Please read the following article that details the principles of animation, written / presented by John Lassiter of Pixar/Disney:
Review the following Blender Tutorials:
Bouncing Ball (Stretch and Squash)
Bouncing Ball 2 (youtube)
Soda Can (Anticipation & Stretch and Squash)
Create a simple model of your choice and apply your knowledge of stretch and squash AND anticipation. This model may be anything you want ranging from a simple ball, a more complex ball (such as basketball, or other with segments/seams), a simple model such as the soda can or glass, or even your robot.
Requirements: Please click the tab at the top of the blogspot to see 'rubric'