Curated OER
Prime Numbers and Factors
Solving factor trees is a helpful way to introduce prime numbers. Your math class practices using this method along with two-column tables to find if a number is prime or not. They also learn other vocabulary, such as composite numbers,...
Curated OER
Using Old Maps as Tools to Explore Our World
Students explore historical maps. In this primary source analysis lesson, students uncover the meanings in selected historical maps as they use them to enhance lessons on historical events. Samples for classroom use are provided in this...
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