Curated OER
Adding and Subtracting Fractions
In this adding and subtracting fractions instructional activity, students are guided through the process of adding and subtracting fractions and finding the least common denominator for fractions with different denominators. They...
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Math & Science Connection
Whether you're using a collection of Dr. Seuss books to teach basic math skills like counting, adding, and subtracting, or exploring the different states of matter by melting a crayon with a hairdryer, a series...
Curated OER
Average Atomic Mass
In this average atomic mass instructional activity, high schoolers read about how the protons and neutrons make up the atomic mass of an element. They find the average atomic mass given four problems.
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- Adding & Subtracting Fractions
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- Adding, Subtracting Fractions