Glencoe is the publisher of our Common Core Algebra 1, Geometry and Algebra 2 textbooks.  The online resources that accompany this textbook series are extremely powerful whereby providing ALL of the following for each course:
Personal Tutor                     Electronic Tool Kit
Videos                                 Practice Worksheets
Glossary                              Geometer's Sketchpad 
Self-Check Quizzes
You can login at ConnectEd or under the "Students" tab.
Here is a GUIDE that explains the resources available in ConnectEd. 
Here is quick video on how to view the content available for students. 
Click this help link for student user guide's.