Principia Tutors
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Oliver Lee, a Princeton University graduate with a passion for tutoring. Since high school, he's been helping students excel academically, and in 2016, he co-founded Principia with his wife, Elaina. Together, they've guided countless students to success in test prep, writing competitions, and college admissions.
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Achievable ACT - $99
Get ACT test prep built for today's learners - mobile, guided, and personalized. Reach your target ACT score with our powerful online self-study course and practice questions for math, English, science, reading, and writing.
3 full-length practice ACTs
1,400+ practice questions with explanations
Up to 6 more points, or your money back
Free first lessons, no credit card needed
