Pre-Algebra A Teaching Textbook

1.Automated grading 2.A digital gradebook that can manage multiple student accounts and be easily edited by a parent 3.Over a dozen more lessons and hundreds of new problems and solutions 4.Interactive lectures 5.Hints and second chance options for many problems 6.Animated buddies to cheer the student on 7.Reference numbers for each problem so students and parents can see where a problem was first introduced 8.An index 9.Detailed appendices