Instructional Video
Sophia Learning

Sophia: Average Velocity & Sign Notation: Lesson 1

9th - 10th Standards
This lesson explains how average velocity can be represented by a positive or negative sign. It is 1 of 2 in the series titled "Average Velocity & Sign Notation." [6:44]
Instructional Video
Khan Academy

Khan Academy: Displacement, Velocity and Time: Solving for Time

9th - 10th Standards
A simple example of solving for time given the distance and rate. [9:34]