The Canadian experimental filmmaker breaks it down. These are terrific technical explanations.
Part 1:
Animated Motion Part. 1 - Norman McLaren / Grant Munro from Juan Pascual Sgró on Vimeo.
Part 2: Motion and Tempo - GOOD one.
Part 3: Zero motion
Part 4: Composite Motion --another good one!
Part 5: Change--in color, light, texture, etc.