L. McGuine
I’ve been going to the Mathnasium for 4 months and my math skills have been improving. All of the instructors ...
See more reviews hereL. McGuine
I’ve been going to the Mathnasium for 4 months and my math skills have been improving. All of the instructors ...
See more reviews hereOur Results
94%
Math Skills
of parents report an improvement in their child’s math skills and understanding.
93%
Attitude
of parents report improved attitude toward math after attending Mathnasium.
90%
Success
of students saw an improvement in their school grades.
Our Results
Math Skills
of parents report an improvement in their child’s math skills and understanding.
Attitude
of parents report improved attitude toward math after attending Mathnasium.
Success
of students saw an improvement in their school grades.
At Mathnasium of Johnston-Grimes, our specially trained tutors use the Mathnasium Method™ to help students build a deep understanding of math. This proprietary teaching approach blends personalized learning plans with mental, verbal, visual, tactile, and written techniques, ensuring instruction is tailored to each student’s unique needs and learning style.
The Mathnasium Method™ is designed to create a solid foundation for math excellence, helping students truly understand—and even enjoy—math.
Our caring, specially trained math tutors in Grimes provide face-to-face instruction in a supportive and engaging group environment. We work with K-12 students of all skill levels, both in-center and online, to help them reach their full math potential.
Learn how Mathnasium tutors helped Malachi gain confidence in math.
At Mathnasium of Johnston-Grimes, students receive personalized learning plans designed around a detailed assessment of their skill level, challenges, and academic goals.
This customized approach helps students learn at their own pace while strengthening critical thinking, problem-solving skills, and the confidence needed to succeed in math.
Discover how Mathnasium helped Maddie transform her math skills to achieve more confidence in the subject. Initially struggling with the lowest math grades in her class, Maddie worked with our tutors using a personalized approach tailored to her specific needs.
Math Tutors Near You
We specialize in math-only instruction with a customized and fun learning approach that delivers results. We proudly serve neighborhoods and schools in Johnston and Grimes, including:
Specially Trained and Caring Team
Lauren Ness
Center Director
Lauren grew up in Virginia and moved to Iowa in 8th grade. She graduated from Iowa State University in 2018 with a degree in elementary education. She has tutored students in math since 2018 and loves watching her students grow and learn! In her free time Lauren enjoys reading, cooking, swimming, and playing board games with family and friends.
Click here to meet our entire team!
Favorite number: 4, because it is an even number and the day she was born.
Favorite math joke: Why was 6 afraid of 7? Because 7 8 9! (7 ate 9)
I love Mathnasium because: Mathnasium allows students to grow their number sense and gain confidence in math. The environment at Mathnasium is very inviting and friendly. I enjoy seeing students at the center become excited about math and gaining new math skills.
We’d love the chance to help your child succeed in math—enroll today!
Jennifer Speer
Owner
Jennifer has a unique perspective that allows her to understand your kids and help them.
She is a successful business owner and homeschooling mom of 3! She has the perspective of an educator as well as a busy parent and knows the challenges of both. Jennifer knows how to engage the kids and hold their interest. She keeps them progressing in math in a way they will actually enjoy!
Jennifer has always had a strong grip on Mathematics, earning her B.B.A in Finance at Southwest Texas State University and then owning and operating successful businesses alongside her husband James.
After discovering Mathnasium and seeing what it can offer kids, they made a tough decision to sell their previous business and start all over again. As scary as that sounds, they knew that parents wanted the best education options available for their children. Now she and James have expanded to multiple locations and have thousands of amazing success stories as a result of the passionate instructors, inspiring learning environment, unique teaching style, and world-class curriculum at Mathnasium!
Favorite Math Joke: There are 3 kinds of people in this world... Those who can count, and those who can't.
Fun Fact: Graduated college in 3 1/2 years with a 4.0!
I love Mathnasium because: I get to be a part of a great organization that changes kids' lives! Who wouldn't want to be a part of that?!?
Larry Martinek
Creator of the Mathnasium Method
Larry has spent his entire career finding a better way to teach math. From inner city public schools, to acclaimed magnet schools, to leading private and parochial schools, Larry has served as both a classroom teacher and as an educational consultant. He has designed curriculum, teaching strategies, and teaching materials to help students and teachers learn math more effectively. He has trained teachers in the art and science of boosting students' ability to “do” math, thereby increasing students' math scores and feeling of self-worth. Larry is the developer of Mathnasium’s educational program – one of the most comprehensive and innovative curricula ever produced for teaching math. While Larry is not an Instructor at our Center, he is a valuable asset we can call on to ask about specific students' scenarios for guidance and advice. This has helped to make visits more productive and enjoyable for many of our students.
Sarah Mihm
Lead Instructor
Sarah is currently an environmental engineer at the Iowa Department of Natural Resources. Sarah went to Iowa State University and graduated in 2017 with two Bachelor's degrees in Industrial Engineering and Sociology. Sarah was a camp counselor throughout college and loves working with kids of all ages.
Favorite number: 11. Two ones is better than one.
Favorite math joke: Why won't Goldilocks drink a glass of water with 8 pieces of ice? It's too cubed.
In five years, I will be: Hopefully living abroad.
I love Mathnasium because: I like encouraging young minds to be proficient in math. Math is used in so many aspects of life and it's helpful to know the tips and tricks to make life easier.
Syon Aggarwal
Instructor
Syon is a high school student at Johnston. He is always looking forward to learn and try new things. He has always been into math from a young age. Syon is a part of numerous extracurricular activities and clubs. When he is not working or studying, he enjoys coding, playing basketball, running and spending time with his family.
Favorite number: 19. It’s my lucky number and the jersey number I wear for sports.
Favorite math joke: Why do plants hate math? Because it gives them square roots!
In five years, I will be: Graduated high school and starting my college career.
I love Mathnasium because: I was a student here and I learned so much! It’s a fun learning environment for everyone. I love to show kids how fun and interesting math can be.
Vye Nayaka
Instructor
Vye is currently a high school student at Waukee Northwest High School. She is involved in many activities including wrestling, mock trial, and so much more! She is very passionate about helping people of all ages and loves to spread her knowledge to the world!
Favorite number: 97 because it is the only prime number in the 90's and 9 and 7 have always been lucky to me!
Favorite math joke: PLAN = (P+L)(A+N)= PA+PN+LA+LN Your Plan has been foiled!
In five years, I will be: In college studying Psychology to become a lawyer.
I love Mathnasium because: It allows kids to reach their full potential in their math skills!
Noah Olsen-Daniel
Instructor
Noah is a junior at Dowling Catholic High School in West Des Moines, Iowa. He was originally born in Vietnam, but was adopted and raised in Iowa. He hopes to go to college and study the physical sciences, and then pursue a graduate degree. In his free time, Noah can be found drawing and doodling on any piece of paper he can get his hands on.
Favorite number: 3- the amount of siblings and I have and a common number in all forms of media.
Favorite math joke: A pig without Pi is 9.80
In five years, I will be:Attending college, probably (and preferably) studying a physical science such as chemistry or physics.
I love Mathnasium because: It expands the concepts of math beyond what might be a suffocating classroom environment in order to teach kids to truly understand math and what makes it so interesting.
Students can take 3 easy steps to enroll at Mathnasium.
All students begin their Mathnasium journey with a diagnostic assessment that pinpoints what they already know and what they still need to learn.
FAQ
Mathnasium of Johnston-Grimes is located at 2810 SE Grimes Blvd, Grimes, IA 50111, at the intersection of 28th Street and Grimes Boulevard, between Scooter’s Coffee and Jimmy John’s.
Our center offers easy access for families in Johnston, Grimes, Waukee, Dallas Center, Urbandale, and the surrounding communities.
We proudly serve students from:
Wallace, Shuler, Walnut Hills, and Timber Ridge Elementary Schools
Johnston Middle and High Schools, Urbandale Middle and High Schools
Des Moines Christian School
St Pius X Catholic School
Johnston-Grimes Area Homeschool Families
We work with students in grades K–12 across a wide range of math subjects, from early arithmetic to Algebra and Geometry.
Our specially trained math tutors in Johnston-Grimes help students build foundational skills, improve academic performance, and gain long-term confidence in math.
We provide math-only tutoring through a flat monthly membership with no long-term contracts. Most students benefit from attending 2–3 sessions per week. We’ll determine the right plan during a free assessment.
To learn more about pricing and enrollment, contact us at [email protected].
Yes! Mathnasium of Johnston-Grimes is an approved vendor for the ESA program, making it easier for families to access our personalized math tutoring services.
Absolutely! At Mathnasium of Johnston-Grimes, we make math tutoring fun and engaging. Our experienced instructors use conversational, interactive teaching methods to help kids feel comfortable and excited about learning.
We also offer an awesome Rewards Program to keep students motivated and celebrate their achievements. Plus, our free monthly Game Nights give kids a chance to have fun while sharpening their math skills in a relaxed, social environment.
We understand that math tutoring can feel intimidating for some kids, but at Mathnasium, it’s different. Once students step into our Mathnasium Learning Center, meet our enthusiastic instructors, and experience our unique approach to math learning, their attitude toward math tutoring transforms. We see it all the time—students who enjoy learning, learn more and gain confidence!
Each student begins with a diagnostic assessment that helps us understand their skill level, identify learning gaps, and learn more about their academic goals. These insights allow us to create a personalized learning plan tailored to their needs.
At Mathnasium of Johnston-Grimes, we don’t follow a standard curriculum. We use the Mathnasium Method™, a proprietary teaching approach that blends structure with personalization.
Building upon what the student already knows, we add new concepts gradually, breaking them down into manageable steps to help them fill in their knowledge gaps, develop solid foundational skills, and even transform how they think and feel about math.
Yes. We work with students at all skill levels, whether they are looking to catch up, keep up, or get ahead on their math journey.
Students who are struggling benefit from focused instruction that builds confidence and supports lasting understanding. Advanced learners engage in enrichment that deepens their knowledge and challenges them to think critically.
Yes. We welcome homeschool students in grades K–12, as well as those attending public and private schools across Johnston, Grimes, and nearby areas.
Yes. Our tutors set aside time during sessions to help students with their math homework and ensure they understand the material they are covering in school.
No. We do not assign homework. All learning takes place during structured sessions with our specially trained tutors, so students can focus on making measurable progress while they’re with us.
Yes. We help students prepare for math portions of standardized and school-based exams, including state tests, ACT®, and SAT®. Our test prep programs include personalized learning plans, focused practice, and strategies that build both skill and confidence.
Yes. Mathnasium of Johnston-Grimes offers both in-center and online tutoring. Whether students attend sessions in person or online, they receive personalized, face-to-face instruction from the same specially trained tutors in a supportive and engaging group environment.
No. Students who participate in online tutoring receive the same quality of live, face-to-face instruction in a fun and supportive group environment as those who attend sessions in the center.
No. The cost is the same regardless of whether students attend online, in person, or through a hybrid format.
Avoid Summer Learning Loss - Join Mathnasium for a summer full of fun and learning! From personalize...
Contact UsKeep your child engaged this summer with Camp Mathnasium! Our 5-day STEM camp (June 23-27 or July 14...
Contact UsDiscover why over a million parents trust Mathnasium to give their children a competitive edge in ma...
Contact UsEnroll your child at Mathnasium this Fall and help your school earn extra funds! From Sept. 1 to Dec...
Schedule AssessmentAttention educators! Enjoy a 20% discount on enrollment for your child as a thank you for your dedic...
Contact UsAs a special benefit for enrolled families, Parent's Night Out lets you enjoy a break while your kid...
Contact UsReferring a friend to our learning center is rewarding for everyone! When a new family enrolls in a ...
Schedule Free AssessmentKnowledge Hub
May 14, 2025
May 1, 2025
Apr 29, 2025
Apr 29, 2025
Apr 29, 2025
Apr 28, 2025
Apr 17, 2025
Mar 24, 2025
Mar 17, 2025
Mar 17, 2025
Mon - Thu
3:00PM - 8:00PM
Sun
1:00PM - 4:00PM
Mon - Thu
1:00PM - 8:00PM
Sun
1:00PM - 4:00PM
Mon - Thu: | 3:00PM - 8:00PM |
Sun: | 1:00PM - 4:00PM |
Mon - Thu: | 1:00PM - 8:00PM |
Sun: | 1:00PM - 4:00PM |