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Subtraction Strategies
Mathematics
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Composing and Decomposing
Composing and Decomposing
Lesson Plan
Composing and Decomposing
Use this lesson to introduce composing and decomposing as part of your students’ addition and subtraction toolkits.
2nd grade
Math
Lesson Plan
Big Spenders
Big Spenders
Lesson Plan
Big Spenders
Get ready to do some shopping! In this lesson, students will learn about subtracting 100 from multiples of 100 when making big purchases.
2nd grade
Math
Lesson Plan
Make a Big Difference
Make a Big Difference
Lesson Plan
Make a Big Difference
Master rounding and estimating skills by having students challenge their classmates in the Make a Big Difference game. Roll three dice two times to arrive at two three-digit numbers. The largest difference wins!
3rd grade
Math
Lesson Plan