[sp23] mentor07: Data Abstraction, ADTs, and Immutable Trees

[canoepus]

General Feedback

• Questions were generally digestible. Not too hard, not too easy.
• Students struggled generally with a few questions.
• Add more easy immutable tree questions for warm-up!

Q1: Selectors

• No feedback.

Q2: Are_friends

• No feedback.

Q3: Cross_type_friends

• Best question when it comes to implementing abstraction barrier-based questions.

Q4: Different implementation of constructor

• The solution given is really unintuitive. Just add a dictionary lol -- function name and problem hint at dictionary.
• +1 on lack of intuition with solution.

Q5: Replace_x

• Hard intro problem.
• The list comprehension was hard to conceptualize and justify.

Q6: Contains_n

• First "elif" case wasn't that inuitive.
• Skeleton was too strict.
• Cool to use "True in..." but most students are used to any/all and would prefer using that.