- Turtle Programming Instructions (Geometry, Differential Equations, Units of measurement, Metrics, Algorithmic thinking)
- 'Daddy Instructions' Game (outside activity) -> Daddy is the Turtle
- 'Mindstorms' bu Seymour Papert
- Constructionist Play (videos)
- 'How to Code a Sandcastle' book (Algorithmic thinking, sequence, loops, if-then-else statements, modularity)