Pupils rotate the upper layer to reveal the notes of all Major scales and their key signatures. Requires some cutting out and assembling. Will probably be best done onto card or laminated paper. All black notes shown as sharp and flat - teacher will need to remind pupil that if key signature (shown in window) is made of #s then all black notes should be read as #s. Unfortunately due to the method F# major has 7th degree of scale as F not E# - there is a brief note in the key signature window saying this. I doubt most pupils still using this chart will be venturing into F# major! Gb major no longer exists!