Montessori St. Nicholas Centre - London based Montessori teacher training. Distance learning by written correspondence, with workshops and practical examinations, leading to diplomas at the foundation (birth to 6 years) and advanced (6 to 12 years) levels. United Montessori Association - Montessori Teacher Certification Program by correspondence. Program details, pictures, contact information. Montessori for the Earth Distance Learning - On-line Montessori distance learning for parents, home school, teachers, and aides by a certified Montessori teacher. North American Montessori Teachers' Association (NAMTA) - Publications, conferences, networking, and information for Montessori teachers. Kent & Sussex Montessori Centre - Training for teachers of nursery age children. College syllabus and course details. Modern Montessori Training Centre Singapore - Offers the Diploma in Montessori Method of Education. North American Progressive Montessori Teacher Training Center - Distance/correspondence Montessori Training leading to diploma. Established 1985.