Instructional Video3:14
Curated Video

India and Negative Numbers

6th - 12th
Discover when and why negative numbers were developed, and the simple rules that govern their use. Maths - History Of Maths A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show...
Instructional Video
Crash Course

Crash Course History of Science #4: India

9th - 10th
You might recognize the names of some of the Greek philosophers, but they weren't the only people making knowledge in ancient times. This Crash Course video discusses Indian contributions to philosophy, math, medicine, and astronomy....