I have some words to say about this week topics in class. For some reason, i had a very difficult time understanding Externalities. Its is one of those topics that you think you understand but at the end you dont. I didnt get a good grip of it at the beggining and just never managed to understand it. On the other hand, I think that the assessment assignments helped alot, since it gave us the opportunity to really understand our own work. In my case, i decided to make an essay questions to evaluate what my students learned. I believe that essay questions really put people on the spot and will show how much or little someone knows about a subject. That is why i decided to make an essay question. The assessments that I have graded from other students in the class have been really good, since they make the student think about what they did and what they learned. the only thing i have left know is the book review. It is a beautiful day today, why not enjoy it reading a good economic's book.