For your personal use (e.g., to avoid carrying the book), yes – that is a “format shift.” For distribution to other parents or students, no – that is copyright infringement. Never upload your scan to the internet.
Unlike adult textbooks which rely heavily on text, Planetino 2 uses a layout tailored to children. The pages are colorful and illustrated with cartoon characters (the "Planetinos"), keeping the visual engagement high. Instructions are kept simple and often use icons to support understanding. Planetino 2 Arbeitsbuch.pdf