The abacus is a whole brain development program that activates both left and right hemispheres of a child’s brain, promoting holistic cognitive development. This course is designed for children age 5-11 (starting age) Years. It is because the brain is developing rapidly during this age range, and children have a higher capacity to learn and absorb new information. However, children of any age can benefit from learning abacus if they have an interest in math and want to improve their mental math skills. It’s important to note that the optimal age range may vary depending on the child’s individual abilities and learning style, as well as the specific abacus program being offered.