Welcome to our Classrooms

There's much to see here. So, take your time, look around, and learn all there is to know about us. We hope you enjoy viewing our school and learning about our staff. For more information, or to book a tour of the school, please call: 763-631-0202

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Staff and Teachers


School Administrator

Lisa Shields-Ergen Ph.D., has been the school Administrator for Discovery Montessori Academy since opening in 2007. Prior to joining the Academy she was also Discovery Montessori School’s Administrator (our sister school) since 2003. Mrs. Shields-Ergen holds a Bachelor’s degree in Psychology and Biology, a Master’s degree in Business Administration as well as her Montessori credentials, and a Ph.D. in Organizational Psychology. She has been working with children for many years, first working with abandoned Native American children some 20 years ago. Since then her passion for serving the oppressed has developed into a life mission, thus the development of the annual Toys for Tots Gala for the Red Lake Indian Reservation. Mrs. Shields-Ergen has worked in the Montessori classrooms for 16 years and brings a world of culture into the environment. She and her husband of 24 years have four children and reside in the country side of Zimmerman. In her spare time, Mrs. Shields-Ergen enjoys cooking with her family, reading, and writing.

Director of Education/Elementary Teacher

Lucy Amundson has been educating children through the use of the Montessori Method for over 18 years.  She holds a Bachelor's degree in Psychology,  Master's of Education Degree with a Montessori focus along with her Montessori Credentials from the American Montessori Society.  She has a passion for helping children find the joy of learning.  Mrs. Amundson has been the Director of Education and also the Elementary teacher for Discovery Montessori for the past 14 years. In her free time Mrs. Amundson enjoys her small-scale farm with her four children and her husband of 16 years. She also enjoys reading, running and baking.

Music Director

Rebecca Shaw, MT-BC, has been serving children and families through music for 15 years both as a music educator and a board certified music therapist. She has taught music at Discovery Montessori since 2004.  She enjoys designing creative musical experiences that make the most of the delight and enthusiasm children naturally have for music.  Her classes include lots of active music-making experiences, movement, and musical play. Rebecca has a Bachelor's  degree in Music with a speciality in Music Therapy from Southern Methodist University in Dallas, Texas.  She has further training in facilitating early childhood music experiences and completed practical theology studies at Christ for the Nations Institute. In her spare time Rebecca enjoys reading, creating (anything from cupcakes to quilting!) and spending time with her husband of 15 years and 3 children.

Preschool Teacher

Karen Paetznick-Huhtala has been with Discovery Montessori Academy since 2012 and is the current preschool teacher in Childrens House I. She has an A.A. in General Studies and is currently studing  for her Montessori Credentials in Early Childhood Education. Mrs. Paetznick has been working with children for 22 years and has a passion for child development. She resides in the country side of Princeton with her husband and three children. In her spare time Mrs. Paetznick enjoys crafting, scrapbooking, swimming, reading, and spending quality family time together.   

Preschool/Elementary Teacher

Lindsay Paetznick has been working with Discovery Montessori since 2014 as an assistant in both the preschool and elementary classrooms. She has over 10 years of experience working with children and enjoys being part of their growth and development.

Assistant Staff

We have several assistant and volunteer staff members that work with our teachers on a daily or weekly bases. All educational and staff  members are an integral aspect to helping our school be successful. 

Preschool Classroom

Elementary Classroom