Really good experience. Almost all tutors are the same: teaching and answering questions, but Terry…read moregoes beyond that to give deeper explanations to questions and concepts, something I haven't seen in many tutors. The pace of lessons are tailored towards the student; if a faster pace is preferred he can do that, and he really excels in helping those who want to understand how and why everything works together. Very patient in explanations and works to make sure the student understands the concept. Not only that, but he stays up late helping students with math and answering questions past midnight. He cares about his students and I'll definitely miss his classes as I'm off to university. There are many math tutors, but Terry is the person you go to for an in-depth understanding of coursework. Highly recommended for calculus (my experience) and everything else.

If I could give more than 5 stars, I absolutely would! Terry has been my math tutor since 7th…read moregrade, guiding me through Algebra 1&2, Geometry, Trigonometry, and Calculus AB & BC. He not only focuses on teaching his students but also cares deeply about building strong connections with them. Terry is extremely patient, knowledgeable, and is able to explain confusing topics in a way that was easy to understand. He ensured that I not only understood the topic but also confident in anything I was given! He is also able to understand and adapt to the many different teaching styles by the teachers at my school. No matter the time or day, he was always there for me. I still remember the night before one of my Calculus exams. I was Terry's last student of the day, and our session was supposed to end at 11:30pm. He stayed on the Zoom call with me until midnight, patiently helping me with the questions I struggled to understand. I cannot recommend Terry highly enough. If you're looking for a math tutor who goes above and beyond to support their students, Terry is the perfect choice. Thank you, Terry, for everything you've done for me!

​I can say with total confidence that Ms. Raven is the most responsible teacher I've encountered…read moreacross all the after-school programs we've tried. Her dedication is unmatched. ​Why This Program Stands Out: ​Personalized Progress Tracking: Ms. Raven tracks every student's progress weekly and personally calls parents to provide updates and listen to any feedback or suggestions. ​Shift in Attitude: My child went from hating math to actually being willing to attend. The "Reward System" they have in place is very effective at keeping kids motivated. ​Self-Paced Learning: Students can work at their own pace, which gives them a great sense of freedom and reduces pressure. ​Curriculum Balance: The material is a mix of what they are currently learning in school and new concepts they haven't seen yet. While it doesn't strictly follow the school's timeline, it keeps them challenged. ​No Homework: Perhaps the best part is that there is no extra homework to bring home. For a child who is already resistant to math, this is a huge plus. ​Ultimate Flexibility: They are open Monday through Saturday, and you can drop in at any time. There are no fixed class slots, which is incredibly convenient for a busy schedule. ​Bottom Line: If you are looking for a supportive environment where your child can overcome their fear of math without the burden of extra homework, I highly recommend this place!

All three of my kids get tutoring here. One of my kids first started coming here last summer of…read more2025. My son was struggling with math due to his difficulty in focusing, understanding the concepts and overall the language of math. I have seen dramatic changes with his math skills, confidence and it also helps that he looks forward to coming here. During the summer of last year I was so surprised in his speed and understanding of math. He also became really great in doing mental math. I am unsure if Mathnasium had anything to do with it but regardless I am satisfied customer and a happy mother. My son also has had some bad days due to his personal behavior but Raven and the tutors are incredible. They are professional and do no lose their cool or their demeanor when my son tries to tests his limits. My daughter who is 7 years old could come here every day if she could. Many times shes the one asking if she could go even when her two brothers are not with her. She loves the incentives. They definitely keep her motivated. Raven is friendly, personable, professional and is great at updating us with the kids progress. Many times when she is not talking to parents I love to chat with her and pick her brain about anything related to math, learning styles, kids behaviors, etc. My only suggestion and hopes for the future plans with Mathnasium is if they could be open on Fridays and expand their hours.

We're so thankful for everything they've done for our son over the past three years. They were…read morealways kind, supportive, and really took the time to care about him as a person, not just his applications. Mr. Lee guided him through the whole college process and made it much less stressful for all of us. We're so happy with where he ended up and we truly appreciate all the extra care and attention they gave him. We can't thank them enough and would highly recommend them to anyone.

A friend recommended Lee's Review to me for college counseling. I was very hands off as I felt it…read morewas my son's responsibility, and they did a great job with him. My son got into his dream school and I had to do nothing.

My kid goes to C2 Education Diamond Bar and had a pretty good experience here, the teachers are…read morevery nice

C2 has really helped me improved grades, especially in chemistry. The teachers are extremely…read morewelcoming and patient, which has made a huge difference in my learning experience.

I had Holden as tutor a few years ago when I was a junior at DBHS. I'll let you know that Holden is…read morean amazing tutor! He's very patient with his students. He makes sure that you try the problems yourself and helps develop skills in your weakest areas. Even if it's not the math you're doing at the time, he makes sure you strengthen your foundational math. In addition, he's very knowledgeable! He has an incredible high school and college background. He has a math degree from Northwestern University and it shows! So not only can you help you with math, but he has great advice for getting into top colleges.

Both of my middle school kids have Mr. Tran for private tutor, they have improve very much with Mr…read more Tran's help. Mr. Tran's calmness and patience help students to focus and not to be afraid to ask questions. We most appreciate that he always communicate with parents, and respond to our inquiry when we run into difficult homework questions. I highly recommend Mr. Tran if you need a responsible and professional math tutor!

Premier provides great after school and tutoring sessions…read more My son is in 6th grade and Premier has structured Math and English group lessons, as well as private lessons. The teachers are supportive and knowledgeable in the subject matter. My son is able to complete his homework and learn in a positive environment.

My son has been with Premier since Elementary( for 9 years already).I really appreciate that…read morePremier has always been supportive to my son academically. Everyone in premier is so professional and helpful, especially Kevin and Mr. Greenspan. Premier is definitely an asset for the Walnut community. I highly recommended.

Sylvan Learning has been such a helpful support system for my daughter. We first came in because…read moreshe was struggling with homework and reading comprehension. Sylvan started by doing a full assessment and then walked us through which program would best fit her needs. We began with homework help, but after seeing her results, we switched to their reading comprehension program. She now attends twice a week, and they focus on helping her understand what she reads--things like cause and effect, main ideas, and writing at a 5th‑grade level. One thing I really appreciate is that they even reached out to her school teacher to get a clearer picture of where she was academically, so everyone is working together. Since starting, my daughter has grown so much. She actually enjoys writing now and is slowly building more interest and confidence in reading. The small group setting works really well for her, and I love that Sylvan does monthly check‑ins with parents so we always know how she's progressing. Overall, Sylvan has been a great experience for our family, and I'm grateful for the support they've given my daughter.

My son likes Sylvan and goes there for English twice a week. They are very receptive with your…read moreneeds and check up with you with meeting and their progress about monthly. They give assessments to update their personalized learning plan. Kids get points and get to shop so my son is excited about that.

I took SAT classes here before two of my exams. First time, my score increased by 110. The second…read moretime, my score increased by 120. Very engaging classes and dedicated teachers.

My daughter scheduled for the June exam and we have contract with Keystone Education for three…read moreintensive SAT sessions on Saturday that leads up to the test date. Her SAT scores increased 160 points. That is a big jump just three sessions. If I ever need, I will come back to this place for help :).

Total Learning is a fantastic, academically focused after-school program & tutoring center for…read moreyouth! My kids who are in elementary school enrolled here and it's been a great experience for them. Total Learning is in a very convenient area close to many of the highly rated public schools in the Diamond Bar area (within WVUSD (school district)). In addition to the after school programs offered for different education levels, the center offers after-school pick up if parents need, so that parents don't need to worry about having to transport their children on weekday afternoons. The most important part about TL is that the teachers and staff truly care about the kids and their academic progress/growth. I really appreciate the teachers' helping with my kids' homework and the academic curriculum TL provides to help kids' to expand their minds. Kids will learn important skills, such as proper organizational skills, completing assignments on time, attention regulation, and training in various school subjects (reading comprehension, math, writing). I greatly appreciate such a high quality after school program such as Total Learning that helps to supplement kids' academic performance and growth! Thank you again to the staff and teachers at Total Learning!

I've been attending this program for 7 years now and it's amazing. I was struggling with writing…read moreand math so my parents signed me up for private lessons when I was in 5th grade. My teacher was really helpful and was very passionate on making sure that I understood what was going on. I am now a Junior in high school and I struggle with Calculus. Total Learning has awesome math teachers. Mr. Eddie is great, but Mr. Tam is better. They separate elementary, middle, and high school into different buildings. Grades are separated into different rooms so it is very convenient. This place has diverse teachers and awesome service. I'm planning on coming here my senior year too!!