Dear friends, Please read our latest blog post for an important announcement about the website. ❤, The Socratic Team

marfre has helped students times in

Summary of contribution activity by day

On a 18 day streak. Longest streak: 108 days
55 thank you notes


I worked as a mechanical engineer doing FEA on cranes. Then I switched to writing CAD software using FORTRAN, C, C++. While raising my son I started teaching high school math and physical science courses and did FTC robotics. I recently retired from teaching and am now tutoring part-time.

80K karma · Brighton, CO
Legendary! On Fire! Great Answer! Friendly Face!
Level 15 in Algebra Level 11 in Calculus Level 11 in Trigonometry Level 10 in Precalculus Level 10 in Chemistry Level 10 in Geometry Level 8 in Statistics Level 7 in Prealgebra Level 6 in Physics Level 6 in Anatomy & Physiology Level 2 in Organic Chemistry I
Recent collaborators
Activity 944 Answers 26 Edits 1 Asked