The 3 R’s approach to teaching organic chemistry can enhance both traditional and nontraditional teaching methodologies. To date, classes are taught from notes because textbooks lack the photographic evidence and detailed problem solving that are key to the method. Where possible, lecture topics are covered as triads, the third component, which integrates (by repetition and reinforcement) and enhances the subjects covered in the first two parts. Throughout the course, reactions and concepts are supported by photographic/video evidence (50,000 photographs 10 videos), which is the revelation component of the 3R’s. For example, aromatic stability is supported by video of the isolation of chemical fossils used in oil exploration. Problem solving, problem diagnostics and regular testing are crucial components for reinforcement of course content. All problems are accompanied by extensive step-by-step solutions often incorporating diagnostic check lists to help the student and instructor find the source of the error. The outcome of using the 3R approach in small and large classroom settings is promising, but evidence is flimsy. An all-minority student cohort from the QBIC (Quantifying Biology in the Classroom) program, were taught using the 3R method. Previously, QBIC students were taught Organic Chemistry in large classes. Only ~10% attained ‘A’ grades in Organic Chemistry II. In contrast 70% of the “3R” students earned ‘A’ grades (average ranking on the ACS examination, taken voluntarily and without coaching: 91st percentile). Unfortunately, the experiment was abandoned. Student volunteers (mostly minority) from a large “3R” class took the ACS examination 3 months after completing the course. The average was the 85th percentile; low 60th high 99th. Performances in exit examinations showed similar benefits from the “3R” approach. In general, student performances in national examinations at Florida International University are modest. Thus, the excellent performances of the students using the 3R approach are especially noteworthy.

3 R’s (repetition, reinforcement, revelation) approach to teaching organic chemistry: A promising approach to helping students achieve their academic potential

251st National Meeting (2016)

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