Teachers write different sentences on 5 different colored sentence strips, cut them up, and mix them up. Students pick a set of colored words/one of the sentences, unscramble it, color in the bubble next to the sentence, and record it on the line next to the colored bubble. Easy way to check on who is able to figure out sentence structure, read popcorn words, and decode simple words. Also a quick way to check on spacing, capital/lowercase letter usage, and ending punctuation. Makes a wonderful and simple guided reading center addition. My kids love this activity as well!
Check out this blog post for further information about using this as an activity: http://growlittlekindergarden.blogspot.com/2014/05/3-simple-writing-center-ideas-for.html