Kumon Math and Reading Center of Corona - Green River Rd
Learning center · Riverside, CA · reviewed since 2020
iHow the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 59%98+57.5Reliability 26%97+25.3Value 15%93+14.2Craft & service penalty99−0.1Experts Score= 97Not enough data for replies to reviews; its weight is shared by the others.Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.97SCORE
AGradeiLetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20.
#14 of 45 tutoring centersiPosition by Experts Score among all companies we track in this category. · better than 70%
5.0★★★★★55 Google reviews · 24 photos
98%five-star reviews
5.00★last 12 monthsiAverage stars on reviews from the last 12 months only.
0%1–2★, last 20 reviewsiShare of 1–2★ reviews in the last 24 months — or the 20 newest reviews when the company had fewer than 20 in that time.
Kumon Math and Reading Center of Corona - Green River Rd at a glance
Google reviewers rate this Kumon center five stars, highlighting consistent communication, punctuality, and personalized attention to student progress in math and reading. Parents frequently mention receiving real-time feedback, class reminders, and structured assessments that help children catch up to grade level or advance skills. The staff is described as patient, professional, and supportive, with a focus on building student confidence and study habits. No common criticisms appear in the provided excerpts, which uniformly praise the center's dedication and the owner's responsiveness to parent inquiries.
Google rating: 5.0 out of 5 from 55 reviews (98% five-star).
Reviews on this page: 55 Google reviews (50 with written comments).
Owner responses: the business replied to 98% of reviews.
Most recent review: October 27, 2026.
Service: Tutoring Center serving Riverside, California.
Data from Google, last updated November 4, 2026.
Score profile vs other tutoring centers
Score per factor (100 = best)iEach factor is scored 0–100 on absolute terms (star average, share of 1–2★ reviews, price verdicts…); standing within the category can only raise it, never lower it.. Strongest: momentum and craft & service; weakest: value.
This companyTutoring Centers median0 = centre, 100 = best
SatisfactioniSatisfaction · 54% of the scoreRecency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.Kumon Math and Reading Center of Corona - Green River Rd: 98/100 on this factor. Category median: 95.A
98
ReliabilityiReliability · 24% of the scoreHow rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.Kumon Math and Reading Center of Corona - Green River Rd: 97/100 on this factor. Category median: 96.A
97
Craft & serviceiCraft & service · penalty only, up to −10 pointsGoogle review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.Kumon Math and Reading Center of Corona - Green River Rd: 99/100 on this factor. Category median: 99.A
99
ValueiValue · 14% of the scoreCustomers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.Kumon Math and Reading Center of Corona - Green River Rd: 93/100 on this factor. Category median: 92.A
93
MomentumiMomentum · penalty only, up to −10 pointsPenalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.Kumon Math and Reading Center of Corona - Green River Rd: 100/100 on this factor. Category median: 100.A
100
Replies to reviewsiReplies to reviews · 7% of the scoreHow often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.Not enough reviews for this factor yet. Category median: 69.–
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Bar = this company · dark tick = category median.
Star ratings
55 Google reviews we collected
5.0of 5
5 stars5498%
4 stars00%
3 stars12%
2 stars00%
1 star00%
Praise vs complaints
Phrases our text analysis found in 50 written reviews
98%praise
Praise8398%
Complaints22%
Topic share
How often each topic comes up in the written reviews
7topics
Staff & attitude2631%
Would recommend2024%
Quality & results1012%
Speed & response911%
Communication911%
Price & value67%
Honesty & trust56%
What customers talk about
We read 50 written reviews and marked every phrase about these topics. The same colors are highlighted in the reviews.
“Raman and the staff are incredibly friendly and genuinely cares about my child’s progress.”
“Highly recommend this center to anyone looking for a structured and supportive learning environment for their child!”
“We’ve had a wonderful experience with this Kumon center.”
“Ramen asked if I still wanted to go at such a fast pace, he truly cared about my wellbeing, and that is one of the things that sets him apart from eve…”
“He knows when to challenge students to the next level, and he also knows when to slow down to avoid overwhelming the students.”
“What stands out the most is the consistent communication—providing real-time feedback and update.”
“…ith traffic it would take us 30 minutes to drive to Corona, but it’s worth it because it advanced my child academically in a friendly environment, wh…”
“…couraged to excel academically but are also surrounded by people who genuinely care about their growth and success.…”
People customers mention
Raman29 reviews
Jenny6 reviews
Ramen4 reviews
praise complaint · found by our text analysis, Google review wording unchanged.
Recent reviews
NNick7 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 6 months ago★★★★★
The people are what makes any organization great, and these people are wonderful. Caring, organized, and professional.
KKing3 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 7 months ago★★★★★
We’ve had a wonderful experience with this Kumon center. Mr. Raman and the staff are incredibly friendly and genuinely cares about my child’s progress. What stands out the most is the consistent communication—providing real-time feedback and update.
I also really appreciate the reminders for upcoming classes, which…
MMarina6 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 8 months ago★★★★★
My son had been to other Kumon center before, but when we transferred to Kumon GreenRiver, Mr. Raman completely changed our perception of the Kumon program. He is incredibly helpful, encouraging, and supportive of his students, both during the week and even on weekends if necessary. Since we started with Mr. Raman,…
RRachel8 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 8 months ago★★★★★
When my girls first started at Kumon, they were performing below their grade level. Within just two months, they caught up and reached where they needed to be. I’m so glad we chose Kumon Green River. Mr. Raman and his team are extremely professional and truly dedicated to working with both the students and their…
NNesreen9 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 11 months ago★★★★★
My daughter started Kumon when she was 3. We stayed at the same center for years until we moved to this center with Mr. Ramen in September. I wish I had found him sooner. He re tested her on day one and told me she was a grade behind in reading. I was shocked. In only three months she is now at grade level in…
SSravya9 reviewsiTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a year ago★★★★★
Enrolling in Kumon is the best decision I made for my son. He learnt so much there and it has really helped him at school too. Mr. Raman and Jenny are the nicest people. Jenny works with kids so patiently. They make the students do the worksheets repeatedly which improves their speed and boosts confidence. My son…
I truly cannot say enough wonderful things about this Kumon center and, most importantly, Dr.
Raman! I am beyond grateful that we found a place where our children are not only encouraged to excel academically but are also surrounded by people who genuinely care about their growth and success.
What makes Dr. Raman so special is his genuine passion for education and his dedication to giving children the tools, confidence, and love for learning that will benefit them for years to come.
It's so refreshing to find someone who truly believes in children's potential and takes such pride in helping them reach it.
Both of my children have had such wonderful experiences here. My daughter started Kumon at just three years old and is now four and a monitor student. Watching her progress has been nothing short of amazing! She continues to surprise my husband and me with everything she's capable of doing at such a young age. Seeing her confidence, independence, and abilities grow has been incredibly rewarding.
My son also started Kumon at three years old and is now six. His mental math skills and the speed at which he can solve problems are absolutely incredible! I'm constantly amazed by how much he's learned and how naturally these skills have become second nature to him.
One of the biggest lessons this experience has taught me as a parent is that children are capable of so much more than we sometimes give them credit for. When we challenge them, encourage them, and provide the right guidance, it's amazing to see just how far they can go.
I also want to recognize the wonderful team at Kumon, who have played such an important role in both of my children's progress. Their patience, encouragement, and dedication do not go unnoticed.
1 am so thankful for Dr. Raman and his entire team. The foundation they are helping build for my children is truly invaluable, and I couldn't be happier with our experience. I wholeheartedly recommend this center to any parent who wants to nurture their child's abilities, build their confidence, and instill a lifelong love of learning!
Response from the owner · a year ago
Hi Marlene! It's such a great feeling to know that we left you and your child with such a remarkable impression of Kumon Math and Reading Center of Corona - Green River Rd.
Thank you for taking your time to leave a review!
N
Nick Perfetto7 reviewsiTotal number of Google reviews Nick has written across all businesses on Google Maps, not just this one.
The people are what makes any organization great, and these people are wonderful. Caring, organized, and professional.
Response from the owner · 6 months ago
Hi Nick! We appreciate the kind words about our staff! We love assisting our students in establishing strong academic foundations and are overjoyed that so many of them have been successful. We appreciate you taking the time to leave us a review.
Thank you.
K
King A3 reviewsiTotal number of Google reviews King has written across all businesses on Google Maps, not just this one.
We’ve had a wonderful experience with this Kumon center. Mr. Raman and the staff are incredibly friendly and genuinely cares about my child’s progress. What stands out the most is the consistent communication—providing real-time feedback and update.
I also really appreciate the reminders for upcoming classes, which make it so much easier to stay organized with a busy schedule. It’s clear that a lot of thought and effort goes into supporting both the students and parents. Highly recommend this center to anyone looking for a structured and supportive learning environment for their child!
Response from the owner · 7 months ago
Hi King! It's such a great feeling to know that we left you and your child with such a remarkable impression of Kumon of Corona - Green River Rd.
Thank you for taking the time to leave a review!
M
Marina Ataallah6 reviewsiTotal number of Google reviews Marina has written across all businesses on Google Maps, not just this one.
My son had been to other Kumon center before, but when we transferred to Kumon GreenRiver, Mr. Raman completely changed our perception of the Kumon program. He is incredibly helpful, encouraging, and supportive of his students, both during the week and even on weekends if necessary. Since we started with Mr. Raman, my son’s school academies level has improved significantly.
I highly recommend this Kumon!
Response from the owner · 8 months ago
Hi Marina! It's such a great feeling to know that we left you and your child with such a remarkable impression of Kumon Math and Reading of Corona - Green River Rd.
Thank you for taking the time to leave a review!
R
Rachel Rachel8 reviewsiTotal number of Google reviews Rachel has written across all businesses on Google Maps, not just this one.
When my girls first started at Kumon, they were performing below their grade level. Within just two months, they caught up and reached where they needed to be. I’m so glad we chose Kumon Green River. Mr. Raman and his team are extremely professional and truly dedicated to working with both the students and their parents. I’m very grateful for the progress they continue to make.
Response from the owner · 8 months ago
Hi Rachel! We appreciate you sharing your family's experience with other parents. It has been a real joy working with your children to improve their skills and abilities. We appreciate your kind comments about the staff and the feedback that you left for us.
Thank you.
R
Rob Savoji13 reviewsiTotal number of Google reviews Rob has written across all businesses on Google Maps, not just this one.
My daughter started Kumon when she was 3. We stayed at the same center for years until we moved to this center with Mr. Ramen in September. I wish I had found him sooner. He re tested her on day one and told me she was a grade behind in reading. I was shocked. In only three months she is now at grade level in reading and advanced in math. He takes his time with every student and checks in with us on Zoom and in person. He tracks progress, explains goals, and supports parents. He goes above and beyond for every child who walks into this center. I am grateful for the care and structure he provides. This is the best Kumon experience we have had.
Response from the owner · 11 months ago
Hi Nesreen! We love hearing about the progress your child has made while learning through the Kumon Method! We appreciate you telling other parents about your family's experience.
Thank you for writing us a review!
M
Megan Phillips1 reviewiTotal number of Google reviews Megan has written across all businesses on Google Maps, not just this one.
We absolutely love this Kumon Learning Center! From the moment you walk in, The staff is always warm, friendly, and welcoming. Ms. Jenny and Ms.Anastasia are so extremely sweet and patient. My daughters absolutely adore them & they truly make you feel like family vs just another customer.
However, what sets this center apart is Dr. Raman. He is incredibly dedicated and goes above and beyond for every single one of his students. His passion for helping kids succeed is unmatched—he doesn’t just teach, he inspires. My children have made tremendous progress under his and his staffs guidance, and their confidence has grown along with their skills.
I came from another Kumon center, and it could never compare to this one. The level of care, attention, and commitment here is something special. If you’re considering Kumon, I can’t recommend Dr. Raman’s center enough—it’s been an amazing experience for our family!
Response from the owner · a year ago
Hi Megan! We appreciate you sharing your family's experience with other parents. It has been a real joy working with your children to improve their skills and abilities. We appreciate your kind comments about the staff and the feedback that you left for us.
Thank you.
S
Sravya9 reviewsiTotal number of Google reviews Sravya has written across all businesses on Google Maps, not just this one.
Enrolling in Kumon is the best decision I made for my son. He learnt so much there and it has really helped him at school too. Mr. Raman and Jenny are the nicest people. Jenny works with kids so patiently. They make the students do the worksheets repeatedly which improves their speed and boosts confidence. My son avoided Math worksheets before he joined Kumon. But now, he finishes them in one go. This is the best Kumon center in So Cal area.
Response from the owner · a year ago
Hi Sravya! We love hearing about the progress your child has made while learning through the Kumon Method! We appreciate you telling other parents about your family's experience.
Thank you for writing us a review!
S
srinath Varma2 reviewsiTotal number of Google reviews srinath has written across all businesses on Google Maps, not just this one.
Awesome, this institute is really good, they give us feedback right after every class which I really like. Raman is taking very good care on each and everyone to help them grow and every kid is different when coming learning
Response from the owner · a year ago
Hi Srinath! We are delighted to learn that your experience at our center was positive and we appreciate the feedback you left for us.
Thank you.
