• Addition and subtraction can be used to solve real-world problems.

Skills students will use:

• Counting groups of objects (Kindergarten, Unit 2)
• Subtracting numbers to 10

Students engage in Mathematical Practice 4 (Model with mathematics) as they use drawings and objects to solve addition and subtraction problems.

Key vocabulary:

• equation
• total

Special materials needed:

• manipulatives, such as two-sided counters
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• 10. Solve real-world addition and subtraction problems (Part 2) (A)