100-Day Mental Math Challenge

In 2015, Master Lee and her students participated in the 100-Day Mental Math Challenge for a South Korean television program. In the video linked below, Lee trains a group of easily distracted students ages 6-10 for 100 days straight! Watch these kids take on a group of Harvard students armed with calculators.

Master Lee, of Tactile Brain, trains a group of easily distracted kids ages 6-10 for 100 days, in a South Korean TV mental math challenge. Watch as the kids take on a group of Harvard students armed with calculators!
Vladislav Tsoy