20 outdoor STEM challenges that use the natural world as a laboratory. Build a bridge from sticks. Design a waterproof shelter. Measure tree heights using shadows. Engineer a boat that floats. Each challenge is a hands-on engineering adventure using only what you find outside.
Ages 6–14 · Card guide · 3 skill levels
Twenty build-and-test challenges outdoors, using sticks, rocks and whatever else is on the ground. Plan, build, test, improve. Change one thing and test again, which is exactly how engineers work and nothing like how building usually gets taught.
The patch of grass behind the house is the most underrated educational space on the planet. These activities turn outside time into learning time without any kid noticing the difference.
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Designed by a teacher with 15 years of classroom experience, now homeschooling her own kids.
