Mathematics explains the workings of the universe, from particle physics to engineering and economics. Math is even closely related to music, and their common ground has something to do with a Rubik's Cube puzzle. Michael Staff explains...

This animated video illustrates a visual model for solving a word problem involving the division of fractions. The problem asks students to use fractions to compare the spring weight of a hedgehog with its weight just before hibernation....

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...

Detailed math tutorial features notes and examples that illustrate how to factor polynomials. It discusses factoring out the greatest common factor, factoring by grouping, factoring quadratics, and factoring polynomials with degree...

Adult learners are a challenging group to reach when teaching basic mathematical skills. This guide presents ideas and worksheets for teaching them how to solve word problems.

A stem and leaf plot is a graphical representation for investigating variation. You will convert an ordered stem and leaf display grouped by tens into an ordered display grouped by fives.

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.

As a part of the online collaborative unit, Westward Ho!, students will work in cooperative groups of 4-5 students to decide what items they need to take on the Oregon Trail, determine the cost of the items, and complete a ledger to...

Third graders develop their understanding of multiplication by grouping objects into equal groups to model the factors and products.

Grouping by tens reinforces the understanding of place value

Rock out to a musical demonstration of math involved in constructing rhythms from groups of beats in this video from KQED. In the accompanying classroom activity, students consider how the note durations comprising a measure in 3/4 time...

A histogram displays numerical data by grouping data into "bins" of equal width. Each bin is plotted as a bar whose height corresponds to how many data points are in that bin.

Compare a division problem with whole numbers to a similar problem about dividing fractions in this interactive from KET. Students watch a video of a peer talking about a fraction problem that involves equal groups, with the number of...

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...

Ahoy Matey! Join PBS Kids characters Peg + Cat to explore fair sharing and solve math problems to help a group of cranky pirates divide things fairly. Children will separate sets of objects into equal groups and divide single objects...

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

In this lesson, third grade students will explore "fossils" by using chocolate chip cookies in an interactive fossil dig! Through creative problem-based learning that incorporates technology, students will work in collaborative groups to...

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.

This University of St. Andrews site offers a biography of George Polya. Many links are provided.