This book is an essential, enduring, practical guide for every K-12 teacher anywhere who is either teaching or planning to teach computer science and programming at any grade level. Coding teaches our students the essence of logical thinking and problem solving while also preparing them for a world in which computing is becoming increasingly pervasive. While there’s excitement and enthusiasm about programming becoming an intrinsic part of K-12 curricula the world over, there’s also a growing and crucial need to prepare teachers to teach effectively at all grade levels.