Before starting with the first units, it is necessary to check the level and previous knowledge of the students in the project. To do this, some forms are created for each student to fill in. In the same way, a form for teachers is also created. In this way, we will have some data on which to start preparing the units and consolidating knowledge. The next step is for each partner to start with their students to take a series of CODE.org courses that we recommend to them. In doing so, the students will begin to improve their programming skills. Finally, we are sending you a first steps guide to App Inventor. With this basic guide, teachers can begin to understand how App Inventor works and thus be prepared for the first units.