I learned "The Method" with the kids. We were able to provide discovery and education to 30 children between 2-1/2 and 6 years of age.
The classroom is structured, that is true. The child learn rather than are taught. They observe, they perform small tasks, they are responsible for their materials. It's quiet and serene. Some children just watch others perform their tasks and learn from them.
I was amazed how many concepts they picked up: spacial geometry, color gradation, small motor skills, addition/multiplication. We used a combination of tactile squares with letters in sandpaper and phonetics to teach reading.
I loved where I worked. I even considered getting a Montessori certificate and becoming a full-fledged teacher. However, I encountered an instructor who left me cold. She was mostly theory and oblivious to the child.
I agree with the article that no all Montessori is the same. It depends on the training and the teacher. All I can comment on is what I experienced. The teachers provided ample opportunity for creativity through art and music. I don't consider Montessori to squelch imagination and creativity if a child is discouraged from picking up a number stick and marching around like it's a sword or a gun.
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