What is the best learning age for abacus?
According to the analysis of the research on neuroscience, the growth of nervous tissues begin from 4 to 6 years old with the fastest speed and nervous tissue growth or liaison net reaches upto 90% making up 86% of the adult brain during this period the frequency of brain wave increases gradually from theta to alpha and then beta. children in the alpha level have sensitive period of thinking in their visual receptivity, aural recognition of sound and flexibility of finger muscles., full of imagination and quicker learning ability.