Understanding the inverse relationship between addition and subtraction is essential for developing fluency in young mathematicians. Zoe and RJ explain how three numbers can form fact families that make two addition and two subtraction...

Here is a must-have resource for studying fairy tales, myths, and folktales with your class! It includes instructional ideas, activities, and materials to support a month-long review of these three unique genres of writing.

Your learners will enjoy thoroughly understanding fractions, and you will appreciate the abundant, quality resources in this comprehensive unit that builds toward a complete understanding of the concept of fractions as numbers. Many...

Explore multiplication through caterpillar study. Learners will view a caterpillar video clip and work with a group to determine how much they would weigh if they grew to be 3,000 times their size as does the caterpillar. They will...

Learners explore multiplication. In this multiplication problem solving activity, students view a video clip which demonstrates loading a truck with packages.  Learners fill in a blank array to represent 1"X 2" and the multiples...

Third graders explore their addition and subtraction skills. In this number sense lesson, 3rd graders analyze different scoring possibilities for a basketball game. This lesson incorporates the use a video titled "Blossom and...