Our Mental Calculation program teaches students as young as three or four years old how to use an abacus to perform calculations. The prerequisites for this course include the ability to write their numbers from one through ten and the ability to endure a 50 minute class. Their cognitive skills will develop, and the next step will be to perform increasingly complex calculations by mentally visualizing the abacus. This method allows the students to increase their understanding of numbers and the flexibility that mathematics can provide. The abacus method also helps students improve their numerical memory and math reasoning abilities.