Customer Testimonials
I love that this Mathnasium location is very serious with their job. The director Kathy and coaches (Lynn and Chris) were very dilligent with my daugther study and also with giving me updates on her progress. I was always in a rush when picking up my daughter but they would stop me to share and explain my daughter's work. I really appreciate that.
Fehby Delimarta
Kathy and all the tutors at Mathnasium are very supportive and have helped my daughter gain a much better understanding of the subject. Best of all, she has fun while learning. Kathy, the director, goes out of her way to keep parents updated and is very approachable.
Our son has really enjoyed going to Mathnasium and has learned so much. They work with our schedules and make sure the correct tutor is available. We will definitely recommend Mathnasium to our friends.
Great tutors.
The teachers are very kids friendly, totally engaged with the kids, the kids do not feel pressure, good environment, the kids use time wisely in the class. I never see the kids love so much going to the lesson unlike taking other lesson.
All of teachers are awesome, they really
Do care for every individual child. Its really great to see a child happy to be a student at mathnasium.
Thank you Kathy,
:)
wonderful director and teachers!!
My son really likes it. It seems the teachers are able to explain concepts to him clearly and he could easily understood the problems. Very good business. Will definitely recommend to other people.
DB Mathnasium is great! My son is always greeted by name when he walks through the door. Staff shows genuine care and patience when working with my son. He has shown improvement in his math skills since attending Mathnasium. I like the interaction and regard my son receives. My son shares nothing but positive experiences with me during his time at Mathnasium.
Thorough, knowledgeable, easy to understand, friendly and patient when explaining to parents.
My daughter said she understands her math concept a lot better and she is much faster on her timed test after going to Mathnasium
Great Math Center!!! We are so happy with Ms. Katy and staff!!! Our kids keeps improving in Math thanks to Mathnesium!!!😃
Our daughter (11 years old)has been attending the Diamond Bar location for 3 months. She has come along way. School has started and they even assist her with math homework. Kathy leads this office with pride. Keep up the good work.
They work to towards the goal with the kids very well !
Very committed teachers and care about the child. Take time to teach the child. Very patient.
I’m just glad I have decided to put my son in Mathnasium. He has come to appreciate math more and not hate it anymore. His confidence is there now unlike before, and that’s one of the main things I’d like to see improvement on. Mathnasium is a big help and I recommend it to friends & family.
My son says the instructors are cool. Our son practiced math at his assessment level. He says it helps him do well in school and it gives him more confidence. He enjoys the summer activity Kathy provides at the diamondbar site to earn free stamps such as pajama day, red/ white/ blue day etc. for which the instructors participate and it makes learning math motivational.
Thanks Kathy and team for all you do!!!
Kathy and her team are excellent and provide great care for my kids.
Kathy and the staff were amazing! They were so attentive, knowledgeable, and helpful. Thank u so much!!
The tutors are wonderful.
We love it here! Our 5 year old son is learning so much and has progressed since he has started attending Mathnasium.
Very patient with the younger kids!
Kathy and Nick are great! My son has improved tremendously since has been at Mathnasium!
Great teaching methods and great teachers. Staff are friendly. My son enjoyed the math learning there.
We continue to be proud of our son’s performance. One of the greatest accomplishments for Alex this spring quarter was his “O” which represents Outstanding Citizenship. This shows he is demonstrating great discipline, participation and behavior in class. Mathnasium continues to play a part in how our son is feeling comfortable, stress free and engaged with Math.
Thank you to Kathy Chiang and the team of instructors that work with our son. We are glad to have him continue in this awesome program.
Kathy and Nick are very professional and extremely helpful explaining where my daughter should be at and just very attentive at all times.
Other staff members are alway helping the kids just very professional environment to be at my kid loves going there all the time
Fantastic experience! Great management and service. My daughter has improved beyond my expectations and it has now become routine that we come here yearly to keep her ahead of her class. My son is too young to attend but will be following in her footsteps in a few years. Thank you for a great study environment and a well organized curriculum!
Helped my daughter alot!
We signed up our daughter for 6 months at the Diamond Bar Mathnasium and we really liked it. She will be returning once she settles in her new school. The staff there are very caring.

All staffs are friendly. My kid loves to be at the class and having the feelings of accomplishment. Thank you so much for doing such great jobs helping my boy to advance his math knowledge compares to other students in his 2nd grade class.