University of California, San Diego

• "He was very aware of the material and explained it well and concise."

• "He takes time to go over each subject in great detail to make sure we never miss anything. He is engaging and never pressures us to know each subject which puts less stress within the class environment which is nice and it allows me to learn without being anxious."

• "I've never had such an informative discussion section before. Joon did a great job giving more depth to the material and explaining it in easily understandable ways. His mini-lectures were probably the main reason I passed the class."

• "Was enthusiastic about teaching, challenged our preconceived notions, gave technical and thorough explanations"

• "I have a lot of respect for this TA since he covered a lot of topics our professor didn't go over in the lecture, and he took time to catch us up and go over all the topics (which was a lot). He made sure to help us achieve as much as we can to the best of his abilities and it means a lot that he dedicates himself a lot to his students. Overall, he's a really good TA :)"