Improving Test Grades

I am trying to use castlelearning.com to help improve my test grades in class. I decided for this next unit I would give students a review assignment for the test a week in advance and spend some class time giving them a chance to start it. So, I am giving my class 30 minutes today in the library to work on the Quadratic review assignment. Hopefully this works because I only had 10 students pass the 2nd marking period, down from 19 in the first marking period.