##### Siet T.

1 Combinatorics lesson

He helped my daughter with **Combinatorics** (a 400 level Math course at City University of New York, Baruch College). My daughter is a Math major and we had great difficulty finding a tutor who is capable in tutoring **Combinatorics**, a branch of Discrete Mathematics. We were very fortunate to find Nathan. His excellent tutoring resulted in her achieving an A for her course. He is well prepared and incredibly well versed in the subject. My daughter really enjoyed working with him.

##### Aashray K.

5 Combinatorics lessons

Complex proofs or **combinatorics** just seemed out of reach to me, and I didn't think that hearing someone else figure it out would do me much good. However, Raphael approached problems in a way that didn't just teach me the material at hand. More than that he showed me the patterns that existed within questions, so I was able to take what I learned with a single example and apply it more broadly to the rest of the course. More than anything though, our session never felt like a lecture.

##### Sam E.

22 Combinatorics lessons

Ryan is a true expert in discrete math. His specialty is **combinatorics** and that's where I need the most help. I often feel bad about not understanding something but Ryan makes me feel good. He's very empathetic, and will go over what puzzles you in different ways for as long as it takes until you understand it. He also will help me understand why the (incredibly complicated) math I am learning is useful in the real – which helps keep me motivated.