Hello! My name is Viviana Tambasco. I am excited to be teaching 6th Grade Math and 8th Grade Geometry at OSM. Originally from Venezuela, I have lived in the United States for over 24 years. I hold a degree in Chemical Engineering as well as a Master of Arts in Teaching Mathematics. This is my first year teaching in Chicago, though I have previously taught in Atlanta, GA, Dallas, TX, and Boston, MA. I have two sons—one who is a teacher in New York and another who is completing his Master’s in Mental Health in Boston. In my free time, I enjoy walking around the lake and going to the movies with my husband. I am thrilled to be part of the OSM community and look forward to a wonderful school year!

 As a longtime educator with teaching experience in elementary, middle, and high school settings, I love working with young people. My teaching style prioritizes student voice and inquiry as a means of building students' intrinsic motivation, academic skills, and confidence while also cultivating wonder and joy.

I hold a B.A. from Yale University and a J.D. from The University of Chicago Law School. I am grateful to the many outstanding teachers who have taught me, and I seek to create a learning community of deep curiosity, intellectual rigor, and robust dialogue in my own classroom.

I am the mother of four grown children. I enjoy reading, singing, swimming, baking, and spending time with my family. I live with my husband, John, and my cat, Otto, in the OSM neighborhood.

Hello! My name is Joseph Abraham. I also go by Joe, but students know me as Mr. Abraham. I graduated from Saint Xavier University in Biology Secondary Education, but I enjoy learning and teaching all disciplines of science. Previously, I taught Biology at Reavis High School and Physics at Bremen High School. I am eager to share my passion for science with the students.

Hi! My name is Sara Pinchback; this is my second year teaching at OSM. I started substitute teaching at OSM in the 2019-2020 school year. Before that, I taught middle and high school from 2007-2016. I have been a member of the OSM community since my children joined in 2018, and think it is a very special place. This year, I will be working with 6th, 7th, and 8th-graders in Social Studies. I grew up in Buffalo, NY, and am a diehard Buffalo Bills fan. I graduated from SUNY Geneseo with a degree in Business Management and earned my master's degree from CUNY Hunter in Secondary Education and History. I have lived in New York City, Boston, and Connecticut, but Chicago has been home since 2016.  I love anything science fiction and enjoy spending time with my fam watching or playing sports and traveling. 

Hello, my name is Ms. VanderHye, and this will be my seventeenth year teaching and sixth at OSM. I am beyond thrilled to work with our Middle School team and students this year! I grew up in Chicago in Old Irving Park on the northside, attending St. Viator Grade School and Mother Theodore Guerin High School. I earned my Bachelor's Degree in education from Illinois State University and my Master's of Education degree with a Principal concentration from DePaul University. Here's to a year of beautiful adventures! 

My name is Matt Evenstad. I moved to Chicago two years ago after receiving my undergraduate degree from Minnesota State University, Mankato. For the past two years, I have worked as a Religion and Social Studies teacher in the Archdiocese of Chicago. I was led to OSM after participating in the Archdiocese's Rising Leaders Academy - and what a blessing it has been!

In my free time, I enjoy reading, playing sports at local parks, and running.

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Before beginning my teaching career, I worked in a variety of roles, including as a personal trainer, chef, police department intern, and construction worker. Each of these experiences has helped shape the person and educator I am today.

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I am a passionate educator who hopes to pay it forward by inspiring and empowering the next generation of scholars!

Hello! My name is Ms. Dundas and this is my 5th year teaching middle school math but my first year at OSM. I am looking forward to teaching 7th and 8th grade math this year and so happy to be a part of the OSM community. I moved to Chicago last year from the Boston area where I grew up and got my Bachelor's in Mathematics. I am now halfway through my M.Ed program at DePaul University and look forward to graduating this spring. After school, I am usually playing Yahtzee, hanging out with my two cats (Griffin and Cobweb) or playing volleyball. Looking forward to a great year!