This animated video illustrates a word problem that requires dividing two fractions with equal groups, group size unknown. Students are presented with a problem that asks how long it takes a sloth to climb down a tree trunk at an even...

This lesson plan has students creating a model to find the total number of combinations that can be made from groups of objects. Using a model helps students develop a conceptual understanding of multiplication.

Ari has collected data on how much her classmates study each week and how well they did on their recent math test. Here is part of the data showing the percentage of each group (divided according to hours spent studying) who got B's or...

In this week's Afterschool Adventure, children will use number powers to solve problems and save the day! They will use grouping power to save a parade, skip counting power to catch a pie-snatching thief, and speed counting and place...

Duke University has established the Center for Inquiry-Based Learning. It serves to enhance math and science lessons. Click on Resources for good examples of Inquiry-based lesson plans.

Grouping by tens reinforces the understanding of place value

This resource provides information about the commutative and associative properties of multiplication.

In this video, students explore Depression-era post office murals and modern outdoor murals to learn how artists use proportional reasoning and measurement to create large-scale paintings. The video ends with the question, "How do...

Critique a peer's thinking about two division word problems, one with whole and mixed numbers and one with two fractions, in this interactive from KET. Students watch a video of a student thinking through two word problems that involve...

It's time to stand in the spotlight! During this Afterschool Adventure, children will learn about and practice a variety of math skills as they gather information about their favorite subject-themselves! Children will start out by...

After completing this activity, the students will understand that scientists group animals into categories. Students will understand that scientists use specific characteristics to group animals. They will also extend their knowledge of...

Compare and order fractions, integers, mixed numbers and decimals in ascending or descending order. Order fractions from least to greatest or from greatest to least.