Here below is a video demonstrating and explaining constant velocity. In the video they have a diagram that is to help show the information that is given and as well as show us change. In the video they also go over how to graph on the diagram and how to label it.
The video below demonstrates what acceleration is and how it is used. The video also has a definition of what acceleration is – “acceleration is the rate at which velocity changes in a period of time”. The video uses an a truck speeds for example, and talks about how its speed. Then, they show us how to find the final answer in acceleration by dividing the change in velocity.