Made of plastic big sized transparent geo models, shows the height, the slant height and bilaterals consists of:
– Pyramida shows the plain section
– Cone with plain section
– Sphere shows the spherical dome smaller than the half sphere, shows the height, radius and the radius of the base.
– Kept in an appropriate box.
To indicate the numerical position of the number and mechanism of addition and substraction, used for the measurement and comparison and used to each decimal system, area and volume. Consists of sets of colored cubes inlcude:
1 Thousands – 20 hundreds – 20 tens – 200 units with different colors.