Khan Academy is a non-profit online learning platform designed to make high-quality education accessible to anyone, anywhere. With thousands of free video lessons, articles, and interactive exercises, it covers core subjects such as math, science, computing, economics, history, test prep, and early learning. The platform adapts to each learner’s pace, offering personalized practice and instant feedback so students can master concepts step by step. Learners can track their progress through detailed dashboards, while teachers, parents, and tutors gain powerful tools to assign content, monitor performance, and identify learning gaps in real time. Khan Academy’s curriculum is standards-aligned in many regions and is widely used in classrooms, after-school programs, and homeschooling environments. In addition, specialized courses support preparation for exams like the SAT, LSAT, and AP subjects. Khan Academy operates without ads or subscription fees and is supported by donations, ensuring that its resources remain freely available. Its multilingual content and accessibility-friendly design make it useful for diverse learners, including young children, adult learners, and students returning to foundational skills. Whether you’re building confidence in basic arithmetic, exploring advanced calculus, or reinforcing classroom lessons, Khan Academy offers a structured, engaging way to learn at your own pace.
完全免费,无广告,非营利组织
Supplement classroom instruction with videos and exercises that explain core math and science concepts in a step‑by‑step, visual way.
Help K–12 students fill learning gaps and build strong foundations by assigning personalized practice sets and tracking their progress over time.
Support exam preparation for SAT, AP, LSAT, and other standardized tests using structured study plans, topic breakdowns, and targeted practice.
Enable homeschooling families to follow a clear, grade‑level curriculum with ready‑made lessons, practice, and progress reports for each child.
Provide adult learners with a flexible way to review fundamental math or explore new subjects such as economics, computing, or statistics.