This 4 year old was less distracting to her brothers, the older students, as she happily practiced necessary skills under the guise of fun! :)
Sometimes she sorted by color.Sometimes she sorted by shapes.
Each time she went from left to right (pre-reading skills) and "tonged" (pre-writing skills)to strengthen small motor skills.
I was a Montessori kid, and loved it!
I'd really love to see your pre-school ideas. :)