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This activity will have your students looking at multiplication in a whole new way. It’s an “open task,” meaning that each student will learn something unique.
For some, the sieve is a way to master times tables. For others, it will help with common denominators or factoring expressions. The sieve also highlights patterns that can improve mental math with all four operations.
The lesson includes an introduction, lesson plans, two handouts with keys, and a rubric.