Melissa is a lifelong teacher.  She began working in classrooms as a teenager and has continued to teach in various settings ever since.  Her most recent classroom experience was teaching math and science to hybrid students.   


Melissa obtained her undergraduate degree at Alma College and her masters degree at Oakland University.  She taught full-time in the classroom until her first of four children came along.  She now spends her evenings and weekends traveling for her children's sporting events, camping with her family, organizing the busy family calendar, volunteering or reading for fun.

Melissa Castonia

MATH 7/6, SCI 6-8

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Colleen Schinzing

Colleen is a Michigan certified teacher with a Bachelor of Science in Education degree from Wayne State University and a Master of Education degree from Saginaw Valley State University.  She began her career in public education and then transitioned to homeschooling in 2007.  Colleen has a passion for teaching and is excited for the blend of classroom and home learning at Dragonfly Hybrid. 


Colleen has been married to her husband for 23 years and has four children: one is in college, one is a high-school senior, one is in middle school, and one is in elementary school.   Her free time is often spent supporting her children in their many athletic endeavors, enjoying time with family or reading a good book.

ALG. 1, ELA 8/9, HIST 8/9