Ryan was an encouraging, clear, kind, and incredible teacher. I worked with him for the second half of Differential Calculus (UBC Math 100) after having struggled with the first half of the course. Ryan enabled me to understand not only the concepts in Math 100, but also useful methods for approaching calculus problems in general. He was a very adaptable teacher, and he always ensured that we focused on the areas of the course that I found to be the most difficult. I am so grateful to have had the opportunity to work with Ryan, and I would definitely recommend him to anyone studying math!