Mathnasium 315 W Northfield Dr, Brownsburg IN 46112 (317) 754-6284

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Our Team

Our specially trained math instructors will teach your child how to understand math in an individual setting; our unique approach enables us to explain concepts really well and lend a helping hand to every student. Our tutors foster a caring, encouraging environment that helps kids thrive and learn! Read below to learn more about our talented team:

Hello, we're the Gehman Family!

Drew Gehman, Center Director (Middle)

Drew is proud to work alongside his wife, Wendy and his son, Isaac as Center Director and co-owner at Mathnasium of Brownsburg.  A 1985 graduate of Rose-Hulman Institute of Technology (BS, Electrical Engineering), Drew brings a rich blend of education, technical expertise, and community involvement.

Wendy Gehman, Education Director (Left)

Wendy is the Education Director at Mathnasium of Brownsburg.  Prior to Mathnasium of Brownsburg, Wendy was an elementary teacher for Vigo County School Corporation where she taught a combined 4th/5th Grade, gifted and talented class at Sugar Grove Elementary School.  Besides the hundreds of children she's educated in her classroom over the years, she is the proud mother of two boys.  Samuel (youngest), a 2019 Notre Dame graduate, lives in Chicago and works in corporate finance.  Isaac (oldest) joins Wendy as a co-owner at Mathnasium, and you can read more about him below!  During the school day, you can find Wendy teaching 4th grade in Zionsville's Eagle Elementary School.

Isaac Gehman, Co-Owner (Right)

Isaac is co-owner of Mathnasium of Brownsburg.  Isaac is a 2016 graduate of Rose-Hulman Institute of Technology (BS, Civil Engineering).  Prior to opening Mathnasium of Brownsburg, Isaac worked in Anchorage, AK as an engineer with a global construction firm.  While there, he enjoyed rock-climbing, skiing, and salmon fishing - things not commonly available in the Hoosier state.   


Deb Ruckman

Deb has been a lifetime educator in the state of Indiana.  With a Bachelor's in Elem. Education from I.U. and a Master's in Education Psychology from Purdue, Deb began a career highlighted by 18 years as an elementary teacher, 6 years as an elementary principal, 3 years as an instructor for Purdue's College of Education, and 4 years as a consultantfor the IN Dept. of Education.  Through it all, Math has always been her favorite subject to teach!

Deb grew up in Speedway, IN just blocks from the Indianapolis Motor Speedway.  She is the proud mother of three and an even prouder grandmother of two!  She spends her semi-retirement reading, playing with the grandkids and volunteering with nonprofits in the community.  Deb is excited to continue to serve children by providing the instruction they need to excel in mathematics at Mathnasium.


Eli Furuness

Eli is currently enrolled at Brownsburg High School, where he is on an accelerated learning track with plans to graduate in 2020.  Having already completed Pre-Algebra, Algebra I and II, and Geometry, Eli is currently studying AP Statistics.  In addition to his coursework, Eli is a member of Brownsburg High School's Robotics team.  Each year, he and his fellow teammates apply mathematical thinking and problem solving to come up with creative solutions in a robotics competition against other high schools around the country.  Eli is excited to share his love of mathematics here at Mathnasium of Brownsburg!



Kritina StormBrown

Kritina is a real math lover, through and through.  After graduating from Danville High School, she attended Purdue University for Engineering Biochemistry.  Previously working as a Regional Underwriter for Aegis Financial, Kritina now enjoys being the mother of three.  Besides working and volunteering in the Plainfield School System, she often does math and logic games, just for fun!  And the best part, she does all of her math in pen.  Of course, she has everyday hobbies as well, which include knitting, playing the piano, sewing and swimming.  Kritina is a self-proclaimed terrible speller, but that's okay with us.  After all, this is Mathnasium, not Englishnasium! 



Robert Warnell

Robert is a bright, former student from our local Indy-area schools, graduating from Pike High School in 2015 with Academic Honors.  There he exceled through his mathematics learning by studying Algebra, Trigonometry, Statistics, Calculus I and Calculus II.  Robert's love for math isn't limited to the classroom however, as he continues to self-educate and stay sharp through regular studies in textbooks on the subject.  Robert enjoys making personal connections with those he meets and always enjoys cracking a joke or two.  Who says math can't be funny?




Sarah AverySarah Avery

Sarah graduated from IUPUI with a bachelor's degree in secondary math education and has been teaching for the last 7 years. While Sarah currently teaches at Zionsville High School, she has also taught Geometry, Algebra 2, and Discrete at Avon High School as well as Pre-Algebra at Cascade Middle School. Sarah spends her free time reading, playing piano, and spending time with her husband and dog. Sarah is such a lover of math that she and her husband got married on ultimate Pi Day (3/14/15) where the decorations (including her shoes) were based around the Fibonacci Sequence and pie was served rather than cake! 



Sarah Avery

Elliott Neff

Elliott is a full-time learner, currently enrolled both at Western Boon High School and Ivy Tech's Business Administration program.  At high school, he's completed Algebra I and II, Geometry, Pre-Calculus and Trigonometry; he's currently enrolled in duel-credit Calculus.  Elliott is a member of NHS, chess club, Ecology club and also works at the school's Computer Repair Desk.  In his free time, Elliott enjoys applying his math skills in hobbies such as computer repair, auto mechanics, and keeping up with financial news.  After graduating in May of 2019, Elliott plans to pursue degrees in Business Administration and Motorsport Engineering at IUPUI.  Elliott is excited to be sharing his love of math and its applications with students at Mathnasium of Brownsburg!




Evan Osterbur

Evan is currently a Junior at IUPUI pursuing a degree in Psychology, with plans to continue onto graduate school. Before graduating high school, he completed Algebra I and II, Geometry, AP Statistics and IB Math Studies; adding on Finite Mathematics, Calculus I, and Statistics in college. Evan loves working with students, especially those who find coursework challenging. 

In his free time, he loves playing and watching basketball, reading, and spending time with his family and three dogs.