Curated Video
Can You Solve George Washington's Math Homework? (And Abraham Lincoln's Too)
Today politicians do not much about mathematics. But interestingly George Washington and Abraham Lincoln both understood the value of mathematics. And amazingly manuscripts of their homework have survived and been preserved for hundreds...
Curated Video
Lattice Multiplication Explained - Math Animation
Lattice multiplication is a fast and easy way to multiply numbers and even polynomials. You write the digits of one number as different columns and the digits of the other number as different rows. Then you multiply the digits in the...
Curated Video
Multiply By Lines: Why It Works
This video explains why multiplying by lines works mathematically, starting from basic examples and building up to two digit multiplication. The summary is that multiplying by lines is a shorthand to count hundreds and thousands of dots...