A single notebook for cycle 4 , structured into three levels for 5th, 4th and 3rd grade classes . - In each level, progressive exercises to work on algorithms with the Scratch software on the computer but also unplugged. - Activities to get started in order to get to grips with the Scratch software and others at the end of each level To go further in order to adapt to the progress of the students. - A simple structure, a clear model with fun and progressive content . - Numerous exercises and activities to practice and a file to prepare for the patent test .