Go to www.PHSchool.com for online videos and practices tests and quizzes. There are webcodes in every section where the "Exercises" are. It wil say "Go Online. Homework Video Tutor"
Web code: aue:0705
This will send you to online videos that you can watch if you are absent, if I am absent, or if you just need some extra explanation.
There will also be a web code for Online lesson quiz, for example, web code: aua-0705 will take you to a practice quiz in Ch 7 Lesson 5.
There are no web codes for the practice chapter tests.