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What's the Difference?
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In this sorting activity, learners play a game in which they try to identify the largest number of differences between two objects.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-943.jpg?itok=bVPNX-LN)
Calendarios para cualquier año
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Este Web site contiene links a 12 calendarios (12 meses). Cada mes contiene actividades sobre matemáticas.
How Many In a Minute
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In this activity, learners will keep track of how much they can do in one minute. Instructors can pick something everyone will do for a minute, such as jumping up and down or drawing stars.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-447.jpg?itok=Pq2Aw5Ny)
The Gator Pie Game
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In this activity, learners explore fractions as they help gators share pies.
Frustrations with Fractions
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In this math activity, learners make a set of fraction cards to play a game that will help relieve their fraction frustrations.
Piece It Together: Puzzle Hunt
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In this activity, learners follow clues to find five puzzle pieces, then assemble them. This activity works well with a whole group, individuals, or families.
Mystery Jars: Estimate Contents
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This activity puts a mathematical twist on the familiar “guessing jar.” No guesses allowed, estimates only.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-528.png?itok=HW8YAUAB)
Memory Match
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In this classic memory game (on pages 37-45 of PDF), learners turn over tiles to reveal images on the back.
Size Them Up: Learning About Volume and Capacity
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In this activity, learners will put a set of containers in order by capacity. Would the tallest container hold more or less water than the wide, short one?
Mystery Jars: Make Your Own: Estimating and Counting
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Learners make a counting/estimating jar to exchange with friends or bring home.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-333.gif?itok=m1XW72JR)
Motor Learning
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In this activity (26th on the page), learners construct an easy-to-build device and test motor learning.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-518.jpg?itok=k-dsL4sH)
Exploring Size: Powers of Ten
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In this activity, learners play a card game that explores the relative sizes of various objects. Learners compete to organize their hand of cards into lists of objects from largest to smallest.
Any Year Calendars
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This PDF contains 12 calendars (12 months). Each month contains activities about math. Things to do on familiar holidays (like July 4), less common holidays (like Backward Day), and any day.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-519.jpg?itok=xQqJetZ3)
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.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-545.png?itok=XaJ71nUc)
Big Bubbles
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How do you measure a bubble when it's floating? You can't really, but in this activity, learners can measure the diameter of the ring of suds a bubble leaves on a flat surface.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-681.jpg?itok=cBJEouSB)
Estimation
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In this online activity, learners will explore size estimation in one, two and three dimensions. Multiple levels of difficulty allow for progressive skill improvement.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-781.png?itok=cr9RwBhD)
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.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-769.jpg?itok=N74UqfZ-)
Tug-of-War
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This activity (on page 2 of the PDF under SciGirls Activity: Tug O' War) is a full inquiry investigation into tug-of-war physics. Groups of learners will test two tug-of-war strategies.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-730.png?itok=b-soPRD-)
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.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-830.png?itok=jqd0vYid)
Great Steamboat Race
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In this outdoor activity, learners race small boats, made of cork, balsa wood, popsicle sticks etc., to investigate the rate and direction of currents in a stream or creek.