Studying for the SAT for 20 hours on Khan Academy associated with 115-point average score increase

We’re excited to announce today that studying for the SAT for 20 hours on Khan Academy’s free Official SAT Practice is associated with an average score gain of 115 points. That’s nearly double the average score gain compared to students who don’t use our free test prep.

Official SAT Practice is free for everyone and personalized for each student. Start getting ready for the SAT today! We think a 115-point score gain can make a real difference when applying to college.

If you don’t have 20 hours to practice, don’t worry. Shorter periods of time also correlate with meaningful score gains. Six hours of study on Official SAT Practice is associated with an average 90-point increase—no small bump.

We’re also excited that more than 16,000 students from the class of 2017 who used Official SAT Practice improved their scores by more than 200 points. Way to go!

Together with the College Board—the maker of the SAT—we studied data from nearly a quarter million high school students from the graduating class of 2017 who took the PSAT/NMSQT and the new SAT in the past year. Score gains were consistent across genders, family income levels, races, ethnicities, high school GPAs, and parental education levels.

Since its launch in 2015, Khan Academy’s free Official SAT Practice has been used by more than 3.7 million students. We’re glad so many people are finding it helpful!

* Nearly 40% of all test takers report using our free Official SAT Practice, making it the number one tool for SAT prep.

* Twice as many students report using Khan Academy as paying for commercial test prep.

Khan Academy and the College Board developed Official SAT Practice to create personalized tools to help all students, regardless of income level or background, prepare for the SAT and college-level courses.

Official SAT Practice reinforces what students are learning in school by helping them focus on the knowledge and skills most essential for college. And it’s free, for everyone, forever.


Announcing Free LSAT Prep for All

We’re proud to announce we’ll soon offer free, personalized LSAT prep for all.

Every year, more than 100,000 people take the LSAT, the Law School Admission Test. Many test takers have traditionally paid for test prep, which can cost hundreds or even thousands of dollars.

We’re excited to offer a free LSAT practice program designed to help students with the skills they find challenging so that they can show up on test day ready to rock the LSAT.

What’s more, we’re doing this by partnering with the maker of the LSAT, the Law School Admission Council. By working with the maker of the exam, we can help many more people learn the skills they need to do well on the LSAT, in law school, and their careers.

We’re honored the Law School Admission Council has chosen to partner with us, and we’re excited to work together to help level the playing field.

Today’s announcement continues our tradition of providing free, official practice for standardized exams. In 2015, Khan Academy launched free Official SAT Practice with the maker of the SAT, the College Board. More than three million students have used Official SAT Practice at roughly equal rates across income levels, race, ethnicity and gender.

As always, our mission is to provide a free, world-class education for anyone, anywhere. We think free LSAT prep aligns perfectly with our goals. Look for it on Khan Academy in late 2018.


Khan Academy Announces Roster Integration for Google Classroom

Teachers using Google Classroom can now quickly and easily import their class roster to Khan Academy. Lean more here:

Import a roster from Google Classroom now.

Let us know what you think in the comments below. And thanks, as always, for using Khan Academy.


Congratulations to the Winners of the 2016 Breakthrough Junior Challenge

Congratulations to Deanna See, 17, and Antonella Masini, 18, winners of the 2016 Breakthrough Junior Challenge. Deanna and Antonella submitted short videos about big ideas to win the international science and math competition. We love their videos and hope you do too!

Superbugs! And our race against resistance

Deanna See, 17, Singapore

Quantum Entanglement

Antonella Masini, 18, Peru

The Breakthrough Prize honored Deanna and Antonella Sunday at a gala ceremony in Silicon Valley. Each student receives a $250,000 post-secondary scholarship. The science teachers who inspired the winning students receive $50,000. The winners’ schools receive a state-of-the-art science lab valued at $100,000.

The Breakthrough Junior Challenge is an annual global competition for students to inspire creative thinking about science and mathematics. Students ages 13 to 18 from countries across the globe are invited to create and submit original videos (five minutes in length maximum) that bring to life a concept or theory in the life sciences, physics or mathematics. This year 6,000 students from 146 countries entered the competition. The submissions are judged on the student’s ability to communicate complex ideas in engaging, illuminating, and imaginative ways. The Challenge is organized by the Breakthrough Prize Foundation. Khan Academy is a proud partner and helped judge the submissions.

The Breakthrough Prize – Silicon Valley’s premiere science and math prize – honors paradigm-shifting research and discovery in the fields of fundamental physics, life sciences and mathematics. This year, across all categories, the Breakthrough Prize Foundation awards $25 million to honor both outstanding career achievement and emerging talent.

A one-hour, edited version of the gala ceremony honoring winners airs on FOX Sunday, Dec. 18, at 7:00-8:00 PM ET/PT and globally on National Geographic in 171 countries and 45 languages.

The Breakthrough Prizes were founded by Sergey Brin and Anne Wojcicki, Mark Zuckerberg and Priscilla Chan, and Yuri and Julia Milner. Selection committees composed of previous Breakthrough Prize laureates choose winners. Additional information on the Breakthrough Prizes is available at


Announcing our 2016 Talent Search winners in the US and Canada

At Khan Academy, our mission is to provide a free, world-class education for anyone, anywhere. Our mission is ambitious, and we can’t do it alone. We need great explainers to create instructional videos, practice exercises, and reference articles to contribute to our growing library of content.

That’s why we ran the Khan Academy Talent Search again in the US and Canada this June - to find great video creators and amplify their voices. (We’ve also got a talent search in India! Click here for information.) We asked this year’s contestants to focus on a range of subjects from biology and psychology to geography and statistics. We received 1,300 video applications, and were blown away by the quality, passion, and ingenuity.

After reviewing all applications, we selected ten winners: one overall winner and nine finalists.

We were looking for videos that explain academic concepts with clarity and depth, are friendly and conversational, and laser-focused on helping students when they most need guidance - whether they are learning a concept for tomorrow’s test, completing their homework, or reviewing what they learned in class. These 10 videos clearly exemplify these qualities:

Scroll down to see all 10 videos. The overall winner receives a $3,000 cash prize and finalists receive $300. All winners are considered for content creation opportunities at Khan Academy.

Although our talent search is over in the US and Canada, we’re still looking for great creators to bring content to learners around the world. Check out our careers page for current job openings on our content team.  As previously mentioned, we’re running an India Talent Search to identify great video creators who can create content aligned to India’s academic standards.

Check out the 10 winning videos!


Overall winner Alison Caldwell: Doctoral student in neuroscience

Parts of the Brain

Alison’s video description: The brain is a complex organ, and even though it all kinda looks the same, it turns out that different parts of the brain do different things. In this video, we’ll go over all of the major parts of the brain, including the occipital, temporal, parietal, and frontal lobes. And we’ll even cover some of the other structures that get taken for granted. Get ready to fall in lobe!

Why we selected this video as the overall winner: ‘Parts of the brain’ covers the academic concepts deeply and rigorously, and Alison’s delivery throughout the video feels friendly and conversational while staying focused on what a student needs to know for class. You might have guessed that one of the reasons we selected this video as the overall winner is its high production values (engaging special effects, beautiful brain illustrations, etc.). While these certainly make the video enjoyable to watch, high production values aren’t a factor in our scoring. We look for videos that display exceptional clarity, approachability, and a focus on student needs - all qualities this video exemplifies.

Check out more videos by Alison.

Meet our nine Talent Search finalists!

Abraham Feinberg: College science teacher and data analyst

Nature vs. Nurture - Part 1

Abraham’s video description: Are your behaviors a fixed, inevitable result of your genes? Or are they the result of the people and objects that surround you? In this video, we’ll take a first look at the concept of Nature vs. Nurture, and we’ll try to get a beginning idea of why it’s such an important issue in many different areas of psychology (and everyday life!).

Check out more videos by Abraham.

Alexandra Evans: Policy instructor, Foreign Service Institute

Writing in the Ancient Near East

Alexandra’s video description: People have been drawing pictures for tens of thousands of years, but when did we really start to write things down? How did we develop written words from pictures? In this video, we’ll take a look at the very first writing systems, Sumerian cuneiform and Egyptian hieroglyphs, and we’ll trace how pictures evolved into written words.

Check out more videos by Alexandra.

Brian Macon: Full-time faculty, full-time father and husband, part-time PhD student

Confidence Intervals and Central Limit Theorem

Brian’s video description: What is the connection between the Central Limit Theorem and Confidence Intervals? In this video we will use a computer simulation to answer that question. The simulation will help us visualize the nature of sampling distributions as we begin our conversation about using estimates to make future predictions.

Check out more videos by Brian.

Jay Lin: Medical student and educational video producer


Jay’s video description: How exactly do drugs affect the brain? This video will go over the normal chemical signaling in brain cells, and then explore the different ways drugs can change this normal signaling.

Kelly Squires: Retired middle school teacher

Plate Tectonics

Kelly’s video description: Whether we’re aware of it or not, the earth’s crust is in a constant state of motion. A whole lot of colliding, dividing and sliding of massive chunks of lithosphere called plates, is happening very slowly but surely, right this very second. The reason for this remarkable movement is plate tectonics. In this video, we’ll explore the cause of plate tectonics, the major plates found throughout the earth and the various landforms such as mountain ridges, valleys, volcanoes and faults that result from the plates’ movement.

Robert Lochel: High school math teacher

Chi-Squared Goodness of Fit Tests

Robert’s video description: Are hospital births equally distributed through the week, or are some days more likely? A chi-squared goodness-of-fit hypothesis test is used to compare the variability present in the data to what could reasonable occur by chance alone, and the big ideas behind these categorical tests are explained.

Check out more videos by Robert.

Finalist: Ron Maxwell: Middle school science teacher

Moon phases explained- middle school level

Ron’s video description: A simple talk to help you learn the phases of the moon and the way the moon phases happen…

Check out more videos by Ron.

Finalist: Sonal Nalkur: Visiting Assistant Professor of Sociology at Emory University

Gender, Norms, and Occupations

Sonal’s video description: Why do some occupations seem to have a higher proportion of men or women? And does a person’s gender always have implications in the workplace? Many sociologists are curious to understand the reasons why the labor market looks the way it does. We also want to understand the specifics about why some people might be excluded or treated differently in the workforce. In this video, you’ll be introduced to some of the concepts that allow sociologists to ask bigger questions about how gender might operate in various occupations.    

Finalist: Steve Yang: Recent graduate of Rensselaer Polytechnic Institute

Bernoulli’s Equation Revisited

Steve’s video description: Engineering principles are often built upon concepts that you may have already learned in math and physics. In this video, we’ll see how we can adapt and expand the energy form of the Bernoulli’s Equation to the hydraulic head form to better suit the needs of engineers.

Check out more videos by Steve.