Just need 2 things to learn https://youtu.be/1As8_P1JyF8?t=14s
Do it yourself...and be confused forever http://youtu.be/ThJmDE6fA9c?t=14s
^Ex.1/ 00:14 solo 1
Ex.2/ 05:55 solo 2
Ex.3/ 01:18 topic
Whose fault is...? (student or teacher)
https://youtu.be/zk9e8aTLqI4?t=14s
