4. IMAGINE

5. You are back in your undergraduate physics course

8. You hate physics

10. And you don’t understand what the professor is talking about

12. Everyone else understands

13. The professor is scary

15. You are the only one in class who DOESN'T GET IT

16. What if…

17. You were able to ask for help

18. Anonymously

19. You would not have to interrupt the professor

20. You could learn from other students

21. You could access websites, pass around links, and share knowledge

22. You could other students learn from

23. 22 UC Berkeley :: School of Information :: Masters Final Project June 15, 2015 ClassChat A Tool for Visualizing Backchannel Discussions

24. 23 Can someone please explain this equation to me? I am confused. α is the angular acceleration and the second line above uses the fact that the angular acceleration of all points in a rigid body is the same this link helped me - http://www.physics.uoguelph.ca/tutorials/shm/velocity.html that helps… thanks!

25. 24 Can someone please explain this equation to me? I am confused. α is the angular acceleration and the second line above uses the fact that the angular acceleration of all points in a rigid body is the same this link helped me - http://www.physics.uoguelph.ca/tutorials/shm/velocity.html that helps… thanks!

27. IMAGINE

28. 27 Tomorrow 11:30 am Room 205