Meet the Teachers


I am very excited to be a part of the wonderful staff and students at Grass Lake School as the PreK teacher! I have taught PreK, Kindergarten, and in 1st thru 8th Grade Classrooms as a Teacher, Substitute Teacher, Remote Teacher, and Instructional Assistant and have Degrees in Elementary and Early Childhood Education. I was also a day care provider in my home while being a stay at home mom  to my three kids. I have lived near this area for over 20 years and I love spending time with my family, watching my kids play sports, doing scouting activities, going on hikes, bike riding, and exploring nature and the beach. I am looking forward to the new adventures and exciting discoveries we will be making here in PreK at GLS!

Cheryl Hertzke


I'm so happy to see all the new and second year preschoolers. I have worked at GLS for the past 11 years as an instructional aide and have enjoyed working with the pre-k for the past 3 years. I am involved with my church Prince of  Peace as a volunteer in different ministries. I have 3 awesome sons Matthew, Chris and Ryan. I am grateful to live in Lake Villa near a lake where I've enjoyed many summer afternoons swimming. I also love to walk in nature and reading.

Theresa Heerema