This tutorial shows how objects move between keyframes by five different types of interpolation:
translation, rotation, scale, reflection, and inversion.
This video shows all the steps in creating an animation,
from setting up the key frames,
to creating the tweens and exporting the animation as a movie.
This tutorial shows how you can rotate several objects in a single operation.
It rotates a "slab" of cublets as a unit about a single point and axis.
This tutorial shows the basic steps required to make two gears rotate at the appropriate speed so they mesh properly.