This applet helps students visualize the shapes of shadows cast by a cube with a light coming from different angles. This helps students visualize shapes from different angles and to identify, sketch and classify the cross-sections of...

Use the shapes provided and figure out how they fit together to make a 3 X 3 cube at this one page website. The solution is readily available right at the website.

Think about the surface area of a cube. At this one page website, you use that information to complete the challenge. Solutions are offered right at the website.

A brief overview of the ten shapes used to represent numbers in the United States and number symbols of different cultures. Learn the symbols used for Chinese numbers when you play Chinese Symbols Memory. Then, test your counting ability...

This site is a lesson plan for using a geoboard in a sixth grade geometry class. The lesson serves as an introduction to the geoboard and its uses in geometry. Some topics the lesson covers include helping to visualize shapes and and...

Enjoy this collection of images that invite us to reflect upon the important places in our lives. Students can practice articulating and writing about their personal sense of place in the world using these images to spark their...

Explore tessellations with real world applications in this activity from the NCTM Math Challenges for Families series. Figure out what shape you would use to create a legal envelope from a single sheet of paper. Then discover how...

[Free Registration/Login Required] In this Flipchart, students use the visual and interactive tools in Activstudio to recognize, extend, or create a pattern or sequence between sets of numbers and/or linear patterns.

[Free Registration/Login Required] In this Flipchart students are posed with a seemingly simple problem: guessing the correct number of handshakes possible amongst a group of eight students. Participants then solve the problem visually...

[Free Registration/Login Required] In this activity, students use the visual cues from a fact family triangle, manipulatives and numbers to understand and apply the concepts and procedures of mathematics including addition, subtraction,...

Kim Preshoff explains how using a visual tool called a population pyramid helps policymakers and social scientists make sense of the statistics, using three different countries' pyramids as examples. [5:01]

In this activity, students will use their senses to form hypotheses from observations. They will develop methods of collecting data, other than visual, by trying to determine the contents of several small boxes and should be able to...

In this exercise, students practice adding and subtracting fractions with unlike denominators word problems. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

Practice solving fraction addition and subtraction word problems. The fractions in these problems have unlike denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...

Find the volume of irregular 3D figures made up of unit cubes by dividing the figures into rectangular prisms and finding the volume of each part. Students receive immediate feedback and have the opportunity to try questions repeatedly,...