V. Wang
I can’t say enough good things about this place. The instructors are patient, knowledgeable, and truly care ab...
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Mathnasium of Diamond Bar's personalized geometry tutoring programs are designed to support students at every stage of their math journey.
We help students master foundational topics such as angles, shapes, congruence, and measurement, improving their spatial reasoning and logical thinking so they’re well prepared to take on more advanced geometry with confidence.
Using personalized learning plans, we can guide students through high-school-level geometric concepts such as proofs, triangles, circles, transformations, and the Pythagorean theorem. We focus on helping them truly understand how geometry works.
At Mathnasium, advanced learners and students preparing for math competitions can tackle rigorous proofs, coordinate geometry, and multi-step challenges, deepening their understanding and strengthening skills for college-level coursework.
At Mathnasium of Diamond Bar, our specially trained tutors work with students of all skill levels to help them truly understand and enjoy geometry through face-to-face instruction in a fun and empowering environment.
We guide students to connect geometric concepts to logical reasoning and real-world applications. As their understanding grows, so does their confidence to approach new problems with clarity and precision.
We employ the Mathnasium Method™, a proprietary teaching approach that combines personalized learning plans with proven instructional techniques. We work with students both in-center and online, helping them develop a lasting understanding of geometry.
In each session, students receive face-to-face instruction in a small-group setting where they strengthen problem-solving skills and deepen their understanding of geometric relationships and logic.
Students begin their Mathnasium enrollment with a diagnostic assessment that helps us pinpoint their current skill level, knowledge gaps, and learning goals.
Using these insights, we develop a personalized learning plan tailored to each student’s needs. Our tutors then target instruction on key topics such as angles, congruence, transformations, the Pythagorean Theorem, and proofs, ensuring they learn and master each concept step by step.
Our 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
The Proof Is In The Numbers
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.
Geometry Tutors Near You
Mathnasium’s specially trained geometry tutors work with students across the 91709, 91748, 91765, 91766, and 91789 zip codes. We proudly serve families throughout Diamond Bar and nearby areas, including:
Specially Trained and Caring Team
Raven Saulpaugh
Center Director
Raven graduated from Cal Poly Pomona with a Bachelor’s Degree in Pure Mathematics and a Teaching Option. After spending a year in a credential program, she discovered her passion for Mathnasium’s individualized learning model and chose to build her career around it. Since starting as an instructor in 2016, Raven has become a Mathnasium expert and a dedicated advocate for student growth.
She’s passionate about helping students not only understand math, but enjoy it. In her free time, Raven loves swing dancing, hiking with her dog, snowboarding, and watching her friends play video games.
Nick van Vliet
Operations Director
Nick earned his Bachelor’s Degree in Business Finance from Cal State Northridge and joined Mathnasium in 2014 after being inspired by its impact on students. He served as Center Director in Irvine for two years before taking on the role of Operations Director, now overseeing four centers including Diamond Bar.
Nick is committed to fostering an engaging and encouraging learning environment where students can build confidence, challenge themselves, and enjoy math. Outside of Mathnasium, Nick enjoys sports, snowboarding, BBQs, reading, and competing in just about any game you can think of.
Sherin Yueksel
District Manager
Sherin graduated from the University of California, Berkeley, with a Bachelor's Degree in Economics. She first started at Mathnasium as an instructor in 2021. She was quickly promoted to Assistant Director and even helped establish Mathnasium of Valencia. Sherin has pursued a career at Mathnasium because she wants to make an impact in her community and she wants to help as many students as possible. She is passionate about creating a welcoming environment where every student feels comfortable, confident, and can strive for excellence. In her free time, she loves spending time with her family, shopping, and making new recipes.
Angela Weng
Assistant Center Director
Angela recently graduated from Diamond Bar High School, where she completed AP Calculus AB and developed a strong interest in math. She plans to pursue a degree in Biology and has always enjoyed working with students.
Angela brings experience from tutoring programs and summer volunteer work, where she helped students build foundational math skills. She looks forward to continuing that journey at Mathnasium. When she’s not working, Angela enjoys traveling, visiting cafes, and spending quality time with friends.
Kris Phan
Instructor
Kris is currently enrolled at Chino Hills High School as a senior, where he has taken Trigonometry / Pre Calculus, and is currently taking Calculus AB. He loves tutoring and teaching to help children improve their skills, especially math! Kris also has prior experience tutoring students at Wickman Elementary School in varying grade levels, which led him to find a strong passion for teaching! Kris is also currently striving to become a teacher, to get a degree in education, and hopes to influence all the kids that he tutors so that they can strive in their lives as well. In his free time, he enjoys playing video games, going out with friends, and occasionally watching anime.
Ryan Golonka
Instructor
Ryan is currently at Cal Poly Pomona studying for a bachelor's degree in Applied Mathematics. Ryan has always been interested in math because he found that math was everywhere in some way shape or form. Ryan knows how to solve a Rubik’s cube and also can play the double bass, just not as well anymore. Currently in college Ryan is studying for the Putnam competition in December. In his free time, Ryan likes to play video games, watch very long videos, speedrun, listening to musicals, and meeting up with friends when they have the time.
Yongchong Yu
Instructor
Yongchong has an Associate’s Degree in Programming from Mt. SAC and is pursuing a Bachelor's Degree. He has been a tutor in college for four years and really enjoys helping students. Basic math is logical training and the foundation of analysis, and everyone can master it if they put their mind to it! Yongchong was a CSU Long Beach Archery team member and archery is the sport he used to de-stress. He also builds models and airbrushes them in his spare time!
Whether they would like to attend sessions in-center or online, 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 the geometry concepts they still need to learn.
FAQ
Mathnasium of Diamond Bar is located at 2020 S. Brea Canyon Rd., #A3, Diamond Bar, CA 91765, on the corner of Pathfinder and Brea Canyon Road, next to International Deli and across the freeway from Diamond Bar High School.
Students can attend sessions in person or join live, face-to-face online geometry tutoring with our caring tutors in Diamond Bar.
We proudly serve students and families from Diamond Bar and nearby communities, including Walnut Valley Unified School District. Local schools we support include:
South Pointe Middle School
Chaparral Middle School
Diamond Bar High School
Yes! We support students in both middle and high school, including those enrolled in standard, honors, or advanced geometry courses.
We help students learn and master K–12 geometry topics like:
Angles, triangles, and plane figures
Circles and polygons
Transformations: reflections, rotations, translations, and dilations
Coordinate geometry: distance, midpoint, slope
Congruence and similarity
Volume and surface area of 3D shapes
Logic, reasoning, and writing proofs
These topics can be built into the student's personalized learning plan based on their unique needs and goals.
We use the Mathnasium Method™, a proprietary teaching approach designed to promote math mastery. It starts with a diagnostic assessment to identify each student's current skill level, knowledge gaps, and goals.
Based on those insights, we develop a personalized learning plan and provide face-to-face instruction, either in-center or online, in a caring and fun group environment. Our tutors use a combination of visual, verbal, mental, tactile, and written strategies to make geometry clear and engaging.
Many students come to us confused or frustrated with geometry. To help them transform their relationship with the subject, we meet them where they are on their math journey, break down complex concepts into manageable steps, and provide ongoing guidance at their pace.
Our caring tutors focus on building both skills and confidence, so students feel supported and capable.
Absolutely! For advanced learners, we offer enrichment opportunities that include challenging proofs, multi-step problem solving, and real-world applications to deepen their geometric thinking.
Yes. Our tutors set aside time during sessions for homework support. Beyond helping students work through assignments, we focus on strengthening their understanding of the concepts behind the problems so they can approach similar questions with confidence on their own.
Certainly! We can align our instruction with classroom goals or California state standards to help students prepare for quizzes, unit tests, final exams, and standardized assessments like the California Assessment of Student Performance and Progress (CAASPP) and the SAT®.
Yes! Students can participate in live, face-to-face online sessions and receive the same high-quality instruction and caring guidance from our tutors in Diamond Bar.
At Mathnasium of Diamond Bar, we focus exclusively on math.
We follow the Mathnasium Method™, a proprietary teaching approach designed to promote math mastery. Our tutors follow personalized learning plans and teach in a way that makes sense to each student in a supportive, engaging environment.
Yes! When appropriate, we can align personalized learning plans with California state standards and classroom goals to support classroom success.
At Mathnasium of Diamond Bar, the cost of math tutoring depends on your student's individual learning plan and session schedule. Students usually attend a couple of sessions per week for a flat monthly membership fee.
For specific pricing information, please contact our center directly. We're happy to walk you through the options and find a plan that fits your student's goals and your family's needs.
Getting started is easy! Contact us or schedule an assessment to get started.
Once we understand your student's skills and goals, we'll create a personalized learning plan and begin sessions, often within just a few days.
2020 S. Brea Canyon Rd., #A3
Diamond Bar, CA 91765
| Call: | (909) 860-3781 |
| Email: | [email protected] |
Mon - Thu
2:00PM - 7:00PM
Sat
11:00AM - 3:00PM
Mon - Thu
12:00PM - 7:00PM
Sat
11:00AM - 3:00PM
| Mon - Thu: | 2:00PM - 7:00PM |
| Sat: | 11:00AM - 3:00PM |
| Mon - Thu: | 12:00PM - 7:00PM |
| Sat: | 11:00AM - 3:00PM |
Have questions? Contact us.
(909) 860-3781
