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In this data collection and analysis activity, learners evaluate fish physiology and ecology using vision research data from Dr.

free Ages 14 - 18 1 to 2 hours
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In this activity, learners conduct a waste audit and use their findings to implement a plan for reducing trash.

$5 - $10 per group Ages 8 - 14 1 to 2 hours
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In this activity, learners will estimate how many seeds are in a fruit or vegetable, then count to find out. The result: mix estimation with healthy eating.

1 cent - $1 per group Ages 4 - 14 10 to 30 minutes
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Learners make a counting/estimating jar to exchange with friends or bring home.

1 cent - $1 per student Ages 4 - 14 10 to 30 minutes
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In this activity, learners will play a coin toss game where the highest total wins. Combine coin recognition, addition, and probability with a game learners can play on their own.

1 cent - $1 per group Ages 6 - 14 5 to 10 minutes
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In this activity, learners experiment with gear motion to understand how gears work to change the amount of force, speed, or direction of motion in machines.

$10 - $20 per group Ages 8 - 14 30 to 45 minutes
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In this activity, learners compete to be the first to win twenty counting pieces. First, learners draw patterns on only one side of four craft sticks.

1 cent - $1 per group Ages 4 - 8 10 to 30 minutes
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In this "Sid the Science Kid" activity from Episode 103: Enough With the Seashells!, learners practice estimating numbers of objects (like shells) and then check their estimates by counting.

free Ages 4 - 6 10 to 30 minutes
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In this math activity, learners play two versions of a card game and decide what makes a game fair. Learners also practice addition and subtraction skills.

$1 - $5 per group Ages 8 - 11 10 to 30 minutes
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In this activity, learners play a traditional Mexican game of chance with a twist. Learners take turns spinning a special "Toma Todo" top.

1 cent - $1 per group Ages 4 - 8 10 to 30 minutes
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In this math activity, learners play a card game to practice adding coins quickly, just like a banker. First, learners create coin cards. Next, the cards are dealt to each player.

1 cent - $1 per group Ages 6 - 11 10 to 30 minutes
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In this number puzzle/trick, learner #1 thinks of a number between 1 and 63. Learner #2 shows learner #1 six cards and asks them whether the cards contain their number.

1 cent - $1 per group Ages 14 - 18 5 to 10 minutes
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In this activity, learners practice counting objects found on patterned wrapping paper or fabric.

$1 - $5 per group Ages 4 - 6 5 to 10 minutes
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In this version of a Sumo wrestling bout, players use mathematical skills to move their opponent's counter beyond the track and "out of the ring." Learners reveal playing cards and the player with the

1 cent - $1 per group Ages 6 - 11 5 to 10 minutes
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In this math activity, learners earn "money" by completing simple tasks. Learners complete as many "jobs" as possible in a set amount of time.

1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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In this math activity, learners play a game using their number sense to make the highest or lowest number possible. Use this activity to explore place value and/or decimals.

1 cent - $1 per group Ages 8 - 11 10 to 30 minutes
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In this activity (located on page 2 of the PDF under GPS: Temperate Rain Forest Activity), learners will identify a group of deciduous trees to study.

1 cent - $1 per group Ages 8 - 14 1 to 2 hours
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In this activity learners will investigate magnetic and non-magnetic items in a sensory bottle.

$10 - $20 per group Ages 4 - 6 10 to 30 minutes
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In this math lesson, learners make wallets or purses and then participate in a variety of money-related activities. First, learners make their own paper money and paper wallets or purses.

$10 - $20 per group Ages 4 - 6 1 to 2 hours
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In this full inquiry activity (located on page 3 of the PDF under GPS: Kinetic Sculpture Challenge Activity), groups of learners will make predictions about which feature of a pendulum (mass, length,

1 cent - $1 per group Ages 8 - 14 1 to 2 hours