Review Videos:  

Watch these short videos to review before you retake the checkpoint.  

Computer Practice

Practice Worksheet:

Print and complete these self-correcting worksheets for extra practice

Quiz

Now that you have studied this concept try the practice quiz.  If you score 80% or higher you should be able to retake the checkpoint.  This will increase your class grade.  You may only retake the checkpoint ONCE so make sure you are ready!