A. Dice-Set of 2 pcs B. Playing Cards C. Set of Pearls : Set of 400 marbles (ACRYLIC) 50 pcs by arranging small square pieces to make side square (BM-76) Verify and understand the Pythagoras theorem. Students understand the “how” and “why” of the theorem. They place 3 squares besides right angle triangle and discover by themselves that square of the hypotenuse is equal to the sum of the squares of other two sides.