• Juni 20 2019

    Graduation to the next level of Abacus:

    0

    Seven children of the MMH graduated to the next level of Abacus.

    Abacus is also called a counting frame, it is a calculating tool that was in use in Europe, China and Russia. The exact origin of the abacus is still unknown. Today, abacuses are often constructed as a bamboo  frame with beads sliding on wires, but originally…