# 5. Put together two numbers to make 10 (FP)

teaches Common Core State Standards CCSS.Math.Content.K.OA.A.4 http://corestandards.org/Math/Content/K/OA/A/4
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7

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Lesson objective: Put together partner numbers to make 10.

The 10-frame is used here to help students track the total of 10 objects while also visualizing different combinations to compose 10.  The number bond is used to build a mental picture of the relationship between a number, in this case 10, and the parts that combine to make it.

Students engage in Mathematical Practice 7 (Look for and make use of structure) as they notice that there is only one number that is added to each number one to nine that will make 10. The ability to make 10 is also foundational to place value understanding.

Key vocabulary:

• compose
• decompose
• number bond
• put together
• 10-frame

Special materials needed:

• Ten Fish game directions
• 10-frame numeral cards
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