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Lesson Plan
Curated OER

Prime Numbers

For Teachers 9th - 11th
Students differentiate between prime and composite numbers. In this algebra lesson, students define the terminology and investigate the contributions made by Eratosthenes and Euclid as it relates to prime numbers. Students apply the...
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Worksheet
Curated OER

Primes and Triples

For Students 12th - Higher Ed
In this primes instructional activity, students list three triples that are generated by formulas. They explain how to generate these formulas and discuss the Pythagorean Triples. This one-page instructional activity contains one...
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Worksheet
Curated OER

Finding All Those Prime Factors

For Students 9th - 12th
In this algebra worksheet, students complete a chart that finds the prime factors, prime factorization, and writing them with powers as well as interpret the chart. There 16 questions.
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Worksheet
Curated OER

Greatest Common Divisor

For Students 9th - 10th
In this greatest common divisor worksheet, students use prime factorization to determine the greatest common factors of two or more numbers. Explanations and examples are provided. This two-page worksheet contains ten problems.
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Worksheet
Curated OER

Least Common Multiple

For Students 8th - 10th
In this least common multiple worksheet, students write numbers as a product of primes to determine the least common multiple. Explanations and examples are provided. This two-page worksheet contains ten problems.
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Lesson Plan
West Contra Costa Unified School District

Simplifying Radicals – Day 1

For Teachers 8th - 10th
It doesn't get simpler than this. Scholars first learn to simplify radicals by determining the prime factors of the radicand. The instructional activity progresses to simplifying radicals involving algebraic expressions in the radicand.
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Lesson Plan
Curated OER

Greatest Common Factor: Using the Factor Tree

For Teachers 9th - 10th
Students find the greatest common factor of two numbers. In this algebra lesson, students use prime factorization to find their factor to simplify equations. they create a factor tree to find the factors of composite numbers.

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