If you hire this pro, you’re covered by a money-back guarantee. Learn more
If you hire this pro, you’re covered by a money-back guarantee. Learn more
About
********************TUTORING STARTS AT $75/HR.****************************
Remote Tutoring Only
My goal is to provide high-quality and enjoyable online tutoring and coaching. With over 15 years of experience in a classroom and in one on one settings, I pride myself on meeting the needs of all students and helping them achieve their best.
New students receive their first session completely free of charge!
Overview
Current Top Pro
Hired 17 times
Serves Washington, DC
Background checked
4 employees
8 years in business
Business hours
This pro hasn't listed their business hours.
Payment methods
This pro accepts payments via Apple Pay, Credit card, PayPal, Square cash app, Venmo, and Zelle.
Top Pros are among the highest-rated, most popular professionals on Thumbtack.
2025
Services offered
Student grade level
Math type
Algebra
Geometry
Trigonometry
Precalculus
Work location
I work remotely (phone or internet)
Projects and media
Projects and media
Reviews
Customers rated this pro highly for professionalism, work quality, and responsiveness.
Exceptional 5.0
39 reviews
5
100%
4
0%
3
0%
2
0%
1
0%
Your trust means everything to us. Learn about our review guidelines.
Read reviews that mention:
Ryan G.
Apr 10, 2026
•
Hired on Thumbtack
He was able to help me understand with what i was struggling in calculus! Makes everything alot more clear and provides quality work.
Details: Undergraduate school • Calculus • 18 - 25 years old • At the pro’s location • My home, venue, etc. • Remotely (phone or internet)
Math Tutoring
Yogi S.
Apr 21, 2026
During my time with Mr. Kevin, he was a huge help in my Precalculus Honors class. He explained advanced topics clearly, and we even went ahead of the curriculum often times. Mr. K actually made sure I understood the steps of each problem, which was especially important during the first semester of precalculus when dealing with Trig and applications. Overall, he was very professional, responsive, and reliable whenever I needed help. Thanks to Mr. Kevin, I became much more confident not only in the classroom, but also in myself and in everyday life! I am truly grateful for all the support.
Rosa G.
Apr 3, 2025
•
Hired on Thumbtack
My daughter has struggled with her Algebra 1 class all semester. She had the opportunity to retake a test she had previously failed. I knew that she needed a tutor if she was going to have a fighting chance and I found Mr. Kevin with wonderful reviews. He definitely deserves all of them. I could tell from her first session that it made a world of difference. He even gave her some practice worksheets. Thank you Mr. Kevin!
Details: High school • Algebra • 14 - 17 years old • Remotely (phone or internet)
Math Tutoring
Sabrina H.
Sep 29, 2021
•
Hired on Thumbtack
We contacted Kevin to tutor our high school junior with their Differential Equations class as their school takes a blistering pace. We were impressed Kevin’s knowledge and teaching ability. He is a great math resource.
Details: Undergraduate school • Calculus • 14 - 17 years old • Learn new topics and techniques • Once a week • At the pro’s location • My home, venue, etc.
Math Tutoring
Mariana D.
Feb 18, 2025
Professor Kreighbaum is probably the best tutor I’ve ever had. He is very patient and knowledgeable and will meet you at your level and explain things as thoroughly as possible. I went from having to drop a class because I couldn’t grasp any of the concepts to acing all math courses I’ve taken since then, including the one I had to drop. He helped build my confidence and never once made me feel lesser than for not understanding something or taking a little longer than usual to grasp the concept. All in all, a great teacher!
Credentials
Background Check
Kevin Kreighbaum
FAQs
What should the customer know about your pricing (e.g., discounts, fees)?
Our standard pricing is $75/hr. However we have discounts available for students who purchase packages of sessions.
Also, your first session is complementary!
What is your typical process for working with a new customer?
Every student is different. When meeting a new student we make sure to identify the learning strategies that work best for each individual. Our expertise allows us to quickly assess problem areas, develop a framework for future success, and cultivate additional practice that targets the needs of each student.
What education and/or training do you have that relates to your work?
Each of our tutors has at least a master's degree and 10+ years of experience teaching at the university level in the classroom. We are experts in our fields and pride ourselves in our ability to relate the most difficult concepts in the most approachable manner to all of our students.
