Customer Testimonials
Great team
Mathnasium has done wonders for my children. You can see immediate changes. No more tears for tutoring time. Have recommended several family members to join Mathnasium. It's definitely the best.
They staffs is really good with the kids
Great environment, teachers and Debbie is always the best. Couldn't be happier with my kid experience and her results. She LOVES going to Mathnasium, which is incredible given that she never was fond of Math.
Mathnasium Denville continues to impress. Debbie Lum and her staff are highly organized and care about all of the kids. The quality of the instruction is excellent. Progression along the learning plan is individualized so if your child prefers a slower or faster pace or needs extra time to master a concept they will be accommodated. The goal is for your child to truly understand, not just to complete units. There is always a fun activity, game or event to entertain the kids; and the never-ending supply of ice pops, treats, stickers, etc in the prize cabinet are a great motivator! We really love it here.
🤩🤩🤩🤩Mathnasium is like a gym…getting our child engaged in Math Fitness and building her stamina and strength for math brain work! We absolutely love it! The staff is wonderful and Miss Debbie…simply amazing 🤩
Great tutors, teachers, etc... kids love it.
My kids have been attending and it has done wonders for their confidence.
Miss Debbie is very caring and the tutors great instructors.
Alessia enjoys Mathanasium and never complained about coming, on the contrary!! She’s super happy even months into it. You guys are doing a fantastic job!
By going on-site learning, my son has improved a lot.
We continue to be totally satisfied with our Mathnasium experience! The instructors are engaging and Debbie Lum is always finding new, fun activities for the kids. It’s wonderful to have the enrichment, homework review and games all during the same session! We would recommend Mathnasium Denville to anyone, whether their child needs extra help or wants an extra challenge. Our child doesn’t “need” to go but really likes it and the instruction really cements the fundamentals.
Ou boys really look forward to going to Mathnasium! Debbie really cares about their improvement and she hires very intelligent instructors who have a great demeanor.
I have had a wonderful experience with Mathnasium for two years while home schooling my middle school child. He is very well prepared to return to high school in September at an Algebra 1 level and enjoys the instruction.
Mathnasium continues to be an amazing experience for our daughter. In a few short months, we have seen her confidence in math soar to new heights, which ultimately spilled into other areas as well. The tutors are so incredibly patient and motivating for her to keep trying, even when concepts may be difficult. Miss Debbie goes above and beyond and it is clear that having a center to develop mathematical minds is not only her passion, but it’s her mission. She truly cares about each child beyond academics and serves them holistically. We are so grateful for the entire Mathnasium of Denville family.
Alessia Brentani truly enjoys her time at Mathnasium and looks forward to going there!! Thank you guys for making math an enjoyable experience for our kids!
We are incredibly pleased with our experience at Mathnasium Denville. Debbie Lum and the tutors all work hard to make sure our child is learning at the proper pace and are happy to slow down or speed up depending on needs. The scheduling app is easy to use. The weekly and monthly contests and games are fun for the kids and the prizes/treats motivate them. We have not regretted our decision once and world recommend Mathnasium Denville without reservation!
We have had a wonderful experience at Mathnasium in Denville. Debbie, the owner is fantastic and treats each kid as her own. My daughter went from avoiding math to wanting to go to mathnasium. Her skills are improving and I’m confident she will be at grade level in a few short months.
Debbie and her team of great instructors go above and beyond for our children. They prepares our 6th grade son for his assessments at school. The instructors keep it fun for all of our kids - grades 6th, 5th and 3rd. The prizes motivate them and they provide progress notes for us parents. Highly recommended!
We have only been with Mathnasium for about a month and it has made a world of difference for our daughter! She is more confident in math and is always eager to attend her sessions. Her growth with concepts such as fractions is quite noticeable. We are so grateful for Miss Debbie and the entire team!
The team at Denville Mathnasium is incredible with the kids. They make the classes fun and keep the kids engaged. I have seen a significant increase in my daughter’s confidence and interest in math in the two months she’s attended. All of the instructors that my daughter has worked with have successfully introduced new concepts in ways in which she can understand and immediately learn. I am very appreciative for the owner, Debbie, who is very engaged with the kids and knows everything about what is going on within the center. Great job Denville Mathnasium team!
Mathnasium is wonderful. Our son loves it!
My daughter Daniela always looks forward to going to Mathnasium. She has fun and she is learning.
Best place to bring your kid to learn math!
A great center
My daughter was apprehensive to start mathnasium. We have been there for a little over a month and she now looks forward to going. She told me she “feel comfortable” and “knows everyone.” The little prizes motivate her to work hard. She actually asked me to go today (we weren’t scheduled)! So happy we found Mathnasium Denville.
Debbie and her entire team are genuinely committed to helping the students excel!
Both my kids love Mathnasium. They’ve learned so much and enjoy going every week. The teachers are great.
Daniela looks forward to learning math and always leaves smiling!

Great group of professional tutors and instructors. I've witnessed great investment for my kids who have benefited from this studio. Thank you.