answer for questions 1:
The Types of Things that TFs Often Do to Prepare for Class
Do the reading and problem sets.
Take notes on the material.
Review lecture notes for the week.
Prepare an outline of issues to cover in class.
Make a list of questions to use in class or write on the board.
Make a handout of topics to discuss in class.
Answer for questions 2:
Active reading simply means reading something with a determination to understand and evaluate it for its relevance to your needs.