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1.NR.2: Explain the relationship between addition and subtraction and apply the properties of operations to solve real-life addition and subtraction problems within 20.

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Page 18-20 are the standards I am focusing on.

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Students will be able to solve addition and subtraction problems within 20 using various strategies.

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Materials needed: Worksheet, pencil, scratch paper to show work, and munipulatives.

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Materials Needed: Bingo sheets, scrach paper, pencil, and munipulatives if needed.

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This is what I would put on the board and we as a class can do some adding and subtracting together

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Students are adding and subtracting within 20, using mental strategies, they are adding and subtracting using place value strategies and/or the relationship between addition and subtraction. They are solving one-step word problems within 20 with a focus on add to and take from problem types with the start unknown.

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Words that the students will be focused on with adding and subtracting numbers within 20.