By Ann D
•Jan 30, 2017
Shame on you University of Houston System
I did the first three lessons, which are less than average, then went on to quiz 1, after completion, a window appeared to ask me for money to get my results! This information should have been provided when I enrolled! I find that very mis leading.
By Siddharth K
•May 1, 2016
Great review for the AP Physics 1 exam!
By Nakul S
•Jul 15, 2017
Helped me sooooo much!!! Great for high school physics.
By li w
•May 15, 2016
nicenice
By Samir A
•Dec 18, 2016
amazing
By HowardZhou
•Mar 15, 2016
Too much question and it takes me too much time on it
By Lane W
•Aug 14, 2017
There are few mistakes in the video.
By Aidan H
•Oct 30, 2016
Some content on quizzes wasn't covered in the videos