The manual supports the textbook's modular structure, which consists of . Each module follows a consistent pattern to build familiarity:

Three to four lessons (2–4 pages each) focused on primary skills.

Planetino is a popular German language textbook series used in many schools and language institutes around the world. The series is designed for children and young adults, aiming to help them learn German in a fun and engaging way. Planetino 1 is the first level in the series, targeting beginners who want to learn the basics of the German language.