50 secret codes

ISBN: 9780746089125 Categorii: , Product ID: 14563

Descriere


50 secret codes

  • A wonderful set of wipe-clean activity cards for aspiring code-breakers!
  • Includes Semaphore and Morse code, „Grid code” used in the American Civil War, Egyptian hieroglyphics and traditional number replacement and alphabet switching codes.
  • Each card contains information about the code, an explanation of how it works and fun coding activities.
  • Includes a special pen to write on the cards.