The rules of when to apply a comma for the fifth grade standards can be overwhelming. This bundle breaks down the rules and provides lots of practice. Review the rules and practice adding comma to Items in a Series, Direct Address, Tag Questions, and Introductory Elements.
This funny video illustrates a number of problems students face when learning English. The highlighted problems include subject-verb agreement, tag question formation, mixing metaphors, spelling, wrong stress, and small vocabulary. http://esltube.org/2013/03/problems-learning-english/