Provides instructions for using codes to send secret messages, and hints for keeping your enemy stumped. Includes a story written in code. Suggested level: primary, intermediate.
Also, there is a cut-out rotation template that is provided to make your very own cipher disk! After reading this book, you will have all the basic tools needed to create secret messages.
Paperback edition of a successful card pack format, that will unleash the inner code-breaker in all of us!
... Eileen O'Brien and Diana Riddell Designed by Non Figg Edited by Fiona Watt and Cheryl Evans Illustrated by Mark Watkinson Photographs by Howard Allman Contents Secret codes Letter swap code Pigpen code Snail code Calendar code ...
Cipher and decipher codes: transposition and polyalphabetical ciphers, famous codes, typewriter and telephone codes, codes that use playing cards, knots, and swizzle sticks . . . even invisible writing and sending messages through space. 45 ...
Kids love secret codes, and this book offers dozens of intriguing challenges with insights into U.S. history, geography, pop culture, and a host of other subjects.
"Discusses different methods for creating secret codes"--Provided by publisher.
Presents a variety of codes and ciphers and includes messages to encode and decode
A coding adventure about a brilliant inventor and her runaway robot, Rox's Secret Code aims to inspire the next generation of female leaders in STEM!
Looks at historic and modern spoken codes and secret languages, from simple substitution codes, to the Navajo language based code used against the Japanese in World War Two.
Explains various methods used in cryptography and presents examples to help readers in breaking secret codes