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Addition Strategies: "Make 10"
Addition Strategies: "Make 10"
1st Grade - 2nd Grade

Objective Operations & Algebraic Thinking Using strategies to add and subtract fluently within 20 (e.g., counting on, making ten, decomposing or creating equivalent sums) Materials Needed “Make 10” frame Place Value Blocks Number line “Spin-To-Build” spinner “Build a Sum” record sheet Paper clips Pencils Introduction Pair students with partners, and give each pair 10 ones cubes and 1 tens rod from the Place Value Blocks set. Challenge students to see how many ways they can “make 10” in two minutes (e.g., 2 cubes + 8 cubes, 3 cubes + 7 cubes, etc.). Invite students to share their answers and compare. Provide the “Make 10” frame and have students complete it. Model the problem created in the frame. Ask, “How can I find out how to make 12? 14? 18? Can I start from 10? Is it faster?” Note: Use Place Value Blocks to show visual representations of two-digit numbers. For example, 14 is 1 tens rod and 4 ones cubes.

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Telling Time
Telling Time
2nd Grade

Objective CCSS Math: Measurement & Data 2.MD.7: Tell and write time from analog and digital clocks to the nearest five minutes, using a.m. and p.m. Materials Needed Analog clock templates Brass fasteners Hole punch Scissors Time & Measurement cards and answer key

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