In previous lessons, students used 10-frames and fingers to compose and decompose 10 in more than one way. In the previous lesson, students used the structure of a partially filled in 10-frame to determine how many more needed to be added to make 10. In this lesson, students develop strategies for finding the number that makes 10 when added to a given number.
While students may use any method that makes sense to them to find the given number, using 10-frames and fingers is highlighted because the structure allows students to see how many more are needed to make 10. As they choose a strategy, they will be making use of appropriate tools strategically (MP5).
- Fill in equations to represent compositions and decompositions of 10.
- Find the number that makes 10 when added to a given number.
- Formemos 10.
- Gather materials from:
- Math Fingers, Stages 1-4
- Shake and Spill, Stages 1-3
- Counting Collections, Stage 1
- Roll and Add, Stages 1 and 2
|Activity 1||10 min|
|Activity 2||15 min|
|Activity 3||15 min|
|Lesson Synthesis||5 min|
Teacher Reflection Questions
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