Training of Trainers Programme PrerequisitesFollowing are the prerequisites for applying for the Training of Trainers Programme at each level of training. Essential at all levels are AMI qualifications and several years of classroom experience putting AMI Montessori principles in practice. Assistants to Infancy (0–3) Level Prerequisites Children's House (3–6) Level Prerequisites Elementary (6–12) Level Prerequisites Adolescent (12–18) Level Prerequisites Administrator Prerequisites MDDA Prerequisites