The Yellow Prisms for Volume introduces the concept of measuring the space inside a three-dimensional figure in a very visual way. The set includes five yellow wooden prisms each measuring 20 cm x 10 cm x 2 cm, with markings to demonstrate how they can be divided into progressively smaller measurable units and then counted. The prisms come in a special wooden box with one removable panel to better comprehend the idea of volume. This material can be used together with the Wooden Cubes for Volume to further establish the idea of breaking a larger volume down into smaller units. The box measures 22 cm x 12 cm x 11 cm.
All Gonzagarredi products are approved by the Association Montessori Internationale (AMI).