This lesson demonstrates how an object can be rotated in space and on a coordinate plane about different points. It is 5 of 5 in the series titled "Rotating On a Coordinate Plane."

This lesson introduces the concept of secant lines. It is 2 of 5 in the series titled "Secant Lines."

This lesson introduces the concept of secant lines. It is 1 of 5 in the series titled "Secant Lines."

Physics video lecture (1:16:39) that uses football to illustrate physics principles.