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Find Someone: Use Math to Learn About Friends
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Create a “Find Someone” list, with about 10 items, each containing a shape, number, or measurement. Can you find someone in the group with hair about 4 inches long? Someone wearing parallel lines?
Growing Plants: Track Their Growth
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In this activity, learners will be working with predictions with a time frame of one week, or longer. Start by planting seedlings.

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

Turbidity
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This is an activity about turbidity, or the amount of sediment suspended in water.

Pyramids and Triangles
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Straws and pipe cleaners are terrific materials for building models of pyramids and cubes.

Explore Like a Scientist: Fruity Observations
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In this activity, learners use their senses to collect information about a fruit and record their findings in a Science Journal.

Buckets of Popcorn
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In this activity, learners develop an understanding of cylinders and volume as they compare two sizes of popcorn buckets.
Is It Possible: Estimating Measurement
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In this activity, learners will decide together on a question about how far, long or high the group could reach together.

Topographic Investigation: Map an Underwater Surface
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In this activity, learners create a map of a hidden surface using a "sounding stick" -- a technique similar to how underwater maps were once made.

Line Up: Using Math To Stand In Line
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Put math of measurement into lining up — and make waiting in line fun. Choose a size characteristic that learners can physically compare, such as foot length or hair length.

Digging Deeper!
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In this activity, learners explore dinosaur skeletons and anatomy. Learners make observations about a T. rex skeleton diagram and then measure the skeleton length and width.

Good Catch!
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In this activity, learners "go fishing," then practice ruler use and size/pattern comparison with the animals they catch.

Learn About Measurements Using a Homemade Scale
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In this activity, caregivers and young learners work together to make a scale from household materials to compare different weights--an essential principle in early math.
Mix & Match Estimation
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In this activity, learners use their estimation skills to match the unmarked containers to their amounts.

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.

Balancing Act
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In this activity, learners will build thier own balance scale. Learners will explore weight and comparison through this activity.
What Causes Rainbows?
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In this activity, learners explore how and why rainbows form by creating rainbows in a variety of ways using simple materials. Learners create rainbows indoors and outdoors.

Paper Cup Anemometer
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In this meteorological activity, learners get to build their very own anemometer (instrument for measuring wind speed) using a paper cup.

Make a Balance / Scale
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In this activity, learners create a kind of balance device using a wire coat hanger, some string, and paper cups.

Exploring Size: Memory Game
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In this activity, learners play a card game that explores different size scales--macro, micro and nano.