Explanations that get to the point
Online courses for teens aged 12–17
Coding, web, design, English, Chinese and SAT prep. Explanations that get to the point, mini-projects, leagues and certificates worth adding to a portfolio.

- Explanations without padding: the point, an example and a few terms.
- Leagues and streaks help build a habit — without pressure.
- A final exam and a certificate with a QR code for a portfolio or applications.
Courses for this group
PythonLearn to think in code: variables, conditions, loops, functions and files.
Web developmentFrom your first HTML line to an interactive page with JavaScript and API calls.
Git & GitHubVersions, branches, merges and pull requests: work on code with a team and stop fearing you might break something.
CybersecurityProtect your accounts, spot scammers and work safely online.
AI & prompt engineeringUse AI as an assistant: precise prompts, checking answers, automation.
Data analytics & SQLTurn numbers into decisions: metrics, SQL queries, charts and A/B tests.
Spreadsheets: Excel & Google SheetsFormulas, functions, filters and pivot tables: calculate budgets, reports and data quickly and without mistakes.
UX/UI designDesign clear interfaces: hierarchy, typography, grids, states and accessibility.
Digital marketingUnderstand your audience, build a funnel and turn ideas into a growth strategy.
SMM & promotionRun social media systematically: content plans, Reels, Telegram channels, engagement and analytics.
Logic & puzzlesPatterns, knights and knaves, Euler diagrams and probability: train your thinking with puzzles.
Financial literacyBudgeting, saving, interest, loans and fraud protection — money without the stress.
SAT MathAlgebra, functions, data and geometry in the Digital SAT format, with step-by-step explanations.
SAT Reading & WritingGrammar, punctuation, reading and text logic for the Digital SAT, with real exam-style examples.
Chinese (HSK 1)Pinyin, tones, first characters and spoken dialogues — the easiest level of Chinese.
Uzbek (A1)Uzbek in Latin script from scratch: sounds, greetings, numbers, family and simple grammar — with audio.
Russian (A1)Russian from scratch: Cyrillic, greetings, numbers, family and simple grammar — with audio.For parents and teachers
- Teens on the free plan see short ads — a PRO subscription turns them off.
- Registering under 14 needs a parent’s or guardian’s consent.
- A school or learning centre can create classes and follow students’ progress.
- Exam results are checked automatically on the server.
Frequently asked questions
How are teen courses different from adult ones?
The exercises are the same, while explanations are shorter and simpler: the point, an example and few terms. Adults also get a “Deeper” section.
Is there SAT prep?
Yes, the catalogue includes SAT courses: math, and reading and writing. They help you learn the test format and typical questions.
Can we study through a school?
Yes. Partner schools get a teacher room: classes, student logins, progress and rankings.
Pick a course by age
Kids · ages 6–11Simple words, short explanations and pictures. No ads, with heroes and rewards.Learn more →
Teens · ages 12–17The point and examples without padding, mini-projects, leagues and certificates for a portfolio.Learn more →
Adults · 18+Detailed explanations, reasons and nuances, and a “Deeper” section in every lesson.Learn more →