About Our Teachers

Mrs. Barduson

My name is LeAnn Barduson and I am originally from Brandon, SD. I am an Augustana College graduate with my Bachelor of Arts degree in Math, Spanish, and Education. I have been a teacher in Worthington High School since 2013.

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Mrs. Berg

Growing up in Chicago, Illinois did not prepare me for the cold winters of Minnesota, but it did prepare me for the welcomed diversity of the Worthington School District. As one of the Math teachers at the ALC and the Trojan Learning Academy instructor, I am putting my B.S. degree in Mathematics from the Southern Illinois University – Edwardsville to good use.

Seeing students become successful in class is one of my greatest joys as a teacher. The challenges they give me encourage me to continue on the path of education.

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Dr. Bonnstetter

I started my career as a paraprofessional, and attended SMSU to earn my B.S. in Secondary Math Education. I taught gr. 7-12 math at Murray County Central for nine years, and earned my M.S. in Education: Math Emphasis at SMSU during that time. In 2005 I was hired at SMSU and worked there for 16 years in the Education department, where I primarily taught courses in secondary teaching methods and technology. I was also responsible for the accreditation and assessment of our licensure programs and served as the teacher licensure officer for many years. I earned my Ed.S. in Technology for Education and Training at the University of SD in 2005 and my Ed.D. in Curriculum and Instruction (also at USD) in 2007. The bulk of my research has been in dealing with math anxiety. I am also very interested in teaching math to English Learners and completed post-doctoral work in that area. I retired from SMSU in May 2021, and then decided to return to my first love of teaching high school math. I have 4 grown children and 12 grandchildren, and I love spending time with family, reading, gardening, sewing/crafting, and traveling.

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Ms. Hochholter

My name is Mackenzie Hochhalter. I am from the Sioux Falls, SD area and went to school in Brandon, SD. After high school, I went to South Dakota State University (SDSU) in Brookings, SD. I graduated from SDSU in May of 2021 with a B.S. degree in Mathematics with a Teaching Specialization. I started teaching here in Worthington in 2021. In my free time, I love baking treats for my friends and family.

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Mr. Johnson

Hi, my name is Kyle Johnson. I am one of the math teachers in the high school this year. This is my second year teaching but my first year in Worthington. Over this last summer I have gotten married to my beautiful wife Libby and we now live here in Worthington. Some hobbies that I have are music, disc golf, sports, and board games. A fun fact about me is that during college I would drive to Sioux Falls for video game tournaments with cash prizes and that became my main source of income during college. I am looking forward to getting into the school and getting to meet all of the new faces and new students!

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Mr. Sedler

My name is Ryan Sedler and I am originally from Climax, MN. I am a Mayville State University (NorthDakota) graduate with a B.S. degree majoring in Math/Education along with a minor in Coaching.

My goals as an educator are to help students to be the best they can be and for students to enjoy math class all while improving a little more each day.

My personal interests include traveling ( Some places I have been to are Italy, Belgium, Germany, Switzerland, France, Holland, and the Philippines), going to concerts, and playing and watching most sports.

An interesting fact about me is that I was born in Germany.

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Mr. Sheldahl

Originally from Elmore, “Minnesnowta,” I actually started my educational endeavors as a tutor while I was in college, working privately, at learning centers, and online through America Online(R) Education Center. (Those of us old enough remember the “You’ve got mail” days). I have been teaching and tutoring for many years and acquired vast, yet diverse, experiences. I received my Bachelor of Science in Mathematics Education from University of Northwestern, St. Paul in 1995. I received my Master of Science in Education Technology at Minnesota State University Mankato in 2012, since my original love is to “tinker.” My wife is a choir teacher, and I have four (grown) children, one of whom is teacher, and three grandchildren. They are my joy, with whom I like to read, bike, trail, and cook food (my favorite hobby besides outdoor games).
My favorite quote comes from Jaime Escalante, “Ganas is all you need.”

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Mrs. Tripp

Since 2007, I have taught math at Worthington High School. I earned my degrees in Mathematics and Secondary Education from Augustana College and my master’s in Education with an emphasis in Mathematics from SMSU. I teach Accelerated Geometry, Algebra 3, AP Statistics, Pre-Calculus, and AP Calculus. 

What I enjoy most about teaching is that each day is a little different because of students and staff. They seem to constantly find new ways to amaze me.

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