Needs Audio
Are the videos supposed to be silent? Also, please remove Bens comment about the Teachers Union. Poor teaching has everything to do with a persons ability to connect with other people; political or social affiliation are irrelevant. Though Im sure K.A. loves the praise, it loses value when it is earned at others expense. Youre clearly conservative, go back to your faith to find forgiveness and release the hate passively before vomiting information just to hear yourself speak.
dr. chacon about
Khan Academy: Trigonometry, v1.0.1