Khan Academy

Khan Academy

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Recommended Ages

PreK–12th grades

Khan Academy is a nonprofit learning platform offering thousands of free, self-paced lessons across math, science, history, economics, and more. Founded by Sal Khan, it’s built around short instructional videos paired with practice exercises and mastery challenges, so students can review concepts as often as needed. Parents appreciate the ability to track progress, assign skills, and fill in gaps without buying a full curriculum for every subject. It’s especially strong for math from early elementary through high school, as well as SAT practice. Some kids find the interface a bit plain compared with games, but for families seeking a robust, flexible, and free resource, Khan Academy remains a cornerstone.

Ideal for grades 2–12 learners who can read independently, like working at their own pace, and need either extra practice, a free primary math spine, or a way to accelerate or review topics.

Pros

Khan Academy is widely valued in secular homeschool circles for offering a huge library of free, high‑quality math, science, and humanities lessons with practice exercises and a personalized learning dashboard that works well for independent learners. 

Cons

Common critiques are that some math courses lack the amount of review typical curricula provide, there’s limited writing instruction, and the video‑plus‑problem format can feel monotonous or insufficient as a complete stand‑alone curriculum in every subject. 

Because it’s fully free, families generally do not use ESA or charter funds to “buy” Khan Academy. Programs may, however, accept Khan coursework as evidence for math, science, or test-prep hours in reporting.

Free

Khan Academy
$0.00 USD

Skills

What kids will learn

Khan Academy Mission

Khan Academy’s mission is “to provide a free, world‑class education for anyone, anywhere,” offering comprehensive online lessons and practice in math, science, humanities, test prep, and more at no cost. By combining mastery-based practice, instructional videos, and teacher tools, it aims to personalize learning for each student, whether they’re in a classroom, homeschooling, or learning independently.

Khan Academy Story

The story began when Salman “Sal” Khan started tutoring his cousin in math remotely while working as a hedge fund analyst, recording short video explanations on a digital notepad and uploading them to YouTube so she could review them. Those informal videos attracted a global audience, prompting Sal to quit his finance job and, with philanthropic support, turn Khan Academy into a nonprofit educational platform. Today, it offers thousands of interactive exercises and videos in dozens of languages and partners with school systems and governments around the world, while also experimenting with AI-powered tutoring tools like Khanmigo.

About Modular Learning

FAQ: Additional Details about Khan Academy

At the kitchen table or on a couch, a student watches a clear, friendly video explaining a concept like fractions or photosynthesis, then immediately works through interactive practice questions with instant feedback. There’s a steady rhythm of “watch, try, correct, and move on when mastered,” and many kids enjoy watching their mastery levels grow.

Khan Academy provides free, mastery-based courses in math, science, humanities, and test prep. Families create accounts for each learner, assign or let students choose courses, and then schedule regular “Khan time” where kids watch short video lessons and complete practice problems, while parents track progress through a dashboard and align work with their homeschool plan.

Parent involvement ranges from light to moderate. Adults set expectations, help choose focus areas, and sit nearby to support younger or easily frustrated learners. Older students may work independently with weekly check-ins to review progress and adjust goals.

Basic reading skills and comfort using a computer or tablet are helpful for most courses. Younger children may start with Khan Academy Kids, which emphasizes audio directions and visuals instead of text-heavy interfaces.

Khan Academy’s video lessons plus practice problems are very flexible: ADHD, gifted, and autistic learners can pause, replay, or jump ahead as needed. For dyslexic or math‑anxious kids, the mastery system can be helpful if used gently, but families may want to turn off timers, allow scratch work, and avoid over‑focusing on streaks.

Khan Academy can work well for some students with dyscalculia because of its mastery structure, unlimited practice, and on-demand hints and videos. At the same time, it is mostly symbolic and screen-based, so many dyscalculic learners will still need off-screen manipulatives, graph paper, and lots of guided, untimed discussion with an adult. I like it as a free practice and review tool alongside a concrete, multi-sensory core math program, not as the sole intervention.

Very 2e‑friendly for many kids: mastery‑based, self‑paced, and free. Strong analytical thinkers can accelerate far beyond “grade level,” while built‑in hints and step‑by‑step videos support learners with gaps or slower processing. For anxious kids, ignore streaks and scores and focus on growth over time.

Khan Academy can work well for some students with dyscalculia because of its mastery structure, unlimited practice, and on-demand hints and videos. At the same time, it is mostly symbolic and screen-based, so many dyscalculic learners will still need off-screen manipulatives, graph paper, and lots of guided, untimed discussion with an adult. I like it as a free practice and review tool alongside a concrete, multi-sensory core math program, not as the sole intervention.

Khan Academy lets students watch short video lessons and type or select answers on-screen rather than filling pages of worksheets, which can make it much easier for learners with dysgraphia who struggle with handwriting. Because progress is tracked digitally and practice is highly customizable, many families use it to let kids show what they know without their written output holding them back.

There is no cost to use Khan Academy, so no refund policy is needed. If it doesn’t fit your learner, you can simply stop using it or switch to another resource.

It’s less suitable as a sole resource for very young learners (outside of Khan Academy Kids), kids who require heavy parental scaffolding for focus, or families who want offline, project-based learning without screens.

Alternatives and complements include IXL or CTCMath for more structured practice, Zearn for elementary math, and traditional curricula (like Math Mammoth or Singapore) paired with Khan as a video tutor.

Khan Academy continuously refines its mastery system, adds new courses (such as additional high school and early college topics), and improves tools for learners and coaches.

Use Khan Academy intentionally rather than aimlessly: assign specific skills each week, have your learner keep a notebook of example problems and key ideas, and combine screen time with hands‑on practice or real‑world applications to deepen understanding.

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Meet Sal

Salman “Sal” Khan is the founder and CEO of Khan Academy, as well as the founder of Khan Lab School and Schoolhouse.world. Born in Louisiana and raised in the New Orleans area, he earned multiple degrees from MIT in math and electrical engineering/computer science and an MBA from Harvard Business School before unexpectedly becoming a full-time educator through his YouTube lessons. A fun fact: in addition to running Khan Academy, Sal was recently named the new “vision steward” and public face of the TED conference, reflecting his influence at the intersection of education, technology, and big ideas.