I made this presentation to help introduce/reinforce the concept of rounding to my students. There are 9 slides in the presentation, and it walks students through what is rounding and how to round. Much of the show is based on a rounding example where students explore rounding a number to different places. The show features motion and has built-in stopping points to allow for discussion. What you see in the screenshots will not all display at once when you play the show. It ends with several rounding practice problems.