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Lesson Plan
Illustrative Mathematics

Sammy's Chipmunk and Squirrel Observations

For Teachers 7th - 9th Standards
Here is a fun project. Sammy observes a chipmunk and a squirrel to see how many holes each needs in order to stash the same number of acorns.  Scholars could find the answer algebraically or create a table to analyze the problem in...
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Worksheet
Curated OER

Problem Solving: Guess and Check problem solving 4.5

For Students 2nd - 3rd
In this problem solving worksheet, students read a word problem, write sentences explaining comprehension of important information, how to check each guess, the solution, and how to check for a reasonable answer. Students write four...