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Tests weren't too fun as they were more challenging than the past years with more content we had to know. For the proofs I would advise just watching some YouTube videos. Helped for me. Discussions were lowkey useless so I just stopped going and ended up fine. Also the fake reviews he put are really funny lol","source_url":"https://www.ratemyprofessors.com/professor/2872701","quality_rating":2,"difficulty_rating":4},{"observed_at":"2026-09-07 16:16:47.023696+00:00","run_id":"20260907T155543-ce3781c4","source_review_id":"UmF0aW5nLTQxMjcyMTQx","source_instructor_id":"rmp:2872701","instructor_name":"Mitch Keller","course_label":"CS240","course_id":"COMPSCI/MATH 240","course_uid":"course_9a1a7bf1933981bcbaca47ac","review_date":"2025-05-19 22:13:00 +0000 UTC","comment":"Tests are MUCH harder then the practice tests with harder MCQ's, more short answer problems, and harder proofs. 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