MASTERMIND ABACUS PROGRAM IMPROVES YOUR CHILD'S MENTAL MATH AND OVERALL ACADEMIC PERFORMANCE Nurture a Love for Math with Mastermind's Interactive Abacus Classes & Training It is scientifically proven that Abacus training boosts brainpower along with strengthening math skills in children aged 6-14 years. Mastermind Abacus Classes have a proven track record of fostering math skills and promoting Wh