Idea Sheets are hands-on experience guides linked to core curriculum topics.

Every Idea Sheet is cross-referenced to one or more of the curriculum subjects listed in the Content Standards. Use this Idea Sheets Search Tool to rapidly pinpoint activities that are perfectly suited to the grade level, subject area, and content standard you want to cover.

Idea Sheets are based on readily-available, low-cost materials such as cardboard tubes, bottle caps, old CD's, etc.

You can also Search Idea Sheets by Standards.
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For more information about RAFT resources matched to Girl Scout badges and Boy Scout activities in STEM see

1000 Wins

Adding 3-digit numbers gets easier with this easy-to-learn and fun-to-play card game.
Subjects: Math


Make an instrument with an adjustable pitch to explore the science of sound waves and the art of music!
Subjects: Physical Science


This card game helps students learn to add numbers in their heads. The objective of the game is to get as close to 31 with any number of cards, without going over 31.
Subjects: Math

3D Topo Views

This modeling activity can be used to teach topographic map-reading skills. Students draw a fictitious topographic map, and then transfer the map to stacking lids, producing a great 3-dimensional effect.
Subjects: Earth/Space Science

3D Tree

A bit of cutting and stapling will produce wonderful, little trees that stand up on their own. Decorate the tree for a great winter holiday project, or create several trees of various sizes to make a tabletop scene.
Subjects: Life Science, Art

9 Digits in a 3x3 Matrix

Students explore addition problems with two 3 digit numbers and discover patterns that help find solutions and double check arithmetic answers.
Subjects: Math

Abacus Primer

The abacus is an ancient tool for doing calculations. This activity uses a simplified abacus to teach place value. Each bead represents 1 in the given place, and students can use it to get a visual understanding that 10 beads in a given place (1s, 10s, 100s) can be represented by a single bead in the place to its left (10s, 100s, 1000s).
Subjects: Math, Social Studies

Abacus Variations

This easily created version of an abacus can teach place value and show how different cultures calculate. Abaci can even be based on math systems other than base 10!
Subjects: Math

Above & Below Zero Game!

Add positive and negative numbers on a vertical number line.
Subjects: Math

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