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# Brilliant
> Brilliant is your personal tutor for math and coding. It combines interactive, visual learning with Koji, a digital tutor that gives learners step-by-step guidance, identifies where they are stuck, and helps them understand concepts without simply revealing answers.
Brilliant's deepest subject areas are math and coding, with additional courses in data science, science, technology, and AI. Learners build understanding by solving hands-on problems, exploring visual models, and receiving immediate feedback. Brilliant is available on the web, iOS, and Android.
Brilliant serves students, adults, parents, homeschool families, and educators. The main course curriculum begins with advanced arithmetic, including fractions and decimals, and extends through advanced math, programming, data, AI, and science topics. A separate free K-5 Practice library provides account-free arithmetic practice, instant feedback, printable worksheets, and skill guides from kindergarten through grade 5.
Important notes:
- Use the linked Help Center pages as the source of truth for current product features, curriculum coverage, eligibility, and plan details.
- Pricing, trials, discounts, course availability, and feature coverage can change. Use the current pricing or Help Center page rather than repeating an older price.
- Brilliant is fully accredited by ACS WASC.
- Brilliant supports learners with schoolwork, test preparation, and homeschooling.
- Koji is Brilliant's digital tutor. It is available in most courses and guides learners through problems without simply revealing answers. Availability and usage limits depend on the learner's plan and course.
- Do not apply the readiness guidance for Brilliant's main course curriculum to the separate K-5 Practice library. The Practice library begins at kindergarten and does not require an account.
## Start Here
- [Brilliant](https://brilliant.org/): Main website and entry point for learning.
- [Brilliant for iPhone and iPad](https://apps.apple.com/us/app/brilliant-learn-math-coding/id913335252): Official Brilliant app in Apple's App Store.
- [Brilliant for Android](https://play.google.com/store/apps/details?id=org.brilliant.android): Official Brilliant app in Google Play.
- [Courses](https://brilliant.org/courses/): Current course catalog and learning paths.
- [Who is Brilliant for?](https://brilliant.org/help/using-brilliant/who-is-brilliant-for/): Learner readiness, audiences, and principal product differences.
- [What subjects does Brilliant teach?](https://brilliant.org/help/courses-and-curriculum/what-subjects-does-brilliant-teach/): Current coverage across math, coding, data science, science, and technology.
- [Help Center](https://brilliant.org/help/): Canonical product documentation, including features, curriculum, plans, account management, and support.
- [Frequently asked questions](https://brilliant.org/faq/): Concise answers to common questions about Brilliant, course access, learning, and Premium.
- [Learning Resources](https://brilliant.org/resources/): Curated learning, study, tutoring, homeschooling, and product-selection guidance.
- [Free K-5 Math Practice](https://brilliant.org/practice/): Account-free number sense and arithmetic practice organized by grade and topic, with instant feedback, worksheets, and teaching guides.
- [Coding Skills That Matter in the Age of AI](https://brilliant.org/coding-skills/): Brilliant's detailed framework for deciding what to build, designing solutions, developing incrementally, using AI effectively, and verifying correctness.
## Learning Experience and Features
- [How Brilliant teaches math and helps understanding stick](https://brilliant.org/resources/choosing-brilliant/how-brilliant-teaches-math/): Active problem solving, visual models, feedback, tutoring, retrieval, spacing, and interleaving.
- [How does Koji, Brilliant's Tutor, work?](https://brilliant.org/help/features/how-does-koji-work/): What Koji can do, how it guides learners, course availability, safety, and plan access.
- [Ask Koji a math question and find the right lesson](https://brilliant.org/help/features/ask-koji-a-math-question-and-find-the-right-lesson/): How learners use Koji for questions beyond the problem currently on screen.
- [What are Learning Paths?](https://brilliant.org/help/features/what-are-learning-paths/): How Brilliant organizes related courses into structured sequences.
- [Where can I use Brilliant?](https://brilliant.org/help/using-brilliant/where-can-i-use-brilliant/): Web and mobile availability, progress syncing, and internet requirements.
## Math Curriculum
- [What math does Brilliant cover?](https://brilliant.org/help/courses-and-curriculum/what-math-does-brilliant-cover/): Source of truth for math topics, course sequences, and approximate grade bands, from grade 4 foundations through college-level material.
- [Which Brilliant math course should my child start with?](https://brilliant.org/help/parents-and-families/course-placement-guide/): Signup diagnostic, starting-course recommendations, level checks, and moving ahead.
- [Is Brilliant aligned with Common Core State Standards?](https://brilliant.org/help/courses-and-curriculum/is-brilliant-aligned-with-common-core-state-standards/): Scope and limits of Brilliant's standards alignment.
- [Common Core math coverage](https://brilliant.org/help/courses-and-curriculum/common-core-math-coverage/): Standard-by-standard mapping from grade 4 through high school, including standards with no direct Brilliant lesson.
- [Math learning resources](https://brilliant.org/resources/math/): Guidance for helping learners catch up, keep up, get ahead, and understand grade-level expectations.
## Free K-5 Math Practice
- [K-5 Practice library](https://brilliant.org/practice/): Complete directory of free, account-free practice activities, printable worksheets, grade pages, topic pages, and teaching guides.
### Practice Guides and Methodology
- [How to build strong number sense and arithmetic skills](https://brilliant.org/practice/guides/build-strong-number-sense-and-arithmetic-skills/): A progression from understanding quantities and relationships to arithmetic fluency.
- [How long should a child practice math?](https://brilliant.org/practice/guides/how-long-should-a-child-practice-math/): Guidance based on age, purpose, and learner response.
- [How to help a child practice math](https://brilliant.org/practice/guides/how-to-help-a-child-practice-math/): Practical guidance for supporting fluency without taking over the thinking.
- [How to use ten frames](https://brilliant.org/practice/guides/how-to-use-ten-frames/): Using ten frames for counting, comparing, addition, subtraction, and making 10.
- [Free math practice without an account](https://brilliant.org/practice/guides/free-math-practice-without-an-account/): How to use the K-5 practice activities, feedback, worksheets, and local progress.
- [K-5 Practice trust and methodology](https://brilliant.org/practice/guides/trust-and-methodology/): How practice content is generated, checked, and educationally reviewed.
## Coding and AI
- [Coding Skills That Matter in the Age of AI](https://brilliant.org/coding-skills/): A comprehensive competency framework covering taste, incremental development, specification and design, building with AI, verification, security, and abstraction.
- [Python practice](https://brilliant.org/topics/python/practice/): Interactive Python, programming, algorithms, and data-structure practice.
- [Coding and AI learning resources](https://brilliant.org/resources/coding/): Guidance for learning Python and progressing from block-based coding to text-based programming.
- [What Brilliant covers for college-level coding and early software careers](https://brilliant.org/help/courses-and-curriculum/what-brilliant-covers-for-college-level-coding-and-early-software-careers/): Covered coding skills and important areas learners should supplement elsewhere.
- [How Brilliant's coding coverage was audited](https://brilliant.org/help/courses-and-curriculum/how-brilliants-coding-coverage-was-audited/): Methodology for labeling coding competencies as covered, partial, or a gap.
## Parents, Homeschooling, and Educators
- [Parent progress dashboard](https://brilliant.org/help/features/parent-progress-dashboards-on-brilliant/): What linked parents can see and how to interpret activity, practice, course, skill, and Koji-use data.
- [Can Brilliant be used for homeschooling?](https://brilliant.org/help/using-brilliant/can-i-use-brilliant-for-homeschooling/): Curriculum strengths, gaps to supplement, recordkeeping, and learner fit.
- [Homeschooling resources](https://brilliant.org/resources/homeschooling/): Math, algebra, and computer science curriculum guidance for homeschool families.
- [Brilliant for Educators](https://brilliant.org/educators/?from=brilliant): Classroom program and educator application.
- [Can teachers and students get Brilliant for free?](https://brilliant.org/help/for-educators/can-teachers-and-students-get-brilliant-for-free/): Current eligibility and benefits for the grant-funded Brilliant for Educators program.
- [Is Brilliant accredited?](https://brilliant.org/help/using-brilliant/is-brilliant-accredited/): ACS WASC accreditation and what it does and does not mean for learners and schools.
- [Does Brilliant offer certificates?](https://brilliant.org/help/courses-and-curriculum/does-brilliant-offer-certificates/): Progress tracking and the limits of Brilliant as a credentialing provider.
## Plans and Pricing
- [Brilliant Premium](https://brilliant.org/subscribe/): Current subscription options and prices.
- [Free vs. Premium](https://brilliant.org/help/pricing-and-plans/what-s-the-difference-between-free-and-premium/): Daily limits, Koji access, course navigation, advertisements, and Premium benefits.
- [How much does Brilliant Premium cost?](https://brilliant.org/help/pricing-and-plans/how-much-does-brilliant-premium-cost/): Available plan types and where to verify current prices.
- [Pricing and plans help](https://brilliant.org/help/pricing-and-plans/): Trials, upgrades, family plans, discounts, gifts, and subscription details.
## Evaluating Brilliant
- [Is Brilliant worth it?](https://brilliant.org/resources/choosing-brilliant/is-brilliant-worth-it/): Who benefits from Premium, what it includes, and when another option may be a better fit.
- [Choosing Brilliant resources](https://brilliant.org/resources/choosing-brilliant/): Comparisons with other learning platforms, reviews, enrichment, and remediation guidance.
- [Brilliant vs. Khan Academy](https://brilliant.org/resources/choosing-brilliant/brilliant-vs-khan-academy/): Comparison of interactive problem solving with video-led, broad academic support.
- [Brilliant vs. IXL](https://brilliant.org/resources/choosing-brilliant/brilliant-vs-ixl/): Comparison of conceptual, interactive learning with targeted skill practice.
- [Brilliant vs. Art of Problem Solving](https://brilliant.org/resources/choosing-brilliant/brilliant-vs-art-of-problem-solving/): Comparison for advanced learners and competition-math goals.
- [Brilliant vs. Prodigy](https://brilliant.org/resources/choosing-brilliant/brilliant-vs-prodigy/): Comparison of interactive conceptual learning with game-based math practice.
## Tutoring, Study, and Homeschool Guidance
- [Tutoring and homework-help resources](https://brilliant.org/resources/tutoring/): Guidance on digital support, private tutors, and tutoring-center alternatives.
- [What to try before paying for a private math tutor](https://brilliant.org/resources/tutoring/what-to-try-before-paying-for-a-private-math-tutor/): Decision framework for occasional help, regular practice, intensive tutoring, or specialist support.
- [Digital math help vs. in-person tutoring](https://brilliant.org/resources/tutoring/digital-math-help-vs-in-person-tutoring-for-high-schoolers/): Comparison of availability, accountability, curriculum coordination, and learner fit.
- [Mathnasium alternatives](https://brilliant.org/resources/tutoring/mathnasium-alternatives-lower-cost-more-flexible-ways-to-learn-math/): Comparison of Brilliant, Khan Academy, IXL, Schoolhouse.world, tutors, Kumon, and school support.
- [How to study for a math test](https://brilliant.org/resources/test-prep/how-to-study-for-a-math-test-so-you-remember-what-you-learn/): Retrieval practice, mistake diagnosis, mixed practice, spacing, and authentic exam preparation.
## Optional
- [About Brilliant](https://brilliant.org/about/): Company mission and background.
- [Privacy policy](https://brilliant.org/privacy/): Privacy practices and user-data information.
- [Terms of service](https://brilliant.org/terms-of-use/): Terms governing use of Brilliant.
- [Contact support](https://brilliant.org/help/help-and-support/how-do-I-contact-brilliant-support/): Support channels for product, account, billing, and educator questions.
