What do the speed, velocity, and acceleration show?

The speed shows the distance an object travels at a given time. And is calculated using: Speed = Distance / Time. The velocity shows the speed of an object in a given direction e.g. an object travels at 20m per second, South. And the velocity is calculated with the same equation used for speed, although the direction is also stated e.g. 1.25m/s South. The acceleration shows the change in the velocity of an object over a given time. And acceleration (m/s^2) = change in velocity (m/s) / time (s), where the direction is also stated.