Class 7, WebGL: Progressing With PlayCanvas

Basic key board input:
This alows you to control the box using the arrow keys

 I first created a box

 then I added the script to the object

 then I pressed play but I could not get the box to move

Basic mouse input:
This allows you to control an object using the mouse

 I added the script and tried to make the sphere move

 However I could not get the sphere to move

Basic Camera
I read the tutorial but don't have any idea how to do it