awilson@istemghs.org
440.898.3283

A Northeast Ohio native with a passion for art and technology, Mr. Bailey is thrilled to embark on his fifth year at iSTEM, serving as the Building Administrator. With a deep-rooted commitment to fostering a culture of curiosity and innovation, he is excited to collaborate with faculty, staff, students and families to explore the dynamic intersection of design thinking, creativity, and building a STEM mindset towards future success. His educational background includes degrees from Bowling Green State University (B.F.A. Digital Arts, M.Ed Curriculum & Instruction, Computer Technology Certificate ) and Carnegie Mellon University (M.S. Arts Administration). He has further honed his leadership skills through participation in the Young Audiences and American Express Leadership academies, PAST Foundation Fellowship, and the Ohio STEM Learning Network's Innovative Leadership Initiative.

Outside of school, Mr. Bailey cherishes spending time with his family: wife Stephanie, children Savannah and Oliver, and father Glenn Sr. When he's not exploring new creative outlets or cheering on his favorite Cleveland sports teams, he can often be found immersed in an adventurous table-top session or sitting in a comfy corner with a good book.

gbailey@istemghs.org
440.898.3283

Since earning her Bachelors in 2014, Mrs. VanDyne has provided office support to post-secondary educators at Lakeland, Wheaton College, and Toccoa Falls College. Originally from Ashtabula County, Mrs. VanDyne graduated from Geneva High School. After becoming a mother, she moved to Lake County with her husband and two young daughters. She enjoys playing piano, baking bread, and trying to drink her coffee before it gets cold.

svandyne@istemghs.org
440.898.3283

For those new to iSTEM, I’m your resident environmentalist. I’m passionate about sustainability and have a knack for finding new ways to reduce our impact. Before joining the world of education, I earned a Master’s in Aquatic Ecology and even discovered a new species of fly. I’ve spent the last two decades sharing my love of science with students at Lake Catholic, Andrews Osborne Academy, and iSTEM.

Outside of the classroom, I enjoy spending time in nature with my family. Hiking, canoeing, and biking are our favorite ways to explore national parks. Though I’ve traded coaching, basketball, and baseball for gardening, reading, and running, I still find time to tackle my inbox in the wee hours of the morning.

pwalunis@istemghs.org
440.898.3283

apaolini@istemghs.org
440.898.3283

Mrs. Malchesky earned her undergraduate teaching degree from Kent State University and her MS in Mathematics from John Carroll University. With five years of experience at iSTEM, she has instructed learners of all ages, from middle school to college. A Concord resident, she enjoys teaching close to home. In her free time, she enjoys running and spending time with her five children and husband.

amalchesky@istemghs.org
440.898.3283

Mr. Woodruff is a Miami University graduate and lifelong Northeast Ohio resident.  While at Miami, Mr. Woodruff studied Middle Childhood Education with concentrations in Mathematics and Social Studies.  Outside of the classroom, Mr. Woodruff served as a color commentator for a variety of collegiate sports.

Mr. Woodruff will be teaching 8th grade math, Algebra I, and Geometry.  He has numerous years of experience teaching middle school and high school math.

Mr. Woodruff is a loyal Cleveland sports fan and has previously coached hockey and lacrosse.  In his free time, he enjoys spending time with his wife, walking his dog Gertie, as well as playing recreational hockey.

dwoodruff@istemghs.org
440.898.3283

Mrs. Heppert graduated from Kent State University where she earned her B.S. in Education: Integrated Language Arts (7-12th Grade) degree with a focus on literature, and a Teaching English as a Foreign Language Certification. She also earned her M.S. in Curriculum and Instruction from Western Governors University. This year, Mrs. Heppert is teaching English 1: Literature & Composition, English 2: Research-Based Inquiry & Informational Writing, 8th-grade English, and 8th-grade STEM. This is her 4th year at iSTEM and 5th year teaching. In her free time, she enjoys reading and traveling! She is very excited to share her enthusiasm for literature with iSTEM students.

jheppert@istemghs.org
440.898.3283

aslaybaugh@istemghs.org
440.898.3283

Mrs. Hamilton holds a B.S. in Education: Integrated Social Studies Education (7-12 grades) from Miami University and an M.S. from Western Governors University. This year, she will be teaching American History, World History, Government, and Financial Literacy. When not in the classroom, Mrs. Hamilton enjoys spending quality time with her husband and little man Bennett, tending to her chickens, and off-roading.

mhamilton@istemghs.org
440.898.3283

Ms. Frye has 20+ years in education and is in her 5th year at iSTEM. She was born in New York and moved across the country during her younger years. An active alumni of Gannon University, she completed a Bachelor's degree in Communication Arts/Theater. After graduation she found her passion for education and completed a Master’s Degree in Education from Lake Erie College (Literacy and Reading) and Licensure coursework from Notre Dame Academy. Her early career focused on family literacy and GED preparation along with working with students with emotional needs.

A life-long learner, this summer she completed computer programming and Science of Reading courses. In her free time, Ms. Frye enjoys literature, crocheting/embroidery and runs a small business. She also spends time traveling in and out of the United States. Ms. Frye raised 4 adult children, 2 girls and boy/girl twins and has added 2 son-in-laws to the family. She especially enjoys spending time with her family, which includes reading to and playing with 2 grandsons and a brand new granddaughter.

jfrye@istemghs.org
440.898.3283

Noel L. Bottesch or “Mrs. B” is new to ISTEM this year. She will be teaching Social Studies and ELA for the ISTEM Middle School. Noel graduated from Cleveland State with her bachelor’s degree in Education 1-8. She went further with her education, completing a master’s degree at Marygrove College with a major in the Art of Teaching. Noel has 23 years’ experience teaching grades 6th-8th. One of Noel's favorite quotes is “Be the change you want to see in the world “and Noel is very excited for the opportunity to be that positive influence in students’ lives.

nbottesh@istemghs.org
440.898.3283

Katrina Petropoulos or "Mrs. P"  is new to ISTEM this year.  She will be teaching Math and Science in the 6th  and 7th grade.  Katrina Petropoulos graduated from SUNY Geneseo with a BS in Biochemistry.  She has worked in research labs for the government, gaining practical STEM experiences.  She finished her teaching certification from Cleveland State in middle school Math and Science content areas.  Mrs. Petropoulos goal is to help students understand that STEM is everywhere in their daily lives.  This year her goal is to give students positive experiences to work on their own journey to a STEM education, career path, and future aspirations.

kpetropoulos@istemghs.org
440.898.3283

Mr. Geizer graduated from Michigan State University in 2018 with a B.S. In Computer Science. While earning his professional teaching license, he taught physics, physical science, astronomy, programming in C++ and Java, and game design. During this time he also coached a state-level-competing FTC robotics team.

Outside of school, he enjoys playing and developing games: both the tabletop and video variety.

zgeizer@istemghs.org
440.898.3283

Mrs. Fischer earned her Masters of Arts degree in Counseling and Art Therapy at Ursuline College. She is a Licensed Professional Counselor under The State of Ohio Counselor, Social Work and Marriage and Family Therapist Board. She has been with iSTEM for four years and the ESC of the Western Reserve as a licensed counselor supporting students and families across Northeast Ohio for over 13 years.

Outside of school, Mrs. Fischer enjoys spending time with her family, gardening and traveling.

dfischer@istemghs.org
440.898.3283

Mrs. Cvelbar (s-fell-bar) or “Mrs. C” as she is called around the building, has been an asset to our school in many ways. You will find her working with students that are on a SPED plan or working with students that are struggling with classes. She also helps around the building as our support staff and building substitute teacher. When Mrs. C is not at iSTEM, she loves watching her 3 boys play in their sports, volunteering with Scouting, and finding a moment to rest! Watch for her snacking around the school--especially on dark chocolate!

lcvelbar@istemghs.org
440.898.3283

Mrs. Golden earned her BS in Psychology from Cleveland State University, and her MS in School Counseling from Walden University in 2024. This is Mrs. Golden’s first year as a school counselor, though she has experience working with students of all ages, in a counseling-related capacity. Mackenzie is a lifelong Lake county resident, and is a Perry High School alum. In her free time, she enjoys creating stained glass, reading a good book, or snuggling with her two dogs. 

mgolden@istemghs.org
440.898.3283

Mrs. Tucker has been with iSTEM for 9 years.  She earned her BA and MEd from John Carroll University. She earned her Superintendent license from Cleveland State University and completed doctoral coursework, with a focus in STEM education, at Northcentral University. In addition she has been an adjunct professor at Notre Dame College. She began her career as a classroom teacher, promoting cross-curriculum instructional strategies and encouraging students to experience the wonders of science. Prior to joining iSTEM she served as a school administrator for Willoughby-Eastlake City Schools, Newbury Local Schools, and Mayfield City Schools. With a rich history of individualized education, both intervention and enrichment, her focus is on providing opportunities that increase the rigor of academic experiences for all, based on the individual needs of all students.

Mrs. Tucker is a long-time resident of Geauga County, where she resides with her husband. She enjoys spending her free time with her husband, adult son, and her two fur babies, Larry and Hank.