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In this math lesson, learners use the setting of a flower-making fundraiser to explore a variety of patterns. Learners examine the patterns in a flower design made of triangles surrounding a square.

In this design challenge activity, learners build a machine out of cardboard that runs smoothly and dependably. Learners must be precise to make sure their component works properly.

In this engineering activity, learners examine bicycle mechanics and gear ratios. Learners determine which gears will help them bike a set course in the shortest amount of time.

In this activity, learners compare and contrast their own skin (including the area covered) with that of an orange.

In this environmental health activity, learners investigate their breathing and pulse rates, and learn how these measurements are affected by physical activity.

In this food science activity, learners conduct an experiment that demonstrates the importance of light to plants.

In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

In this activity, young learners use different-sized paper 'caterpillars' and various household items to predict and measure their height.

In this environmental health activity, learners investigate their own vital lung capacities.

Esta actividad enseña la proporción y razón por hacer que los aprendices hagan "ensaladas" que combinan tres tipos de frijoles en tres combinaciones diferentes.

In this online activity, learners will explore size estimation in one, two and three dimensions. Multiple levels of difficulty allow for progressive skill improvement.

In this online activity, learners will brush up on their multiplication, division, and factoring skills with this exciting game.

This game teaches ratio and proportion by having learners make "salads" that combine three types of beans in different combinations.

Use multiplication to help the aliens find out how much fuel they need to get their spacecrafts home.

In this activity, young learners and their caregivers use non-standard tools, like M&Ms and paper clips, to measure things around their home.