If you don't like this professors explanations I recommend you to watch the Thinkwell calculus videos. Unfortunately they are not free, but I have never seen such a intuitive, simple and funny explanation of calculus that will help you to really understand the concepts =)####[['professors', 'Instructor', 'POS'], ['calculus', 'Mathematical_Related_Concept', 'POS'], ['explanations', 'Teaching_Setup', 'POS']]