AMI Trained A to I Guide


Keystone Montessori Charter School

Keystone Montessori Charter School in Phoenix, AZ is seeking an AMI-certified A to I Guide for our toddler program (ages 15 mos to 3 years) starting in the 2021-22 school year.

Founded in 1995, Keystone serves over 290 students from ages 15 months to 15 years on a 5-acre campus in the scenic Ahwatukee Foothills. Our mission is to inspire in children a passion for a lifelong love of learning in an environment, which nurtures independence, creativity, confidence and tolerance while developing a sense of responsibility for self and community based on the principles and philosophy of Dr. Maria Montessori. You will have the pleasure of working with a diverse, loving and supportive community that has help establish and build a reputable authentic Montessori school with a strong local presence.

We invite you to review our website,, to familiarize yourself with our school’s vision, campus, and staff. Competitive pay and benefits.


Laura Hertzler
Phone: 480-460-7312