Teaching Music Reading with Magnetic Musical Notes

I came up with this solution to help people learn how to read musical notes better years ago before high prevalence of the digital age, which allows people to more easily perform tasks such as these on digital screens:

The Western musical notation consists of a five-line notation system where notes are placed along the positions of the five lines.  In general, the higher the note, the higher it is placed; the lower the note, the lower it is placed.

People when first learning music sometimes have difficulty recognizing the notes, especially if they jump around a lot.  One solution I devised was, therefore, to cut soft fridge magnets (such as ones that real estate agents send around) into the shape of a note.  A piece of paper containing the five-line staff would then be placed on top of a piece of sheet of metal (such as using the flat cover of a cookie tin).  The entire apparatus of the metal underneath and five-line staff on paper on top could be placed on the music reading stand, and the teacher could move around the note to ask the pupil or students which note it is, or to actually play the note.

This would be a more dynamic approach to helping kids or adults learn to read music.