CheX was invented by George Robertson, a 97 year old computer enthusiast. He developed a paper based version of the game over a two year period with the assistance of his son Glenn. George then...
Over 1,500 questions let you study anytime, anywhere based on your personal needs. It's easy to build your own quizzes, analyze your strengths and weaknesses, and create new quizzes designed to...
Are you a teacher who needs 'book extenders' for your classroom? Or are you an aspiring children's writer who'd like to know the inside scoop on how others got published? Or you're already...
