3-5, 6-8
Explore different representations for fractions including improper
fractions, mixed numbers, decimals, and percentages. Additionally, there
are length, area, region, and set models.
9-12
Explore linear regression and residuals using this Geogebra interactive.
6-8, 9-12
Explore relationships between inputs and outputs by manipulating interactive double number lines.
This interactive is optimized for your desktop and tablet.
Pre-K-2, 3-5, 6-8, 9-12
This tool allows you to manipulate various geometric solids and investigate their properties.
Pre-K-2
Help the alien spaceship move cows into corrals by counting, adding, and
subtracting. This activity helps children learn grouping, tally marks,
and place value.
9-12
This interactive demonstrates how to bisect an angle.
9-12
Use this applet to show how to drop a perpendicular from a point onto a line.
9-12
Use this tool to demonstrate how to draw a perpendicular bisector.
9-12
Use this tool to explore how the Simson line of a triangle is related to the orthocenter.
Investigating Functions with a Ferris Wheel: Distance vs. Height
A Web Sketchpad activity helps students make sense of relationships between quantities, in this case the way that the distance a car travels around a Ferris wheel covaries with its height.
<iframe src="/tools/ferriswheel/FerrisWheel_
