This file includes three "word libs" for you to put in writing centers. They ask students to fill in various nouns, adjectives, verbs, and other parts of speech. The students can then work individually or in groups to look up the words in the dictionary to check their spelling and to make sure they wrote down the right part of speech. It is self-checking in this way, but you could also have them turn it in for a grade.
There are only three there currently, but I plan on adding more as the year progresses. If you have any ideas for me, please let me know in the questions and answers section!