Concept guide is UP for Chapter 5, Gravitation.

The Learning Module for Week 4 is now up and running. It has

1. concept guide for chapter 5
2. mini-quiz
3. writing assignment which will appear when you snag 18 points or more on the mini-quiz
4. and a new Flash file with audio of some extra practice with subtracting vectors
5. plus a PDF version of the same file, with narration notes instead of audio.