

One of our best tutors. Quality profile, experience in their field, verified qualifications and a great response time. Carlos will be happy to arrange your first Preparation for business school lesson.
Carlos
One of our best tutors. Quality profile, experience in their field, verified qualifications and a great response time. Carlos will be happy to arrange your first Preparation for business school lesson.
- Rate R661
- Response 2h
-
Students50+
Number of students Carlos has accompanied since joining Superprof
Number of students Carlos has accompanied since joining Superprof

R661/h
- Preparation for business school
- French Exam Preparation
SAT & ACT Math Tutor | 18+ Years of Experience | Personalized Test Prep, Strategy & Practice
- Preparation for business school
- French Exam Preparation
Lesson location
Ambassador
One of our best tutors. Quality profile, experience in their field, verified qualifications and a great response time. Carlos will be happy to arrange your first Preparation for business school lesson.
About Carlos
Hi! I’m Carlos Valladares, a math tutor with about 18 years of experience and a Bachelor’s degree in Mathematics. I work with high school students preparing for the SAT, ACT, and PSAT, helping them strengthen the math they need for the test, improve their problem-solving strategy, and become more confident with test-style questions.
Over the years, I’ve worked with students with very different starting points and goals. Some need to rebuild important Algebra or Geometry skills, while others already have strong math foundations and want to improve their speed, accuracy, and overall score.
I’m a full-time tutor, and I try to make sessions clear, comfortable, and easy to follow. Students should feel comfortable asking questions and saying when something doesn’t make sense.
Lessons are available in English or Spanish, and I can also work bilingually when that is helpful.
About the lesson
- Primary
- Secondary
- Matric/GCSE
- +7
levels :
Primary
Secondary
Matric/GCSE
AS Level
A Level
BTech
Adult education
Masters
Doctorate
MBA
- English
- Spanish
Languages in which the lesson is available :
English
Spanish
Every student prepares differently, so I adjust the lessons based on the student’s current score, target score, test date, strengths, and the areas where they are losing the most points.
A typical lesson might start with a quick review of recent mistakes or questions from previous practice. From there, we usually focus on one or two specific areas, such as Algebra, Geometry, functions, word problems, pacing, or calculator/Desmos strategies. I explain the ideas step by step, we work through examples together, and then the student tries similar problems independently while I give feedback.
I don’t like relying only on shortcuts or memorized tricks. I want students to understand the math well enough to recognize what a question is asking and choose an efficient way to solve it. I also pay attention to patterns in missed questions, because sometimes the problem is not the math itself—it may be timing, a careless mistake, or an inefficient approach.
As the test gets closer, we can spend more time on timed practice, harder questions, and overall test strategy. After each session, I provide a PDF of the work we completed so the student can review the explanations and examples later.
These lessons are for high school students preparing for the SAT, ACT, or PSAT, whether they need to strengthen certain topics, improve an existing score, or work toward a specific goal.
Recommendations
Recommendations are written by the tutor's friends, family, and acquaintances.
Carlos is an amazing math tutor. He explains things clearly and has a lot of patience, which really helped me feel more confident with math. You can tell he genuinely cares and wants his students to succeed. I’m really grateful for all his help
Carlos is an incredible tutor. As an adult learner, I felt embarrassed and unsure about my math skills, but Carlos made everything clear, approachable, and even enjoyable. He helped me understand concepts I never quite grasped during my school years, and now I finally feel confident in my ability to work with math. Highly recommend him to anyone looking to learn at their own pace with patience and support.
Carlos is a amazing tutor he is nice, calm easy to work with, fun, and not at all judgemental I highly recommend Carlos to anyone
Carlos is the best! I love the way he teaches. I strongly recommend him to anyone who is struggling with math.
I’m so happy I found Mr. Carlos for my son . He exactly knew how to connect with my son . His teaching skills are amazing ! My son waits for his class and I’ve seen a massive change in his confidence ever since he’s been taking math classes with Carlos . Carlos is accommodating and very understanding . He is so prompt with answering back any questions and queries .
Patient, friendly, and knowledgeable.
He's definitely the best. I always recommend him.
Gracias Carlos. Has sido una gran ayuda.
5 stars
Professor helped me so much, thanks to all his hard work and several hours working with me I'm learning Calculus, we still have a long way to cover but I will definetely have him as my tutor for ever. Thanks.
Best tutor ever.
Thxs! 5 out 5 stars
Carlos ha sido de gran ayuda. Me ayudó a entender Calculus y pudo explicarme todo en español y en inglés.
Thanks!
He helped me with an AP Calculus AB review. He definitely knows the material, and he makes everything a bit easier to understand.
Thanks sooo much Carlos for all your hard work, and for always being so supportive. Thanks to you I was able to approve Calculus 2. See you next year.
5/5
It has been an excellent experience working with Carlos. He is always more than willing to help me. I'll definitely keep working with him for a couple of years.
He was a great help.
You helped me a lot with my Spanish midterm exams. Gracias Mr. V.
Thxs, you helped me a lot!
Very personable and response to emails. Provided a whiteboard of everything completed during zoom tutorial sessions. Helped my son prepare for his AP Calculus exam
Carlos offered a free 30 min trial that definitely helps to know how he works and if you like his teaching style. I'm pretty sure that after doing the free trial you will work with him for sure, since he is more than capable with Math related topics and he really knows how to explain things to make you understand. Besides he is very patient.
Muchas gracias Carlos! Me ayudaste mucho, sin ti no hubiera podido aprobar Cálculo.
He has been the Spanish partner I have ever met. I have improved by Spanish skills thanks to him. Muchas gracias Carlos por ayudarme a mejorar mi pronunciacion.
Carlos has helped my son a lot, thanks to him he was able to improve his grades.
Carlos has been the best Math tutor I have ever had.
Thanks so much for all your hard work.
Best experience with any tutor ever. He is super friendly and he really knows math! I love to work with Carlos
:D
Excellent as always. Carlos always does an excellent job.
Thanks you so much Professor
I cannot thank him enough! Thanks, Carlos!
Carlos is super nice and friendly, but besides that, he really knows Math. He helped me with Algebra (Vector spaces) and now I can say that thanks to him I understand vector spaces way better.
THE BEST!
Thanks for helping me preparing for my ACT test! I couldn't have done it so well without your help! Thanks!
Simply the best!
Carlos has been fantastic. I found him in this website back in June, 2021, and since them I have always worked with him. Thanks for everything Carlos.
Thank so much Carlos. :)
Carlos was brilliant, he helped me to understand graphing trigonometry function in an easier way than my professor did.
Thanks so much professor!
Fully recommended! (:
Excellent learning experience.
Thx 4 helping my daughter.
Best tutor to work with.
As a parent who does not know Math it is hard to help my children with this topic. Thankfully I was able to find Carlos and he has helped them so much, I will definitely be using him during their entire education.
Thanks! (:
I've always loved our sessions. He is super patient and that's something great since sometimes I need a lot of time to understand the problems, but he is always willing to show me how to do it and in different ways until I fully understand it.
10 out of 10! Great teacher and a fantastic person.
Thanks, Carlos!
The professor is very patient and as always super helpful.
You are the best Carlos. Thanks!
10/10! I'm super happy to have found Carlos!
Excellent lessons!
I love the way Carlos explain everything! He makes the things so easy to follow and understand.
Carlos helped me so much to practice my Spanish, thanks to him now I feel more confident when speaking Spanish.
Carlos helped me a lot while I was in High School. I always had problems understanding Math, but thanks to him I managed to understand the topics better. Thanks!
Thanks Carlos!
The best tutor I have ever had the pleasure to work with.
Awesome guy. Super helpful!
Carlos helped me so much in my preparation for the SAT test! He did a fantastic job. Thanks!
Thanks Carlos!
Thanks, Carlos!
He made everything super simple to understand! We covered some truth table problems.
Best tutor I have ever worked with. 100% recommended!
Excellent tutor, provides fantastic explanations.
He is fantastic! Also he can go fast if you need to have an assignment done really fast.
Carlos has helped me so much during the part 3 years. I have been working with him a lot. When he asked me if I could write a review for him here in this website I gladly do it, since he deserves the best possible reviews.
Thanks for everything Carlos!He is the best!
Best tutor ever!
Thanks so much, Carlos! You have been an inspiration to keep pursuing my Bachelor's degree!
I loved the way Carlos helped me understand Calculus!
Carlos has been one of the best tutor I have ever had. I fully recommend him.
Carlos helped me with some Discrete Math problems related to induction. I must say that I have never understood induction so well until Carlos helped me! Best tutor ever, period.
Carlos has helped me countless times! I managed to get well grades in Calc I, Trigonometry, Algebra because of him. He is extremely patient.
Carlos helped me with some Spanish homeworks I had. I will be asking for his assistance in the future for sure.
Excellent tutor! I will be definitely be working with him again!
I must say that I was having so much trouble understanding Calculus during the summer classes, but then I found Carlos and even though it was summer he was always available and willing to assist me.
Carlos is the best if you want to really learn Calculus (and any math-related course), also he is extremely friendly and patient, which is extremely good since it took me a lot of time to understand some concepts, but he never got desperate and he was always supporting me.
Thanks, Carlos! (:Carlos has been by far the best tutor I have ever met. He helped me understanding some concepts that I couldn't understand, he explained them to me in the easiest way possible.
I would definitely recommend him to anyone that really wants to understand Math.It has been a great experience working with Carlos. I always recommend him!
He provided an excellent and super tidy work. I definitely recommend Carlos since he is extremely professional and polite. Don't be fooled with other tutors who may charge less but don't provide this amazing work.
I'd definitely recommend Carlos. He provided me a pdf file with all the explanations and solutions to my questions, so I was able to understand how to solve them and also could check if my solutions were correct.
Carlos is amazing! He explained everything! I definitely recommend him to any student.
See more recommendations
Rates
Rate
- R661
Package rates
- 5h: R3305
- 10h: R6610
online
- R661/h
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