This stage is fairly simple. Aim Yoda downward and follow the half circle curve. You just want a simple bounce for Yoda to destroy the wooden pieces. The hard part is to get the pieces to fall correctly so you destroy enough to get the three star rating.
Power Activation Point
Activate the Yoda power as you are about to hit the ground.
First Shot Result
Yoda hits the wooden structure, killing the pigs and you get the three star rating.