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Mathamusements - Tapa dura

Blum, Raymond

 
9780806997834: Mathamusements

Sinopsis

This collection of tricks, puzzles, memory tests and other experiments seeks to show that maths can be amusing. All that is needed is a pencil, a piece of paper and a few things that should be found around the house.

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Reseña del editor

These tricks, puzzles, memory tests, and other experiments will get you started. All you need is a pencil, a piece of paper, and a few supplies handy around the house. Guess your friend's secret number. Balancing Act shows how you draw half a painting, and the paper creates the other half. Cricket thermometer tells the correct time by counting the number of times a cricket chirps in 15 seconds. Or try the other dozens of fun challenges. Draw special straight lines that turn into circles. Get your Favorite Number to show up on a calculator every time. Try Zooming - taking a favorite cartoon and enlarging it with just pencil and paper. Grab this book and you'll be ready to have fun with numbers.

Reseña del editor

There's magic in math, and you can find it with these tantalizing tricks, dazzling designs, perplexing puzzles, marvelous memory maneuvers, and other experiments that will give you a nose for numbers. Just open the book and pick a game. The instructions are clear and easy to read, and you need only supplies you can find at home or school. It's as easy as ABC! Abracadabra card tricks let you guess your friend's secret number. Balancing Act paintings show how you draw half, and the paper creates the other half. Cricket Thermometer tells the correct time just by counting the number of times a cricket chirps in 15 seconds. It's as mysterious as XYZ: X-tra Special straight lines you draw that turn into circles; Your Favorite Number that always shows up on a calculator after a complicated computation; and Zooming -- how to draw a cartoon and enlarge it with just pencil and paper. Complete with fun illustrations and an answer key that explains both the whats and the whys.

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