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PPT
Curated OER

Fraction XII: Subtracting Unlike Denominators

For Teachers 4th - 5th
This fractions PowerPoint defines and gives examples of multiples and least common multiple, then models how to list multiples and circle the least common multiple. Each step to use in subtracting fractions with unlike denominators is...
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Lesson Plan
Illustrative Mathematics

Multiples and Common Multiples

For Teachers 6th - 7th Standards
Learners are asked to find multiples and common multiples of two numbers. They must take their findings and find a pattern between the numbers and explain their reasoning. Use this resource with The Florist Shop activity in this series...
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Lesson Plan
Illustrative Mathematics

The Florist Shop

For Teachers 6th - 7th Standards
A real-world approach to common multiples asks learners to find different groups of flowers based on their multiples. Useable as a class activity or independent exercise, they will have to organize their thoughts to explain the totals of...