Staff Contacts

1704 North Center Street
Mesa, Arizona 85201

Map & Directions


You can email the teachers and administrators by clicking on their name.


Ms. Nelleke van Savooyen Executive Director

I established Good Earth Montessori as an AMI Accredited Program in 1991 when I took it over from the previous owners. I started with a class of 5 students and expanded our program to what we are today about 75-85 students. I have worked very hard over the years to make sure that we have a high quality AMI accredited Primary Program and a Charter School Program in Mesa and I believe I have succeeded with a lot of help from Ms. Sandy Holzer and all the parents and staff over the last 21 years..

Ms. Rebecca Gille Office Assistant

Ms. Rebecca has been with Good Earth Montessori since the 2013 school year. She has a background in office management, fashion design and marketing as well as chicken wrangling…in heels. 10+ years as a volunteer teacher in children’s ministries has given her mad skills in child care.


You can reach the teachers between 3:00 and 3:30 PM by phone 480-833-2622.


 0307 GEM   Ms. Melinda Miller AMI Elementary Class 6-9

My name is Melinda Miller, and I have been teaching in Montessori Schools for almost 40 years. I’ve worked with 3-6 year olds, as well as 6-12 year olds. In fact, I taught in the elementary classes here at GEM Charter School in 2000-2003 and 2006-2009, and it’s nice to be back again. I took Montessori training for birth-3 year olds in Denver, CO. My other Montessori training courses (for 3-6 year olds and 6-12 year olds) were in Washington, DC. I have worked in public, private, and charter schools in a number of U.S. cities and in London, England, where I also worked part-time at the Maria Montessori Institute, England’s AMI training center. I live in a condo in Phoenix with my three cats, two of which were born here at GEM and their mother who was smart enough to have her kittens behind the classroom of a cat lover!


0330 GEM     Ms. Nelleke van Savooyen AMI Primary 3-6+

I have been the teacher at Good Earth and GEM Charter for 25 years, I am also the owner of Good Earth Montessori and the Executive Director for GEM charter School.  The last 2 years I have been teaching the primary class and I have really enjoyed being back in the classroom.  The children are the reason why I became a Montessori teacher and why I started my own AMI Accredited School.  I just love watching the children learn from the first day of school and to see them develop at their own pace and accomplish so much by the end of the school year.