To introduce the concept of animation, 2nd graders are using pads of paper to create a flip book and animate the illusion of a ball moving and growing across the paper. "How to make a flip book animation" YouTube video by Mr. Otter Art Studio was a great resource to demonstrate how to develop a flip book.
We also looked at examples of flip books that I purchased from an art museum many years ago, published by Fliptomania Inc.
Another great resource for flip book animation is the New York Film Academy student resources website, including a brief overview on the different kinds of flip books still in use today.