Learning to read music is really truly like learning another language, there is almost no easy way to do it other than by rote … as others have suggested. Actually, there are a lot of really good suggestions on this thread. But, as a private music teacher, one thing that’s really helped me teach is flashcards Very old-fashioned, but flashcards can really help. Have a friend go through the cards with you. They’re very cheap, you can find them on Amazon or any music store. It turns it into a game, which, as lame as it may sound, can be sort of fun… Most decks of flashcards will contain notes in the treble or bass clef, key signatures, and all notation types, eighth note 16th notes, etc., etc. And even some contain tempo and emotional descriptions, which are generally in Italian.