I shot the video from a Flip cam mounted to a tripod. I exported the video at 15 fps (I think) to jpg images, which I imported into Photoshop, where I masked out everything but the basketballs and the birds in each frame. In the final frame, I also included myself chasing the ball.

That’s it. These skills are difficult at first but they become very very easy. I realize hardware and software are expensive but I highly recommend the Adobe Creative Suite to math teachers. An ability to use Photoshop and AfterEffects to manipulate images and video has made a much better math teacher out of me. It’s made the job more fun also.