Optical Illusion Play Pack

These optical illusions have more magic than any others! That's because this fun and visually enticing pack gives kids something special: The opportunity to "play "with the images, not just "look" at them. It's created by the much-respected and prolific author Martin Gardner, who wrote the "Mathematical Games" column in "Scientific American" for more than a quarter of a century. Gardner's numerous puzzle collections, as well as his expert writing on math and science, have made him a force to be reckoned with in the field. Packaged right inside the book are lots of punch-out cards that will enhance every illusion...plus a vinyl pouch for safely storing the cards afterwards. So when children try to figure out if the two differently shaped tables in a picture are actually the same size, they can see whether they're right by laying a "checkered tablecloth" over them both. Or they can pin a colorful rainbow disk to the page, spin it, and watch the colors "disappear." Each illusion gets an entire spread, with instructions, extra illustrations, and sometimes sidebars, too.Gardner, Martin is the author of 'Optical Illusion Play Pack ', published 2007 under ISBN 9781402733383 and ISBN 1402733380.