Why Montessori? That is a question many people have asked when we say we would like our kids schooled in the Montessori way. And while I will espouse all our personal reasons in all its glory, this is a great video to get the conversation going.
Alternatively, you could read a great (academic) comparative of three contending education paradigms: Montessori Vs. Waldolf Vs. Reggio Emillia. Or check out this comparative table.