The Portland Montessori School serves children as young as 2 1/2 all the way up to 6th grade. We are AMI Certified and we were founded in 1962. The Portland Montessori School has a 60 year history of providing quality Montessori Education. THE PORTLAND MONTESSORI SCHOOL GUIDES EACH CHILDS JOYFUL QUEST TO REACH HIS OR HER INTELLECTUAL, SPIRITUAL, SOCIAL AND EMOTIONAL POTENTIAL WITHIN A DIVERSE, NURTURING LEARNING COMMUNITY AS WE ADHERE TO THE MONTESSORI PRINCIPLES OF THE ASSOCIATION MONTESSORI INTL.