This video shows the key 42 sounds as learned in an AMI training center in the midwest.
Related Montessori Nuggets:
Sandpaper Letters - Single and Double (Phonogram)
Phonogram Key Sounds
|The chart comes in two parts. The background piece and the protractor.|
There are two protractor pieces so there is a back-up when the first wears out.
|Cut out one piece, hole punch and use a brad.|