This week has been so far a pretty difficult week. I've had a lot of problems with the U substitution and chain rule. I like the concepts but they are hard to follow. So far this has been my first real trouble with the concepts this year. Even though I am studying I fear for the quiz tomorrow. I don’t think that I will do well on it given how hard the concepts were for me this week. I hope that I study enough to be adequately prepared to take the quiz tomorrow. The Ted talk this week was pretty interesting.. I looked ahead in the chapter and it seems to get easier from here. This seems to be a massive chapter. I just can’t wait to get it over with. I get some of the concepts. I am getting better with implicit differentiation. Today I was finally able to figure it out. With u substitution it is still pretty difficult. I think I got most of the major concepts with that, but the application is still pretty difficult for me. The chain rule is also pretty hard for me . I am slowly starting to understand it, but it still remains as one of the hardest concepts this chapter. I got my quiz back. I can say I did about as well as I expected. I am happy with the score I got and am glad that this might offset some of the worse quiz grades. Friday will be an interesting day I hope that I end up doing better than I expected on the quiz. I hope that by the end of tonight that I figure some of the concepts out. Overall this has been a pretty hard week. I hope that the next one is easier.