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The Muddy City: Minimal Spanning Trees
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In this puzzle, learners investigate the decisions involved in linking a network between houses in a muddy city.
Paper Lanterns
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In this activity, learners explore light and shadows by creating a lantern they can keep on their nightstand.
Foam Rocket
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In this activity, learners work in teams build and launch rubberband-powered foam rockets.
Paper Sculptures
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In this activity, learners manipulate paper to build original 3-dimensional sculptures. Appropriate for any age, learners can use fingers to tear, crumple, or fold, and if available, scissors to cut.
Looking Through the Algebraic Lens
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In this two-part math lesson, learners investigate problems that foster algebraic thinking across content strands. In the first part, learners explore even and odd numbers linked to quilts.
Number Sense and Computation: To Half or Half Not
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In this math lesson, learners use slices of bread and geoboards to explore several ways to divide a rectangle in half. Learners also identify equivalent fractions that represent one-half.
Building a 3-D Space Maze: Escher Staircase
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In this activity (page 95 of the PDF), learners create Escher Staircase models similar to those that were used by Neurolab's Spatial Orientation Team to investigate the processing of information about
Space Origami: Make Your Own Starshade
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In this activity, learners cut out and fold their own collapsible origami starshade, an invention that shields a telescope's camera lens from the light of a distant star so that NASA scientists can ex
Paperfolding Polyhedrons
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In this activity (on pages 55-66 of PDF), learners fold paper into origami shapes and then combine several identical shapes into a three-dimensional structure.
Building with Wonderful Junk
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In this activity (page 4), learners work in groups to plan and build large structures using recyclable materials they have brought from home.
Polarized Sunglasses
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In this activity, learners explore how polarizing sunglasses can help diminish road glare.
Making a Translation Tessellation
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In this activity, learners slide shapes to create unusual tiled patterns.
Bubble Geometry
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In this activity, learners use geometry in observing the shapes and angles soap bubbles create when they join together.
Laser Jello
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In this activity, learners use gelatin as a lens to investigate the properties of laser light.
Spinning Cylinder: Make a triangle appear on a spinning wheel
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Spin a short piece of PVC pipe that's been marked up, and watch a triangle appear. Enjoy this optical illusion from the Exploratorium's Science Snack series.
Speedy Shelter
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In this design challenge activity, learners invent an emergency shelter that can fit a person and is sturdy and quick to build.
Let's Make Music
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In this activity, learners will create their own percussion instrument with recycled materials. Learners will explore design, fabrication, cause and effect and sound through this activity.
Topological Puzzles
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In this activity, learners construct three math puzzles out of simple materials like wood, string, and Styrofoam.
Sleep Patterns
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In this activity about sleep rhythms (on page 21 of the PDF), learners will collect data about their own sleep cycles and use a fraction wheel to examine their data.
Finger Basketball
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In this activity, learners build mini-basketball courts using cardboard and measuring spoons. Use this activity to introduce learners to catapults, forces, and levers.