Maze without limits with straws and clothespins

Jorge Lobo, teacher at CEIP Lope de Vega school in Madrid, proposes an interesting way of building mazes with barriers made of straws and clothespins.

The maze challenge consists in programming the Escornabot in order to cross the maze and don't crash with the walls. One error will cause the building destruction by the bug. Fortunatly, these barriers are recyclable.

Barriers with straws and clothespins

The original post is here (in Spanish):