Check this website out for extra credit ELA practice. 

http://lumoslearning.com/llwp/resources/common-core-parcc-practice-tests-and-sample-questions/practice-test.html?btn=start&cur=550&id=7391

Try this site to practice with grammar and punctuation.

http://www.sheppardsoftware.com/web_games_vocab.htm

Check out the Dictionary skills, Parts of Speech and Figurative Language activities.

http://www.gamequarium.com/languagearts.htm