I feel bad for giving such a low rating because he's a nice person, but he's not the best lecturer. If you take his 6B class, be ready to learn on your own, which is possible these days with khan academy and such. He's ready to help though if you need it.

You can't read anything he writes at all and he doesn't go into details or explanations and he will correct himself at the end of an example problem so your notes are all wrong, choose a different professoe.

Never take his course! Terrible handwriting. Confusing exam and homework. U would never know what he wants u do! I decide to acquire for F and retake this course. PLZ never take his course!!!!!!!!!!

Andres is by far the WORST professor I have ever had. I wish I dropped this course. His handwriting is the most undecipherable thing. He would mention something once then give the hardest test on it. If you care about your sanity, mental health, and gpa, you should not take any class with him. He barely understands the material himself