ToolHub
Streamline Tools, Master Productivity
No need for keywords — just describe the task and I'll find the right tool on this site.
For four-year-olds: letters and numbers, 60 seconds, text-to-speech pronunciation, and Mac keyboard-position practice (pink-and-blue theme with a meadow, sky and sun scene).
A typing game for practicing Zhuyin (Bopomofo) symbols (37 symbols + 4 tones), with a Mac-style Dachen keyboard mapping, plus Mei-Jia Mandarin pronunciation and tone audio.
A 'clean hands vs. dirty hands' game for toddlers (ages 3-5). A little bear guides with story-style lines such as 'I really want to eat grapes!', 'Oh no, unwashed hands will give you a tummy ache!' and 'Sticky hands can't touch things!'.
A series of learning games: typing, mental math, reading clocks, music theory, multiplication, plus Fog of War, a StarCraft-style real-time strategy (RTS) game about project management that teaches PMs about supply blocks, technical debt, three layers of vision and trust. Falling, shooting, speed typing: learn while you play.
Movable-do ear training plus staff reading. Ear course (20 lessons): staff + numbered notation, piano sound, solfège, intervals, melodies and chord degrees. Staff-reading course (13 lessons): treble and bass (F) clefs, ledger lines and middle C, grand staff — timed note naming, tap-to-place notes, weak-spot review. Flashcard matching (17 levels, Duolingo-style): tap a staff card and its note name, with timer and combo scoring — from single notes, intervals and chords to accidentals and key signatures with 1–7 sharps or flats; levels up automatically by accuracy.