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Cats and Canaries
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In this math puzzle game, learners work together to use algebraic reasoning and fun clues for solving word puzzles.

Number Systems and Number Theory: Factor Game
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In this math lesson, learners play a game to identify the properties of prime, composite, abundant, deficient and perfect numbers.

Measurement: How Many Noses Are in Your Arm?
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In this math lesson, learners apply the concepts of ratio and proportion to determine the length of the Statue of Liberty's torch-bearing arm.

Patterns and Functions: Fill 'er Up
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In this math lesson, learners predict, interpret, and sketch graphs of functions related to the shapes of bottles. A measure of water is poured into a container.
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.

Probability: Remove One
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In this math lesson, learners are given 15 chips and a number line labeled from 2-12.

Measurement: Million Dollar Giveaway
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In this math lesson, learners apply measurement skills to determine, in dollar bills, the capacity of a suitcase.

Geometry: Let's Face It
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In this math lesson, learners identify, describe, and construct the five regular polyhedra.

Pico Cricket Compass
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Learners can program a compass to draw a circle by itself using a Pico Cricket, some Legos, and lots of tape! Pico Cricket is required.

Up, Up, and Away
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In this math lesson, learners explore the real world meaning of slope. Learners conduct a balloon experiment in which they measure the circumference and flight time of deflating balloons.

Incredible Shrinking Shapes
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In this activity, learners get hands-on experience with ratios and scaling while making their own jewelry out of recycled plastic containers.

Geometry: Tiling the Plaza
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In this math lesson, learners arrange pattern blocks to create tessellations and to explore geometric patterns. Learners first explore making patterns with a variety of pattern blocks.

Statistics: Wet Heads
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In this math lesson, learners learn how to construct stem and leaf plots. Learners first estimate the number of drops of water that will fit on the head of a penny.

Computation and Estimation: Roll Out The Barrel
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In this math lesson, learners apply mathematical modeling to solve a real-world storage problem, in which a manufacturing company is given two options for storing oil barrels.

Probability: Rock Around The Clock
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In this math lesson, learners apply the Monte Carlo method of simulation to determine a reasonable estimate.

Drip, Drop, Drip, Drop
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In this math lesson, learners design an experiment to model a leaky faucet and determine the amount of water wasted due to the leak.

Statistics: Something Fishy
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In this math lesson, learners apply the concepts of ratio and proportion to the capture-recapture statistical procedure.

Sustainable Grazing
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In this activity, learners investigate the food, water, and space needs of common livestock animals.

Building an Army
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In this activity, learners explore the potential of interchangeable standard parts to create a large number of unique creations in different combinations.

Hold a Hill
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In this outdoor activity, learners investigate the relationship between the slope of a trail and soil erosion.