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Khan Academy

Product by Khan Academy, Inc.

Subjects: Early Childhood Education, Humanities, Social Science +4 more
Research reviewProduct information and editorial analysis.

The Bottom Line

Yes, Khan Academy is a highly effective instructional tool that relies on mastery-based learning. It excels at delivering direct instruction through worked examples and immediate practice sets. While it lacks built-in spaced repetition to prevent long-term forgetting, its structured progression ensures your child masters foundational concepts before advancing.

TLSThe Learning
Standard
Khan Academy / The decision brief

For families deciding what comes after a mastery milestone

Khan Academy: what does the mastery percentage include?

Your child has reached a mastery milestone. You want to celebrate it and decide whether to move ahead, revisit a skill or stop adding extra work at home.

The number you seeCourse and Unit Mastery

Proficient and Mastered both count

Khan Academy's current calculation counts both Proficient and Mastered skills toward mastery percentage. It is not the percentage at Mastered alone. Its help page excludes Brazil and Peru from the new calculation, so confirm which version applies before interpreting a change in the number.1, 2

01 / The skill

Which skills are included?

Look at the named skills and their individual levels. Which ones matter for the work your child is doing in class?

02 / The change

What changed underneath the number?

Ask whether recent answers changed a skill level or whether the displayed calculation changed. Compare the same course, not two different courses.

03 / The decision

What would make moving on sensible?

Ask the teacher to connect one relevant skill to recent classroom work. Agree whether the next step is review, new content or no extra assignment.

A conversation to have together

We are pleased with the Khan Academy progress. Could you help us choose the next step using the individual skill levels and recent classwork? We want to support the right skill without making the percentage itself the homework goal.

The next decision. Bring the course name and one relevant skill to the conversation. Celebrate the milestone, then agree on what comes next before assigning more Khan Academy work.

Keep the Khan Academy decision brief

Keep the mastery explanation, three decision questions and a teacher message together so another caregiver can help without treating the percentage as a complete assessment. Subscribe to future TLS research updates and download the one-page PDF here immediately.

Pros

  • Utilizes mastery-based progression to ensure learners understand core concepts before introducing complex topics.
  • Provides clear worked examples via video instruction to reduce cognitive load during initial skill acquisition.
  • Offers immediate corrective feedback during practice sets to correct misconceptions in real-time.
  • Gives learners agency to learn at their own pace, accommodating different working memory capacities.

Cons

  • Lacks automated spaced repetition mechanisms, meaning students must manually review old material to prevent decay.
  • Relies heavily on passive video consumption which can lead to superficial engagement if not monitored.
  • Does not provide deep explanatory feedback for incorrect answers beyond showing the procedural steps.
  • Fails to offer varied retrieval practice modes, relying mostly on standard multiple-choice and short-answer formats.

What Do We Know About Khan Academy?

Yes, Khan Academy is an effective platform for learning and practicing new academic skills, provided it is used consistently. The app relies on a mastery-based model, meaning your child must demonstrate proficiency in a specific skill before the system considers it learned. This approach is highly supported by learning science, as it prevents foundational gaps that often plague students in traditional classrooms. However, parents must recognize that Khan Academy currently lacks an automated spaced repetition system. This means that once your child completes a unit, the app does not automatically resurface those questions weeks later to cement long-term retention. You will need to prompt your child to revisit older topics periodically to prevent forgetting. The platform is excellent for providing worked examples through step-by-step videos, which reduces cognitive load when tackling complex math or science problems. While The Learning Standard has not yet formally evaluated Khan Academy, its core mechanics align well with established cognitive science principles. Parents should use it as a robust supplement to classroom instruction rather than a complete replacement, ensuring that learners do not simply passively watch videos but actively engage with the practice sets.

How Does Khan Academy Work?

Khan Academy uses mastery-based progression with video instruction followed by immediate practice sets. When your child selects a topic, they are presented with a sequence of instructional videos and articles that serve as direct instruction and worked examples. After consuming this content, learners complete short practice quizzes designed to test their immediate recall and procedural fluency. The system tracks their accuracy and speed, updating a personalized mastery dashboard. Students start at a familiar level and must consistently answer questions correctly over time to reach mastered status. If a student struggles, the platform recommends reviewing specific videos or taking hints that break the problem down into smaller, manageable steps. This scaffolding helps manage cognitive load by isolating individual components of a complex problem. The platform offers unit tests and course challenges that act as cumulative retrieval practice, forcing the brain to recall information from multiple previous lessons, which strengthens neural pathways and deepens overall comprehension.

Strengths and tradeoffs of Khan Academy

Khan Academy's biggest strength is its immense library of worked examples, while its biggest weakness is the absence of systemic spaced repetition. Worked examples are highly effective for novice learners, and the platform delivers these masterfully through step-by-step video tutorials that model problem-solving behavior. This explicit instruction minimizes cognitive overload, allowing your child to process new information efficiently. Mastery-based learning is another significant strength. The platform forces learners to achieve a high success rate on practice sets before moving on, effectively preventing the accumulation of learning deficits over time. However, the platform falls short in its approach to long-term retention. Because it lacks automated spaced repetition, students are not systematically prompted to retrieve older information just as they are about to forget it. Without this interleaving and spaced practice, knowledge decay is inevitable. Additionally, the feedback mechanisms are relatively rigid. While learners receive immediate notification of correct or incorrect answers, the explanatory feedback often simply reiterates the procedural steps rather than addressing the underlying conceptual misunderstanding. Despite these flaws, the active retrieval practice offered through its unit tests remains a robust tool for cementing knowledge when utilized properly.

Who Might Benefit From Khan Academy?

Best for self-directed students from elementary through early college who need structured practice or alternative explanations for classroom material. Khan Academy serves exceptionally well as a supplemental tutoring tool when your child struggles with a specific concept, particularly in mathematics and the hard sciences. Because the platform relies heavily on reading and video comprehension, it requires a moderate level of independent focus. It is ideal for learners preparing for standardized tests like the SAT, as the curriculum directly maps to the required competencies and offers ample retrieval practice to build procedural fluency.

Data Transparency

Does Not Meet Data Transparency Standard

Khan Academy does not meet our data transparency standard.

B71/100

25 of 35 checks passed

Parent Access
8/8
Data Portability
1/5
Data Minimization
3/6
Third-Party Protection
7/7
Deletion & Retention
3/5
Advertising
3/4
View all 35 checks

Parent Access8/8

Does the policy mention parents specifically?

Parents (not Children) can modify or delete Child User accounts, as described in our

Documented

Can parents view their child's data?

with other users that are associated with your account, such as a parent, teacher or coach.

Documented

Can parents modify their child's data?

Parents (not Children) can modify or delete Child User accounts, as described in our

Documented

Can parents delete their child's account?

Parents (not Children) can modify or delete Child User accounts, as described in our

Documented

Is there a dedicated Children's Privacy section?

This privacy notice supplements our Privacy Policy and provides additional information about

Documented

Does it reference COPPA compliance?

our privacy practices are informed by the Children’s Online Privacy Protection Act (“ COPPA ”).

Documented

Does it reference FERPA compliance?

we work with Schools to protect Student Personal Data consistent with FERPA.

Documented

Is parental consent required for child accounts?

seeking the consent of a parent or legal guardian (“ Parent ”) for creation of that account.

Documented

Data Portability1/5

Can users access their personal data?

We want you to have access to your personal information, so that you can help keep it as accurate

Documented

Can users download/export their data?

Not documented

Is there a self-service data access tool?

Not documented

Is a specific data format mentioned for export?

Not documented

Is there an API for data access?

Not documented

Data Minimization3/6

Is data collection itemized?

Account registration information (username, birthdate, and email)

Documented

Can the app be used without a real name?

We encourage you to create a username that does not reveal your identity

Documented

Can the app be used without an email?

you can choose whether to create an account (or use the Service without registering).

Documented

Does it state collection is limited to necessary?

Not documented

Is IP address anonymized or truncated?

Not documented

Is location tracking explicitly excluded?

Not documented

Third-Party Protection7/7

Does it explicitly state no selling of data?

We do not sell your personal information to third parties.

Documented

Are third-party providers named?

a teacher rosters a class using Google Classroom, Clever, or similar single sign-on service

Documented

Are providers contractually restricted?

our service agreements with the providers of artificial intelligence models used to power our

Documented

No-targeted-advertising commitment?

We take steps to avoid the collection of information for targeted advertising purposes

Documented

Is AI/ML data sharing addressed?

do not permit the providers to use Input data to train their models.

Documented

Child-specific sharing restriction?

restricting child accounts to automatically block features that would allow a child to post

Documented

Cookies/tracking limited or opt-out?

Because we respect your right to privacy, you can choose not to allow some types of cookies.

Documented

Deletion & Retention3/5

Can users delete their account?

you may update, correct, or delete your account and information at any time by reviewing

Documented

Self-service deletion mechanism?

delete your account and information at any time by reviewing your profile information

Documented

Specific data retention timeline?

Not documented

Auto-deletion of inactive accounts?

Not documented

Post-deletion handling described?

When we have no ongoing legitimate business need to process your personal Information, our policy

Documented

Advertising3/4

Advertising model explicitly disclosed?

Khan Academy does not display third party advertisements on our Service.

Documented

Free from third-party advertisements?

Khan Academy does not display third party advertisements on our Service.

Documented

Children excluded from ad targeting?

we avoid use of tracking technology on webpages with child-directed content, and we do not use

Documented

Ad-free option available?

Not documented

What This Means

The policy review did not meet our data transparency standard. The checks above show the documented findings and unknowns. A missing statement does not establish how the app handles data in practice.

About this evaluation: Based on automated analysis of Khan Academy's privacy policy using the Common Sense Privacy Program framework. Results describe the policy disclosures we assessed; unknown checks are excluded from scores. Privacy policies can change. This review reflects the version we analyzed and does not determine legal compliance.

Sources and review method

TLS combines product information and editorial analysis to explain how Khan Academy works, its tradeoffs, and the questions to ask before choosing it. Product features, an instructional rationale and evidence of learning outcomes are different kinds of information.

Formal Learning Standard assessment: not yet completed. Data Transparency findings are reported separately and do not establish learning effectiveness. Read our methodology.

Frequently Asked Questions About Khan Academy

Is Khan Academy free?

Yes, Khan Academy is entirely free for all users globally. As a non-profit organization, it provides full, unrestricted access to its entire library of instructional videos, practice exercises, and personalized mastery dashboards without any subscription fees or hidden paywalls. Unlike many commercial educational applications that lock their best features or detailed progress analytics behind a premium tier, Khan Academy offers its complete pedagogical toolset at no cost. This makes it an incredibly accessible resource for parents and educators seeking high-quality, scientifically grounded supplemental instruction for their students.

Is Khan Academy good for elementary students?

Yes, Khan Academy is highly effective for elementary students, particularly for building foundational math skills. The interface for younger learners is thoughtfully structured to minimize distracting elements and reduce unnecessary cognitive load. For older elementary students, the main platform provides excellent scaffolding through step-by-step hints and guided practice. However, parents should actively monitor usage to ensure children are genuinely completing the retrieval practice sets and engaging with the material, rather than simply watching the instructional videos passively without testing their own understanding.

What does Khan Academy teach?

Khan Academy teaches a remarkably wide variety of academic subjects, though its strongest and most comprehensive content lies in mathematics, ranging from basic early arithmetic to advanced college-level calculus. Beyond math, the platform provides extensive curriculum in the hard sciences like biology, chemistry, and physics. It also offers structured courses in computing, history, economics, and humanities. Additionally, it features dedicated, high-quality test preparation modules for standardized exams such as the SAT, Praxis, and LSAT, which utilize official practice questions to build test-specific procedural fluency.

Is Khan Academy safe for kids?

Yes, Khan Academy is highly secure and safe for children to use independently. It operates as a closed educational environment entirely devoid of direct messaging, public chat rooms, or social networking features, which eliminates the risk of unmoderated online interactions. The organization strictly complies with standard student data privacy regulations, ensuring user data is not sold to third-party advertisers. Parents and educators can easily create linked accounts to safely monitor their child's academic progress, assign specific practice sets, and review mastery levels in real time.

Khan Academy vs IXL: Which is better?

Both platforms offer strong retrieval practice, but they serve entirely different instructional needs. Khan Academy excels at direct instruction through its vast library of video-based worked examples, making it the ideal choice when your child needs to learn completely new concepts. IXL focuses almost exclusively on algorithmic drill-and-practice without comprehensive initial instruction. If your child needs complex mathematical concepts explained step-by-step, Khan Academy is vastly superior. If they simply require endless, varied repetitions of a foundational skill they already fully understand, IXL is highly effective.

Has The Learning Standard evaluated Khan Academy?

Khan Academy is currently pending evaluation by The Learning Standard. While we have not yet formally rated the application against our rigorous, evidence-based pedagogical rubrics, our initial analysis indicates that it strongly utilizes proven learning science frameworks like mastery-based progression and explicit worked examples. We highly recommend reviewing our complete methodology page to better understand exactly how we assess educational technology, measure instructional efficacy, and evaluate the specific cognitive mechanics that drive true long-term student learning.

Is Khan Academy COPPA compliant?

The reviewed privacy policy references COPPA. A policy reference alone does not establish COPPA compliance. Policy review note: our privacy practices are informed by the Children’s Online Privacy Protection Act (“ COPPA ”).

Is Khan Academy FERPA compliant?

The reviewed privacy policy references FERPA. A policy reference alone does not establish FERPA compliance. Policy review note: we work with Schools to protect Student Personal Data consistent with FERPA.

Does Khan Academy have a children's privacy policy?

The reviewed policy includes a dedicated children's privacy section. Policy review note: This privacy notice supplements our Privacy Policy and provides additional information about

Does Khan Academy sell student data?

The reviewed policy states that the app does not sell data. This is a policy statement; actual data practices were not verified. Policy review note: We do not sell your personal information to third parties.

Can you delete your data from Khan Academy?

The reviewed privacy policy describes account deletion. We have not tested the deletion process. Policy review note: you may update, correct, or delete your account and information at any time by reviewing

Keep the Khan Academy decision brief

Keep the mastery explanation, three decision questions and a teacher message together so another caregiver can help without treating the percentage as a complete assessment. Subscribe to future TLS research updates and download the one-page PDF here immediately.

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