MIT OpenCourseWare

Every MIT course. Online. Free. Since 2001, MIT has published materials from 2,500+ courses covering every department — from physics to philosophy, from linear algebra to linguistics. The most popular course, 18.06 Linear Algebra with Gilbert Strang, has been viewed 50 million+ times and is considered the definitive resource for the subject. The commitment is remarkable: lecture videos, problem sets, exams, and solutions — the full MIT experience minus the $60,000/year tuition and Boston weather. OCW has been accessed by 300 million+ learners worldwide. MIT proved that knowledge can be free; motivation is the bottleneck.