Contigloo is a game to introduce the notions of "more" and "less". The cards give instructions, and the right number of pieces are gradually placed on the board. The backs of the cards reveal the solution in pictures! A self-correcting game thanks to the picture answer on the back of the cards. Easy to handle thanks to the chunky pieces that stand upright and the slot in the game stand. Children perform addition and subtraction from 1 to 5.