Customer Testimonials
Mathnasium has been an incredible experience for my son. Lenny and her staff are amazing, and even throughout the process of COVID-19, they remained dedicated to keeping the students safe and educated. My son has always struggled with math, and after several years attending Kumon, it still wasn't clicking. My sister recommended Mathnasium in Rancho because she takes my two nieces there and they have had great success. Although it was a bit of a drive (we live in Claremont), it has been worth every penny spent and every mile driven. My son actually looks forward to Mathnasium tutoring, be it in person or online during distance learning. He connects with the tutors and having them help him with homework has made such a huge difference. We have been attending Mathnasium for less than one school year, and already my son is at an 89% in his 7th grade math class...he may even end the year with an A! Lenny and her staff helped change my son's whole attitude, confidence level, and outlook on math as a whole. I am so grateful.
My son absolutely loves the Rancho Cucamonga location! Lenny and all the math instructors help students develop a love and passion for math! He has been attending since Kinder and as a 7th grader now his confidence and skills continue to grow!
We love this place! My daughter is always so excited about doing math when she comes here! Thank you Lenny for your great rapport with Nora, and thank you Jason for being a wonderful math tutor!
My grandson has attended several classes and, already, we’re seeing an improvement. Especially good resource during home schooling!
Miss Leny is very student oriented and helpful. Transition to online session was a bit rocky but Rancho Cucamonga team made it through. My kid didn’t seem to have any issue acclimating virtual session.
It has helped my children improve their math skills.
Been very helpful for my daughter. She likes it and her assistant is very kind, patient and explains problems very good. My daughter likes it and is happy with service. TY Elva
We have had a great experience! The center is very helpful and knowledgeable. My daughter's grade has gone up significantly. Thank you!
Allison enjoyed going each week. It was a big help in her performance in math. We are looking forward to more math fun this summer.
They are great at teaching your kids math and making it fun
It’s helpful for my daughter.
The tutors are very helpful and my daughter enjoys going.
I think that Mathnasium is a very good program and I can see very good progress with my son. Thanks. Sam
Mathnasium has helped my son to understand common core math. This has enabled him to raise his grades in school.
Flexible schedule. Great tutors, especially Jason, who has significantly helped my daughter tackle some of the difficult high school math concepts.
We are so happy with Mathnasium. The owner of this institute is very nice, honest and accommodating.
Thanks,
Manhar and karisma’s parents
Lenny and her staff are AMAZING. My 9 year old was really struggling with math and it was taking a toll on her personal confidence. The 2x a week at mathnasium has been a Godsend. She is coming home happy and proud of her improving math scores and understanding in school. I also enroll my girls in the summer, which really helps- I'll never miss another summer
My son has attended Mathnasium since Kindergarten! He is now in Sixth grade. Mathnasium has kept his love for math strong! Lenny and all the instructors are amazing!! We are so happy we have Mathnasium in our community!
The staff is very helpful and the atmosphere is positive and welcoming.
I am seeing improvements in my son's abilities. I think Mathnasium instructors are doing a fantastic job. Thanks.
Wonderful experience!
My daughter loves going there and her math confidence has skyrocketed!! Thank you so much!!
Mathnasium is an outstanding establishment. Ms.Lenny runs the Rancho Cucamonga location seamlessly. Both my daughters have regained confidence in Math inside and outside of the classroom. They are excelling at school and truly enjoy attending their weekly sessions. Mathnasium is a wonderful way to enhance a student's educational and mathematical skills. I would highly recommend it to anyone.
Excellent customized math program with organized progress report. My kids have been coming here for 4+ years and have done well in math, thanks to this amazing math center!
I really enjoy taking my daughter to the program. Tutors are very helpful and Ms. Lenny is very diligent in the work that she does!
Mrs. Lenny and her staff are great. They work with my children and help them understand the concept of math. Very patient and friendly.
My family is a fan of Mathnasium. My daughter was enrolled in third grade and she is an honor student. My son absolutely loves Mathnasium. He was enrolled during third grade, and looked forward to going to tutoring. He maintained an A+.
When he got to fourth grade, despite him getting an A he literally asked to be enrolled for the extra learning and self confidence that he can mentor his classmates. The Rancho location is led by Lenny and she is superb and beyond amazing.
Not only for education, help my kids to grow with positive reinforcement.
Mathnasium is part of the family!

We absolutely love Mathnasium. We have notice my kid’s Math skills significantly have improved. The staff especially Lenny (Center director) are all awesome. Very professional and efficient. They have also kept the place clean (properly sanitized) especially during this Covid season. They provide positive reinforcements (snack treats) to students when they reach certain goals and I think this is great because the kids gets highly motivated. My daughter’s teacher is very approachable and warm making my daughter comfortable during their Math sessions.