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Category

Learn

Learning tools should help someone learn by doing: practice, feedback, and repetition.

Editorial note

We like references that make a small skill easier to pick up fast.

What we look for

Skill drills, study aids, references, and quick explainers with a narrow focus.

Best for

self-study sessions and just-in-time knowledge

Useful pages in this category should explain the job they solve quickly and link to a trustworthy destination.

Use it when

  • Practice a small skill until the pattern becomes familiar.
  • Look up a quick explanation while you are in the middle of a task.
  • Use a narrow reference instead of a broad course when you only need one answer.

Not a fit

It is a poor fit for learning pages that cannot show the lesson, the exercise, or the result without heavy marketing copy.

Actions

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Practical tasks

What people actually do here

Practice a small skill until the pattern becomes familiar.

Look up a quick explanation while you are in the middle of a task.

Use a narrow reference instead of a broad course when you only need one answer.

Related categories

Start with the category that matches the task, then move sideways if the use case is broader.

EducationResearch

Approved sites

A few practical picks

These are approved because they solve a concrete problem, explain themselves clearly, and are useful without requiring a long sales pitch.

Score 98

Khan Academy

Learn

Free lessons in math, science, computing, and more.

Visit site

Score 75

Coursera

Learn

Online courses from top universities

Visit site

Score 75

Duolingo

Learn

Language learning platform

Visit site

Score 75

Codecademy

Learn

Interactive coding lessons

Visit site

Score 75

WolframAlpha

Learn

Computational knowledge engine

Visit site

Score 75

Ted Talks

Learn

Ideas worth spreading

Visit site