Mathnasium 8032 S Yale Ave, Tulsa OK 74136 (918) 574-2222 Ext. 1

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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:


Moriah Widener, Center Director

Moriah has been teaching since 2007 and holds a B.S. in K-8 Education and a M.S. in Mathematics Education. Throughout her time as a teacher she worked with students in Tulsa Public Schools and Jenks from 2nd-6th grade, as well as undergraduates from Oklahoma State University where she taught mathematics courses for the College of Education.

She has received multiple awards for her excellence in the classroom and leadership in math education. She is the recipient of the Presidential Award for Excellence in Mathematics Teaching in 2016 which is awarded by the President of the United States and the National Science Foundation to the top 100 math teachers in the country. It is considered the highest honor bestowed upon math teachers in the U.S. Other honors and awards include Jenks West Intermediate Teacher of the Year, Jenks Vision of Excellence Award, OSU’s Rising Star Award, and the Oklahoma Exemplary Educator Award. 

Moriah was the first employee to join the South Tulsa Mathnasium team when we opened our doors in 2010 when she fell in love with the Mathnasium method and the work we do to help students grow in their mathematics skills and confidence. She loves spending time helping students develop their understading of math and break down barriers, so that they can look to the future without perceiving math as a limitation. She is honored and excited to be at Mathnasium serving our students and parents as the Center Director for South Tulsa.

Moriah's passion for mathematics spills over to her time at home with her family as well. She loves to spend time with her husband and daughter exploring nature and spending as much time as possible off the grid. Even on these adventures, she seeks the beauty of mathematics and can often be spotted taking pictures of objects with incredible patterns and symmetry or jotting down ideas for math problems.

Vane Lucas, Owner

Vane holds a BSE in Mechanical and Aerospace Engineering from Princeton University and an MBA from the Wharton School of the University of Pennsylvania. During his career, he has worked as a heat transfer engineer for IBM, a strategy consultant to leading financial institutions and he spent 17 years as the head of consumer strategy for Bank of Oklahoma.

Vane has loved math since he was a child and always dreamed of teaching math sometime in his life. In addition, he’s always viewed mentoring and teaching as a key part of his job and his life. He has always mentored younger employees under his supervision, he has taught Sunday School for several years, he coached youth sports, and tutored middle school and high school math students.

Vane and his wife Ginger have a grown son, David, and a dachshund. Vane has traveled to all 50 states and 12 countries. He loves reading, movies, computers and woodworking. Vane serves on the Board of the Friends of the Tulsa City-County Library and he has been a contestant on Jeopardy!


Jennifer Wentz, Assistant Center Director

Jen Wentz has worked with students of all ages for the past decade in a variety of settings. In her hometown of Girard, KS she worked with students tutoring and working with students in public schools, through her church and with high-risk students who needed her care and guidance to get through their math courses. Jen recently moved to Tulsa and was excited to learn about Mathnasium! She became an instructor right away and she hopes to continue to grow her role as a math instructor here while helping students through her passion for mathematics.



Josh Gregory, Assistant Center Director

Josh currently teaches math full time at Connors State College in Warner, OK. He has a master’s degree in mathematics from the University of Arkansas. Josh taught secondary school (Algebra 2, Pre-Calculus, Trigonometry, and AP Calculus) for four years. Josh has a passion for teaching mathematics to all age groups, and has a well-rounded understanding of mathematics at all levels. His hobbies include playing music, skateboarding, and doing math for fun!  


Jerry Knoll, Lead Instructor

Jerry earned a BS-Mechanical Engineering degree from Texas Tech University. His career includes 28 years with Halliburton Services in Halliburton’s Equipment Design Engineering Department in Duncan, Oklahoma, serving as Department Manager for the last 10 of those years. A downturn in the oil industry led to a 12 year career with Northrup Grumman in Washington, DC and Oklahoma City under contract to the US Government, performing specialty vehicle specification design work and project management of specialty vehicle acquisitions. He has been active in church as a youth and adult teacher, Deacon, and Elder. 

Now retired, Jerry enjoys sports and travel, his wife, son, daughter, and 7 grandchildren. He helped his children and grandchildren understand math throughout their public schooling and being a Mathnasium instructor allows Jerry to continue to interact with and help students to understand that math can be their friend and lead to greater confidence in school and in life.

Gail Cobb, Instructor

Gail earned a B.S. in Chemical Engineering from the University of Michigan (Go Blue!).  Her first job was Quality Engineer for IBM in Tucson.  She then landed a position as a Research Engineer for Dowell, an oil well services company that was a division of Dow Chemical located here in Tulsa.  A downturn in the oil industry led to a move to Dallas where Gail again worked as a Certified Quality Engineer.  She and her team of engineers were responsible for implementing Statistical Process Control (SPC) in the manufacture of night vision equipment, and also designed and taught an SPC course to the Manufacturing department.   It was a very successful and rewarding experience.

 Gail took a 20-year break from engineering to be a stay-at-home mom.  Now that her two Holland Hall graduates are pursuing their college degrees, Gail is an empty-nester that has joined the Mathnasium team, and has found the teaching experience once again very satisfying and rewarding.  Gardening is a passion of hers, along with cooking.

Olga Dolberg, Instructor

Olga was born and educated in the Ukraine.  She graduated from the Kharkov University with a master’s degree in mathematics.  She worked for 30 years in the Ukraine as an educator at several schools and universities and she also worked as a programmer.  Olga likes to listen to music, read, travel, watch tennis and communicate with friends.

Steve Griffiths, Instructor

Steve grew up mostly in Missouri.  He graduated from the University of Tulsa with a BS in Math and a Masters of Teaching Arts and has a current Oklahoma Teaching Certificate for Math; grades 7-12.  Steve taught Math for 10 years at TPS, and then worked 22 years in the American Airlines computer department. As well as working at Mathnasium, he volunteers two days at Cancer Treatment Center of America in Tulsa.  Steve enjoys running 5K races, golf, and singing in his church choir.  He and his wife Jan enjoy attending TU football and basketball games, and spending time with their two grandchildren. 

Ben Troung, Instructor

Ben is a student at the University of Tulsa planning to major in Mechanical Engineering.  He is from Tulsa and graduated from Holland Hall High School in the top 10% of his class in 2017, completing calculus by his sophomore year.  He plays violin in the TU orchestra and is involved in the Sigma Chi fraternity.  His hobbies include playing guitar and tennis.  He has tutored students for around 3 years. 

Kaden DeCamp, Instructor

Kaden is currently a senior at Jenks High School and plans to attend the University of Oklahoma in the fall of 2019. He intends to major in Biomedical Engineering with a minor in mathematics. He has experience in Calculus through Calc 3, Linear Algebra and Differential Equations. Kaden loves working with kids and enjoys serving his community through volunteering with Special Olympics at his school. His hobbies include reading, listening to music, and spending time with friends.  

Matthew Samuelson, Instructor

Matthew grew up in Tulsa and Oklahoma City and graduated from Francis Tuttle's Pre-Engineering Academy in Edmond, OK. Afterward, he studied Electrical Engineering at Oral Roberts University where he earned a bachelor's degree in 2018. While at ORU he worked as a Peer Tutor, assisting fellow students i multiple math and science courses. 

Matthew is passionate about helping students grasp difficult concepts and was named ORU's Tutor of the Year in 2016. In his free time, he plays indoor soccer at Soccer City, volunteers with Young Life, and records music with his older brother. 

Shane Redmond, Instructor

Shane has lived in Tulsa all of his life. He has been a student at Holland Hall for the past 4 years. Prior to Holland Hall, Shane attended Undercroft Montessori School. He has always had a love for mathematics and is thrilled by learning. He partakes in his school’s band and jazz band as well as the Tulsa Youth Symphony Orchestra. He enjoys music, games, and spending time with friends.

Laura Nash, Instructor

Laura was born and raised in Virginia and moved to Tulsa in 2014 to attend Oral Roberts University.  In 2019 she obtained her Bachelors of Science with majors in both Biology, pre-medicine, and Missions. She is taking a year off from school to work and volunteer with local clinics in Tulsa; during this time, she is also studying to take the Medical College Admission Test and prepare her medical school application for attendance in the Fall of 2021. 

Having grown up the fourth of six children to a mom who had an in-home daycare, Laura has developed a passion for working with children.  With over 10 years of experience herself, Laura has tutored, nannied, and worked as an optometric technician for a pediatric ophthalmologist.  In her free time, Laura enjoys reading, traveling, and photography.

Katelyn McElhaney, Instructor

Katelyn is a Tulsa born native. She graduated from Oklahoma State University in 2017 with a B.S. in Elementary Education and a minor in Accounting. She is a 5th grade math and science teacher at Jenks West Intermediate. She loves teaching with the district that she attended K-12. She loves working with kids and pushing them to realize their potential. In her free time she likes to go to the lake with her family, travel with her husband, go on walks with her dog, and do puzzles.

Jake Mulready, Instructor

Jake is a junior at Jenks High School and has a passion for math. Jake’s math experience has taken him through Calculus and Differential Equations. He plans on attending college and going into Aerospace Engineering. He is involved in young life, church youth group, and a summer camp called Shepherd’s Fold. Jake loves developing the passion he has for math in other kids! He also loves to listen to music, play football/track/ultimate frisbee, and hang out with his friends

Erik Asbjornsen, Instructor

Erik was born in Illinois but has lived in Oklahoma for most of his life. He has worked through BC Calculus at Holland Hall and has a love for mathematics. He is excited to work at Mathnasium to share his math skills and enjoys working with students. Erik’s hobbies include reading, coding, and playing video games.


Michael Samuelson, Instructor

Michael earned a BS in Chemistry from Oral Roberts University and an MS in Chemical Engineering and Technology Management from the University of Tulsa. His career has included over 36 years with Schlumberger in various positions of research, training, management and engineering. He has authored or co-authored numerous publications covering the technologies he’s worked with, including high temperature hydraulic fracturing fluids, proppant flowback control, environmentally friendly organic solvents, encapsulated (delayed release) fluid breakers and scanning electron microscopy evaluations of matrix acidizing. Following retirement from Schlumberger, he has been a substitute instructor at various schools including Francis Tuttle Pre-engineering Academy in OKC, Deer Creek and Edmond public schools and Tulsa Technology Center, focusing mainly on math, science and engineering courses. His main motivations during his career have been his faith and his family, along with an ongoing desire to help develop technical excellence in those he has the privilege to work with.

Michael and his wife Rachel raised four sons, and he now loves being a grandfather to their children, enjoying all the family activities that involves. He also enjoys reading and the occasional “family guy night” to go see a current movie. 

Nanya Nambiar, Instructor

Nayna Nambiar was born in India and came to the United States with her family when she was only three months old. She has moved around to a variety of places including New York, New Jersey, Kentucky, Texas, and Tulsa. Nayna has been in Tulsa for the past three years and is a junior at Holland Hall. She plans to pursue medicine in the future and  loves mathematics and problem solving. In addition to her love of math, she enjoys giving back to her community and volunteering at the food bank, St.John hospital, and participates in Youth Philanthropy Initiative. She takes part in Choir, Show Choir, Student Government, HOSA, and is a student ambassador.  

Evan Isbell, Instructor

Evan Isbell is attending the University of Tulsa as a Freshman pursuing a degree in Mechanical Engineering with a minor in Business Administration. Evan spent his entire grade school career at Jenks High School and graduated as a Salutatorian. His hobbies include fixing computers, spending time with friends, and playing lacrosse, which he plans to help start up at TU. Evan is experienced in math all the way up to Differential Equations and is proud to have taken Calculus BC as a freshman in high school.

Jaxon Castillo, Instructor

Jaxon is currently a senior at Holland Hall High School, and will graduate in Spring of 2020. He is planning on attending the University of Oklahoma, majoring in Psychology with a Pre-Med focus. He has lived in Tulsa since 2001, and has attended Mathnasium since 2017. Jaxon enjoys reading science fiction novels, as well as listening to podcasts and playing soccer. He loves helping kids, and has participated in several years of summer camps and tutoring in his school, all with the focus of helping kids learn and have fun. Outside of school, he is also a part of the Tulsa Youth Symphony Orchestra playing the Viola.

Tyler Tan, Instructor

Tyler is currently a junior at Holland Hall Upper School and wants to go to Rice University in the fall of 2020. He intends to major in Electrical Engineering. He has experience in mathematics all the way to Calc BC. Tyler loves working with kids and has served as a mentor and tutor at the Tulsa Boys Home. His hobbies include tennis, playing clarinet, and spending time with friends.