The jewel in the crown of all matrix games.  The set includes 10 graded games that enhance the ability to group and classify - an essential aspect in the development of intelligence.  Visual correspondence: color, or color and shape in the first number of games.  The properties to be identified become more difficult and abstract as the levels progress.  This set has been developed over a number of years. The accompanying handbook contains this very thorough research. Made in Israel.

1-4 Players.  Ages 5 and up.