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The Boxes Go Mobile
Source Institutions
Learners display their findings after a study of surface area and volume. They build a mobile to show a commercially available box and a constructed cubical box of the same volume.
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Fill It Up
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Players take turns adding shapes made of three squares to a grid. They try to fit their shapes on the grid in a way that blocks the other player.
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Walking Polygons
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In this activity, learners walk the sides and interior angles of various polygons drawn on the playground. As they do so, learners practice rotating clockwise 180° and 360°.
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Twisted Tesselations
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In this activity (on pages 41-47 of PDF), learners explore tesselating geometric patterns (repeated shapes, similar to the art of M.C. Escher).
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Geometry: Let's Face It
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In this math lesson, learners identify, describe, and construct the five regular polyhedra.
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Beyond Dominoes: Polyominoes
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In this activity, learners add squares to paper dominoes to make polyominoes.
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Exploring a Complex Space-Filling Shape
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In this activity, learners build a paper stellated rhombic dodecahedron, a three-dimensional 12-pointed star.
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Great Openings: Slots, 35 Sense, and Hole In One
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These three short activities challenge groups to fit objects through paper and index cards: "Slots" presents the challenge for one learner to figure out which objects fit through a hole cut by another
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Party Hat Symmetry
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In this hands-on activity, learners make New Year's Eve party hats out of wrapping paper. Learners use symmetry and measurement to cut out shapes they need to assemble the hats.
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Tessellations
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In this activity, learners will engineer a new shape and use it to create a new pattern with no wasted space.
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Geometry and Algebra: The Future Flight Equation
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In this activity, learners discover how NASA engineers develop experimental aircraft.
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Scaling Cubes
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In this activity, learners explore scale by using building cubes to see how changing the length, width, and height of a three-dimensional object affects its surface area and its volume.
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The Shadow Knows II
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In this activity, learners will measure the length of a shadow and use the distance from the equator to calculate the circumference of the earth.
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Geometry: Tiling the Plaza
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In this math lesson, learners arrange pattern blocks to create tessellations and to explore geometric patterns. Learners first explore making patterns with a variety of pattern blocks.
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Paper Folding: Unfurling Geometric Paper Shapes
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Use geometry, a ruler, and a steady hand to create these amazing unfurling paper folds!
Six Squares: Geometry and Design
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In this activity, learners take a turn contributing a closed figure made of six squares to a large grid; each must be different from all the others on the grid so far.
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Mass, Area, Volume
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In this activity (page 18 of PDF), learners will measure the volume of impact craters created by projectiles of different masses.
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Solving Playground Network Problems
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In this activity, learners use cooperation and logical thinking to find solutions to network problems on the playground.
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Tricky Tangrams
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In this activity (on pages 49-54 of PDF), learners play with tangrams, a set of triangles, squares and a parallelogram that can combine into a larger square as well as all sorts of other shapes.
Dowels and Rubber Bands I
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If you have 3-foot dowels and rubber bands, you can can started on this fun and open design challenge. You can make structures big and small: make it so you can fit your parent into it!