jim p.

Old guy. BS in computer science in 1979 (programming projects were all on punch cards!) Former Navy Jet Pilot.

These kids today with their Ruby on Rails...

774,129 students helped

Level 11 in Algebra

Level 7 in Calculus

Level 6 in Trigonometry

Level 6 in Geometry

Level 6 in Physics

Level 5 in Chemistry

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Level 4 in World History

Level 3 in Astronomy

Level 2 in U.S. History

Level 2 in Statistics

Level 1 in Socratic Meta

Level 1 in Earth Science

Level 1 in Prealgebra

Level 1 in Astrophysics

Level 1 in Anatomy & Physiology

Level 1 in Organic Chemistry I

Level 1 in English Grammar

Level 1 in Biology

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