Explanation
What Japanese sounds like
Japanese timing is counted in moras: short, even beats. Five vowels do the vowel work.
あ is a, い is i, う is u, え is e, and お is o. Each character is one beat. う is an unrounded “oo”, not the English word “you”. え does not glide into “ay”, and お does not glide into “oh”.
あいうえお is five beats, not one slurred word. Romaji on this page is a temporary spelling aid. The characters are the writing.
あいうえお
The five vowels, in chart order.
あお
Two moras. This is also the word for blue; you do not need that meaning yet.
いえ
Two moras. Later this writing is also the word for house.
You do not need a Japanese keyboard. The practice screens include kana keys. Romaji will be hidden once you turn that aid off in Settings.
These notes have not had a separate native-speaker editorial review.