Is your 100th day of school approaching? I'm always looking for a way to combine our special school events with learning goals. This is a quick and easy booklet for students to categorize and write 100 words they know. You can do 10 words a day for 10 days, or write them all on the same day. It works for a whole class activity as well as an independent center time task. I've also included a blank page so you can make your own categories--or have your students think of them for you!