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Quizzes, trainers and simulators for learning something. Star the ones you use to keep them on top.

Flags of the world
Flash cards for every flag in the world, with facts about each country.
Open How it's built
Math quiz
Mental maths you answer out loud, alone or racing friends.
Open How it's built
Pianotimen
Kids' songs on a real piano: see which key comes now and next.
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Sing the Note
Sing the note you're given and watch how close you get.
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Absolute Pitch
Hear a note and name it. Start with two and unlock more.
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Compass
Learn to take a bearing with an orienteering compass on a real map.
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