Orthodox Montessori kindergarten age must be mixed, blended learning three to six years old. In my classroom practice in the United States when the observation, Montessori mixed age teaching is a beautiful picture. In a Montessori classroom, a group of about twenty or thirty children, felling the beans if they have children, many children come over to care about, take the initiative to help. If new to the children, alumni will come take care of the Environment. Students love for each other, mutual care, mutual learning, a small child in order to set an example for the older children, especially when the big kids do the math, language work, a small child stared at the side: "wow! Is awesome! "eyes full of admiration, when found in the hearts of these children an idea:" I hope I'll have to like him. "" I hope I'll have to do the math, doing so well. " 

Conversely, some people will ask: "good for small children, and that the large children?" Is a big advantage to take care of young children to learn, learning self-discipline, for example, be inspired by a sense of responsibility and sense of honor, so that harvest is priceless. I have observed a small girl in the U.S. case, her year-old freshmen, is really a little trouble in the classroom, what people are allowed to touch her, She has her own field, if someone "out of bounds" to immediately hit back, What people do not shake it, very self-centered. But she spent two years in the Montessori classroom, then, slowly into her field of work, slowly put, until her third year of admission, which is five years old, she suddenly found themselves the largest class children, Hey! Erupted in different, sense of honor comes, whenever a new-year-old came in to take care of immediate care in the past, she not only not self-centered, but also be able to see the needs of others, active concern for others, this is the traditional not see the class phenomenon.