Beginner6 weeks
Algebra Foundations
Build fluency with variables, expressions and equations — the language of higher math.
- 1Numbers & operations
- 2Variables & expressions
- 3Linear equations
- 4Inequalities
- +2 more steps
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Curated overviews across STEM, humanities and life skills. Pick a subject to dive in.
STEM
STEM
Cross-disciplinary science, tech, engineering and math.
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STEM
Mathematics
From arithmetic foundations to calculus and beyond.
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STEM
Science
How the natural world works, from atoms to ecosystems.
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STEM
Technology
Modern computing, the internet, and digital tools.
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STEM
Engineering
Design thinking and building things that work.
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STEM
Biology
Life in all its forms — cells, organisms, ecosystems.
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STEM
Chemistry
Matter, reactions, and the periodic table.
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Physics
Motion, energy, waves, fields and the fundamentals.
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Coding
Programming fundamentals and computational thinking.
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Featured learning paths
All learning paths Structured, step-by-step
Guided sequences that rebuild a subject from foundations up.
Beginner8 weeks
Intro to Coding
Write your first programs and learn how computers think — no prior experience needed.
- 1What is a program?
- 2Variables & types
- 3Control flow
- 4Functions
- +2 more steps
Intermediate5 weeks
From Cell to Ecosystem
Zoom out from the cell to populations, communities and the biosphere.
- 1The cell
- 2Tissues & organs
- 3Organisms
- 4Populations
- +2 more steps
Intermediate10 weeks
World History Survey
A guided tour from early civilizations to the modern world.
- 1Early civilizations
- 2Classical world
- 3Medieval era
- 4Age of exploration
- +2 more steps
Beginner3 weeks
Money Basics
Budgets, savings, debt and the simple habits that compound over time.
- 1Income & expenses
- 2Budgeting
- 3Emergency funds
- 4Credit & debt
- +2 more steps
Intermediate4 weeks
Think Critically
A toolkit for evaluating claims, spotting bias and forming better arguments.
- 1Claims & evidence
- 2Logical fallacies
- 3Cognitive bias
- 4Source evaluation
- +2 more steps
Academic articles
Browse articles Read, think, apply
Short, thoughtful pieces on how to study, think and learn better.
Study Skills6 min read
Active Recall, Explained
Why testing yourself beats re-reading — and how to do it well.
Read articleScience8 min read
How to Read a Scientific Paper
A practical, non-linear method for getting to the good stuff.
Read articleFinancial Literacy5 min read
Why Compound Interest Matters
The most important idea in personal finance, in one chart.
Read articleLiterature7 min read
Essay Structure, Clearly
A dependable shape for arguments that hold together.
Read articleMathematics6 min read
What Is a Function, Really?
One idea that unifies algebra, calculus and programming.
Read articleCritical Thinking5 min read
Spotting Misinformation Online
Four quick checks before you share.
Read article Revision center
Revise smarter, not longer
High-yield summaries and quick-reference kits for exam season.
- 4 topics
Algebra Cheat Sheet
Mathematics
- 4 topics
Cell Biology Recap
Biology
- 4 topics
Physics Formulas
Physics
- 4 topics
Essay Toolkit
Literature
Learning resources
Tools to help you learn
Templates, planners and curated reading — the practical stuff.
Note-taking templates
Cornell, outline and mind-map layouts you can copy.
Study planner
Weekly schedules built around active recall sessions.
Glossaries
Plain-language definitions for tricky subject terms.
Curated reading lists
Vetted books and long reads for each subject.
Practice question banks
Concept-first questions that build understanding.
Study skills library
Short guides on focus, memory and motivation.
Educational news
All updates What's new
Recent updates, new pathways and refreshed guides.
New
New pathway: Money Basics
Our first Financial Literacy pathway walks through budgeting, credit and long-term saving in three focused weeks.
Updated
Chemistry revision kit updated
Refreshed periodic trends and stoichiometry sections with clearer worked examples.
Expanded
Critical Thinking hub expanded
New guides on evaluating sources, spotting fallacies and mapping arguments.
New
Study skills library launched
Short, evidence-based guides on how to actually study — starting with active recall and spaced repetition.
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