Category
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.
Practical tasks
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.
Approved sites
These are approved because they solve a concrete problem, explain themselves clearly, and are useful without requiring a long sales pitch.
Score 98
LearnFree lessons in math, science, computing, and more.
Best used when
self-study sessions and just-in-time knowledge
Review lens
Skill drills, study aids, references, and quick explainers with a narrow focus.
Score 75
LearnOnline courses from top universities
Best used when
self-study sessions and just-in-time knowledge
Review lens
Skill drills, study aids, references, and quick explainers with a narrow focus.
Score 75
LearnLanguage learning platform
Best used when
self-study sessions and just-in-time knowledge
Review lens
Skill drills, study aids, references, and quick explainers with a narrow focus.
Score 75
LearnInteractive coding lessons
Best used when
self-study sessions and just-in-time knowledge
Review lens
Skill drills, study aids, references, and quick explainers with a narrow focus.
Score 75
LearnComputational knowledge engine
Best used when
self-study sessions and just-in-time knowledge
Review lens
Skill drills, study aids, references, and quick explainers with a narrow focus.
Score 75
LearnIdeas worth spreading
Best used when
self-study sessions and just-in-time knowledge
Review lens
Skill drills, study aids, references, and quick explainers with a narrow focus.