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Arctic Story Puzzles
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This activity has three story puzzles learners can solve to learn about life in the Arctic.

Factors and Multiples Puzzle
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This puzzle provides an interesting context which challenges learners to apply their knowledge of the properties of numbers.

Six Holes of Arachnipod Crossing
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In this Cyberchase activity, learners use the numbers one through six to solve a puzzle.

Guesswork
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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.

Tangram Challenge
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In this activity, learners use tangrams ( 7-piece puzzle tiles) to assemble a variety of shapes. Tangrams are ideal for improving spatial reasoning and geometry properties.
Magic Turtle Squares
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In this math activity, learners create a magic turtle where all the rows, columns and diagonals add up to fifteen.

Paperfolding Polyhedrons
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In this activity (on pages 55-66 of PDF), learners fold paper into origami shapes and then combine several identical shapes into a three-dimensional structure.

100 Puzzles
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In this activity, learners find as many combinations of a hundred as they can using various puzzle pieces from a hundred square grid paper.