RT PREP & IPE was designed by Soonho Song, PhD and Paul Son, PhD — two career educators with over 30 years of combined classroom and curriculum-design experience in Math and Reading & Writing. Every Rule, every drill, every adaptive heuristic in the platform reflects what actually moves student scores in our classrooms.
Founder of Readingtown and 30+ years building Reading & Writing curricula for SAT, ACT, and TOEFL. Designed the 98-Rule R&W taxonomy across Boundaries, Inferences, Transitions, and Rhetorical Synthesis — and the audit pipeline that verifies every passage against Bluebook standards.
Director of Readingtown Canada and Ivy Academy with 30+ years coaching SAT, AMC, and AP Math. Designed the 140-Rule CORD method (Concept · Operation · Recognition · Drill) that distills every SAT question type into a one-page card, and led the Bluebook-faithful rendering of every Math chapter.
Together, Dr. Song and Dr. Son distilled three decades of high-impact teaching into one platform — 140 Rules, 2,064 audit-verified problems, an adaptive diagnostic, and an auto-classified mistake-type engine driven entirely by time-per-problem. The result: the most effective and efficient SAT prep course academies can deploy in one place.
