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Timed breathing exercises with adjustable audio, visuals and haptics

A workshop whiteboard with polls, timed exercises, dot voting, version history, and offline editing.

Practical frontend exercises with hints and extensions

Short programming tutorials beside exercises and references

Free guided meditation, breathing exercises and courses without a premium tier

AI learning platform that builds a personalized curriculum for any subject

Coding foundations taught through visible program behavior

Daily IELTS lessons, practice exercises, videos and model answers on a member learning site.

Graduate recruitment preparation with aptitude practice, video interviews and assessment-centre exercises.

Coding exercises for data and machine-learning study

SQL exercises running against SQLite in the browser

Small Rust exercises beside the language book

Grammar explanations and exercises with answer feedback.

IELTS practice and lessons with writing samples, vocabulary exercises and a speaking simulator.

English explanations and exercises indexed by topic and level.

Language practice with exercises and mentoring

Free music theory exercises for learners and teachers

SQL questions and explanations using one consistent dataset

A directory of French-learning resources and original exercises.

Interface-design guidelines explained through examples and rationale

Study words and concordances in a text corpus

Medical question banks, notes, practical-exam preparation and progress tracking.

Piano learning with songs and graded exercises

Conversation-led audio study with recall and pronunciation exercises.