I designed this for those of us who will have young beginners in the fall. There are many ways to use my new keyboard. The simplest way to use it is to call it puzzle and let students put it together. Often we assume students know more than they do. Even when they have circled groups of 2 and 3 black keys, sometimes they don’t know how the black keys line up on the white.
You can buy some easy to use laminating sheets to use before you cut out the keys. It makes it a lot easier and they will last longer. This is a two page printable and can make a 3 octave keyboard.