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Mistakes That Worked
Item Number: 4403
This book is offered in Original or Unified English Braille.
What is Original Braille?
What is Unified English Braille?
Canadian Shoppers:
Please note that your books may ship with orange plastic covers
Please note that your books may ship with orange plastic covers
Product Features
- Package Weight: about 1.6 pounds.
Product Description
Sometimes "mistakes" are the mother of invention. Take 3M's Post-It Notes for instance, or chocolate-chip cookies, popsicles, and X-rays. This engaging book presents the stories behind forty things that were invented or named by accident, including aspirin, frisbees, silly putty, and velcro.For ages 9 to 12.
