Always Always Always ALWAYS ALWays Always avoid this professor. Always avoid this professor. I can't emphasize enough how important to not take his class and save your GPA. This professor has HORRIBLE and RIDICULOUS grading policy.

First of all, he does not curve the score. You may say, not curving the score is not that bad right? Trust me, not for this professor. I have taken some lectures from other professors who do not curve the score, but they try to make their tests fair and make the average around 80. For Ouellette, lol, the average for the first two midterms is around 65. The average for the final is 66, but he DOES NOT CURVE the fucking score, which means almost half of the class will fail.
The worst thing is not only his grading policy, but his TA (Eric Prizomic, do remember him) . This TA does not know anything about Math. I went to his office hour once and asked about homework problems, he can't explain shit. During discussion, he even asked students for help because he didn't know how to solve the problem. And his discussion is a complete waste of time. This TA is also EXTREMELY strict on grading homework and exam problems. The only thing he knows is to follow the solutions he did himself, and if anything on your homework is different from his solution he will take points off.

131A is one of the most difficult classes among upper math classes. It is a class about proving, which means on your exam and your homework, it is hard for us to give a perfect proof during exam. They can take off points anywhere they like.
Making his students get low score seems please this professor and his horrible TA. Taking this professor's class is one of the worst decisions I have ever made during my life. Try to avoid this professor.