Thank you for your interest in NCTM’s Illuminations. Beginning in mid-April, all Illuminations content will be moving to nctm.org/illuminations. Interactives will remain openly available and NCTM members will have access to all Illuminations lessons with new filtering and search options. We hope you will continue to utilize and enjoy these resources on nctm.org.

Need a pentagonal pyramid that's six inches tall? Or a number line that goes from ‑18 to 32 by 5's? You can create all those things and more! Place the images you want, then export it as a PDF or as a JPG image.

This applet allows you to create equivalent fractions by dividing and shading squares or circles,
and match each fraction to its location on the number line.

Explore different representations for fractions including improper
fractions, mixed numbers, decimals, and percentages. Additionally, there
are length, area, region, and set models.

Help the alien spaceship move cows into corrals by counting, adding, and
subtracting. This activity helps children learn grouping, tally marks,
and place value.

If you would like to rate this lesson, then please register. Riuscipisci bla feummod
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