This is a very basic introduction to Tip-to-Tail Vector Addition using a motorized toy car that I made.  Also included is an introduction to Vectors and Scalars, their definitions and some variable examples of Vectors and Scalars.

Content Times:
0:11 Slow Velocity Racer!
0:48 Determining the speed of Slow Velocity Racer!
1:55 Which track for Slow Velocity Racer to move the fastest?
2:54 How fast will Slow Velocity Racer move between the two tracks?
3:18 How fast will Slow Velocity Racer move on the top track?
4:03 Tip-to-Tail Vector Addition
5:45 Defining Vectors
6:15 Defining Scalars
6:38 Variable Examples of Vectors
7:02 Variable Examples of Scalars
7:28 Montage of Examples of Scalars
8:18 Defining Magnitude
9:20 Scalars can be negative
9:56 The Review

Please check out Amy Hassinger's website.  (my author cousin)