Primed and Ready!
Third graders listen to information about Eratosthenes and review the definitions: prime, composite, multiples and divisible. They recreate Eratosthenes' method of compiling prime numbers. They create a poster.
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Grade 4 Lessons for Learning
Designed specifically with Common Core standards in mind, this collection of 4th grade math lessons builds the number sense of young mathematicians as they explore the concepts of place value, multiplication of multi-digit numbers,...
4 mins 3rd - 5th Math CCSS: Designed