A British woman of Indian heritage thought a bit of ancient instruction might help her son tackle a modern problem.

Growing up in India, a young Dr. Rashmi Mantri used an abacus to help her visually comprehend mathematics. After noticing her son Dhruv was struggling with math, she started employing that same ancient tool to help him after school.

In just six days he started to show progress with the abacus and would go on to become a regular whizz kid with numbers, with even his classmates' parents reaching out for help.