a. jost
Mathnasium completely turned around our then 8 y/o’s attitude about math. After one day at Mathnasium, he was ...
See more reviews heres. paruzzolo
My kids (6th and 8th grade) love going to Mathnasium. It’s fun - they get rewarded for their work and enjoy le...
See more reviews hereOur 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.
At Mathnasium of Kalorama, our specially trained tutors use the Mathnasium Method™ to help students build a deep understanding of math. This proprietary teaching approach blends personalized learning plans with mental, verbal, visual, tactile, and written techniques, ensuring instruction is tailored to each student’s unique needs and learning style.
The Mathnasium Method™ is designed to create a solid foundation for math excellence, helping students truly understand—and even enjoy—math.
Our caring, specially trained math tutors in Kalorama provide face-to-face instruction in a supportive and engaging group environment. We work with K-12 students of all skill levels, both in-center and online, to help them reach their full math potential.
Learn how Mathnasium tutors helped Malachi gain confidence in math.
At Mathnasium of Kalorama, students receive personalized learning plans designed around a detailed assessment of their skill level, challenges, and academic goals.
This customized approach helps students learn at their own pace while strengthening critical thinking, problem-solving skills, and the confidence needed to succeed in math.
Discover how Mathnasium helped Maddie transform her math skills to achieve more confidence in the subject. Initially struggling with the lowest math grades in her class, Maddie worked with our tutors using a personalized approach tailored to her specific needs.
Math Tutors Near You
Mathnasium’s specially trained math tutors work with students across the 20005, 20008, 20009, 20036, and 20037 zip codes. We proudly serve families throughout Kalorama and nearby areas, including:
Specially Trained and Caring Team
Riss Mendizabal
Area Manager
My name is Riss Mendizabal! I was born in Matanzas, Cuba and grew up in Miami and graduated from Ransom Everglades. Education is something I have always been passionate about. As a former instructor for Breakthrough Miami, I know first hand the importance of a strong mathematical foundation in children's lives. In my off time, I enjoy cooking and spending time with my 7 year old lab, Lenny.
Jenny Colletti
Director of Education
Jenny has been part of the Mathnasium team since 2013 and is passionate about making math meaningful for every student. She holds a degree in Math and Sociology from the University of Miami and believes that students learn best when encouraged to find their own problem-solving approach.
Her favorite part of the job is watching confidence grow and seeing those “lightbulb” moments when a student finally connects with a tough concept. Jenny is committed to ensuring that every child feels supported and capable in their math journey.
Elizabeth Fraga
Director of Operations
Elizabeth brings both insight and heart to her role as Director of Operations at Mathnasium. She holds a bachelor’s degree in Psychology from Florida International University and uses her understanding of how children think and learn to support effective instruction and team development across centers.
As a proud mom of two boys, Elizabeth knows firsthand the value of confidence-building education. Whether managing operations or creating a positive learning environment, she believes in the power of patience, encouragement, and a well-timed snack.
Laura Hamel
Owner
Laura is committed to making math approachable for every child. She holds a BS in Business from Wake Forest University and is raising three sons who remind her daily of the importance of education. She and her husband Jonathan opened their first Mathnasium center in 2014.
Since then, Laura has played a key role in creating welcoming learning spaces where families feel supported and students thrive. Her passion for helping children grow and succeed makes her a vital part of the Mathnasium mission.
Jonathan Hamel
Owner
Jonathan holds a BA in Economics from Wake Forest University and earned an International MBA through a joint program with the University of South Carolina and Wirtschaftuniversität Wien in Austria. With nearly two decades of experience in finance, he brings deep insight into the long-term value of strong math skills.
A runner and former lacrosse player, Jonathan sees math mastery much like athletic training—built through practice and discipline. He enjoys working with children and volunteers as a lacrosse coach for his sons' team, combining his love of education, sports, and community involvement.
Mathnasium of Kalorama's personalized programs are designed to support students at every stage of their math journey.
For preschool and kindergarten students, our caring tutors focus on building number sense, critical thinking, and problem-solving through playful activities that spark curiosity and nurture a love of learning.
From addition and subtraction to multiplication, division, fractions, decimals, and percents, we help students in grades 1–5 truly understand how math works and even the subject.
Our program supports middle schoolers with any topic or course—from Prealgebra to Geometry—in a fun, caring environment where abstract concepts become clear and manageable.
High school students receive personalized help with rigorous coursework, including Algebra, Trigonometry, and Precalculus, as well as standardized math test preparation to achieve their academic and admissions goals.
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 what they still need to learn.
FAQ
Mathnasium of Kalorama is located at 1608 20th St NW, Ground Floor, Washington, DC 20009, just one block from historic Dupont Circle and directly outside the Dupont Circle Red Metro Line stop. Our convenient location makes it easy for families in NW DC—especially those in the Kalorama and Dupont Circle neighborhoods—to attend regularly.
We proudly serve students from local schools, including:
Ross Elementary
Oyster-Adams Bilingual School
John Francis Stevens Education Center
BASIS DC
Emerson Preparatory School
Yes. Mathnasium of Kalorama provides both in-center and online tutoring. All students—whether attending online or in person—receive personalized, face-to-face instruction from the same specially trained tutors in a supportive and engaging group environment.
No. Online sessions provide the same quality instruction, personalized learning plans, and real-time support that students experience at our learning center. Both formats deliver face-to-face instruction and a collaborative group environment.
We work with students in grades K–12 across a wide range of math topics, from early arithmetic to Algebra and Geometry.
Our specially trained math tutors in Kalorama help students strengthen foundational skills, build confidence, and improve academic performance.
We offer structured math tutoring through a flat monthly membership with no long-term contracts. Most students attend 2–3 times per week. We’ll determine the right plan for your child during a free assessment.
For details, contact us at [email protected].
No. Our pricing is the same whether students attend in person, online, or through a hybrid schedule.
Each student begins with a diagnostic assessment that helps us understand their current skill level, identify learning gaps, and clarify their goals. These insights allow us to create a personalized learning plan tailored to their needs.
At Mathnasium of Kalorama, we don’t follow a standard curriculum. We use the Mathnasium Method™, a proprietary teaching approach that blends structure with personalization.
Building upon what the student already knows, we add new concepts gradually, breaking them down into manageable steps to help them fill in their knowledge gaps, develop solid foundational skills, and even transform how they think and feel about math.
Yes. We work with students at all skill levels, whether they are looking to catch up, keep up, or get ahead on their math journey.
Students who are struggling benefit from targeted instruction focused on building confidence, filling in foundational gaps, and developing foundational skills. Advanced students receive personalized challenges that deepen their understanding and extend their skills.
Yes. We support K–12 students from all educational settings, including homeschool, private, and public school families throughout Kalorama, Dupont Circle, and the surrounding NW DC area.
Yes. Our tutors set aside time during each session to help students with their math homework and ensure they understand the material they are covering in school.
No. We do not assign homework. All instruction happens during our structured sessions with specially trained tutors, allowing students to focus on making real progress while they are with us.
Yes. Mathnasium of Kalorama helps students prepare for standardized and school-based math assessments, including state exams, ACT®, and SAT®. Our test prep includes personalized learning plans, focused review, and test-taking strategies that support student success.
Knowledge Hub
1608 20th Street NW, Ground Floor
Washington, DC 20009
| Call: | (202) 991-2099 |
| Email: | [email protected] |
Mon - Thu
3:30 PM - 6:30 PM
Sun
1:00 PM - 4:00 PM
Mon - Thu
3:30 PM - 6:30 PM
Sun
1:00 PM - 4:00 PM
| Mon - Thu: | 3:30 PM - 6:30 PM |
| Sun: | 1:00 PM - 4:00 PM |
| Mon - Thu: | 3:30 PM - 6:30 PM |
| Sun: | 1:00 PM - 4:00 PM |
(202) 991-2099
