Perception visuelle
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+ Design with your own assignments + Step-by-step didactics + 16 wooden cubes >...
+ Training spatial insight + 70 problems + Increasing degree of difficulty >...
+ Challenging game + Stimulates spatial orientation + Additional map sets available>...
+ Three dimensions + Learning spatial orientation + Educational >...
+ Puzzle pieces + Similar to Tangram + 68 puzzle pieces in 4 colors >...
+ Also for adults + 8 identical blocks + 48 building plans >...