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What is Making Ten and Decomposing Numbers about?

This lesson plan focuses on using equivalent and known sums to solve addition and subtraction problems within 20. Students will work in partners using base ten blocks and number cards. They will practice writing addition problems as equivalent subtraction problems (e.g. 8+3=11 written as 11-8=3) and breaking addition problems into known sums using base ten blocks (e.g. 5+7=5+5+2=12). The teacher will check for understanding through class discussion and informal assessment of partner work. Accommodations are

Author

api-534201517

Language

EN