J. Brunner
Fantastic place for extra math learning! Great balance of learning and fun; our son is always asking to go. ...
See more reviews here




J. Brunner
Fantastic place for extra math learning! Great balance of learning and fun; our son is always asking to go. ...
See more reviews here
Mathnasium of Crystal Lake's personalized geometry tutoring programs are designed to support students at every stage of their math journey.
We introduce middle school students to foundational concepts like angles, shapes, congruence, and basic measurement, building the spatial reasoning and logical thinking skills needed for high school geometry.
Our tutors guide students through core topics—triangles, circles, proofs, transformations, and the Pythagorean theorem—using personalized plans that make abstract concepts clear and build problem-solving confidence.
Honors students and competition participants can receive targeted support for challenging topics like advanced proofs, coordinate geometry, and complex problem-solving strategies that prepare them for college-level coursework and math competitions.
At Mathnasium of Crystal Lake, our tutors work with students of all skill levels to help them learn and master any geometry topic, from angles and basic shapes to coordinate geometry, theorems, and formal proofs.
We provide interactive, face-to-face instruction in a supportive, engaging small-group environment where students can build strong foundations and gain confidence in geometry.
We teach geometry using the Mathnasium Method™, a proprietary teaching approach designed to promote math mastery, including a deep understanding of geometry.
By combining personalized learning plans with interactive teaching techniques, we help students not only grasp important geometry concepts but also enjoy the learning process.
We start each student’s journey with a diagnostic assessment to identify their skills, areas for improvement, and goals. From there, we create a personalized learning plan focused on the topics they need most, such as congruence, transformations, area and volume, or logic and proofs.
Once the learning plan is in place, our tutors provide targeted instruction, adapting to each student’s learning style to close any knowledge gaps, strengthen their geometry foundation, and build lasting confidence.
Our 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.
Geometry Tutors Near You
We help students in Crystal Lake learn and master any geometry concept with personalized learning plans, engaging instruction, and caring guidance. Our center proudly serves local communities, including:
Specially Trained and Caring Team
Jake Kohlhaas
Center Director
Jake is the Center Director at Mathnasium of Crystal Lake and has been part of the team since its opening in April 2014. Starting as an Instructor, he quickly progressed through leadership roles thanks to his deep passion for teaching and student success. He specializes in geometry and has personally worked with every geometry student at the center for nearly a decade.
Jake finds great fulfillment in watching students transform their attitudes toward math. Outside of Mathnasium, he enjoys playing music, skateboarding, snowboarding, fishing, and cheering on his favorite football teams.
Mike & Joanna Ammer
Owners
Mike and Joanna Ammer are the owners of Mathnasium of Crystal Lake. Mike spent over 30 years in the automotive industry, advancing to Director of Fixed Operations, while Joanna has over 25 years of experience managing veterinary practices.
As parents of four, two of whom struggled with math in school, they understand the challenges families face. Their personal experiences inspired them to open a Mathnasium center and help other children succeed. They are committed to building a nurturing environment where students discover that math can be both fun and empowering.
Ryan Ford
Assistant Center Director
Ryan is the Assistant Center Director at Mathnasium of Crystal Lake. He graduated from the University of San Diego with a degree in Integrated Engineering, focusing on Biomedical Engineering. Ryan has been part of the Mathnasium family since 2018 and brings a supportive, encouraging presence to the center.
He especially enjoys watching students overcome past challenges and gain lasting confidence in math. Outside of work, Ryan enjoys playing soccer, listening to music, gardening, and watching both sports and movies with friends and family.
Jessica
Instructor
Jessica is a passionate Instructor at Mathnasium who brings years of experience from the classroom. She graduated from Northern Illinois University in 2007 and currently teaches 6th–8th grade math at St. Margaret Mary in Algonquin. Prior to that, she worked as a paraprofessional supporting students with autism.
Known for her love of math puns, Jessica’s students affectionately call her a “math nerd.” She enjoys making learning engaging for all ages. When she’s not teaching, she spends time with her six nephews and one niece, who always keep her on her toes.
Adam
Instructor
Adam is an Instructor at Mathnasium and a current student at Elgin Community College, where he is pursuing a transfer degree with plans to study biochemistry. He enjoys helping students apply math in real-world contexts and loves learning new math techniques along the way.
His favorite subjects in high school were Algebra and Calculus, especially because of their practical applications. Outside of Mathnasium, Adam enjoys building with LEGOs, going for runs, and playing video games. His enthusiasm for both math and learning is clear in every session he leads.
Ed
Lead Instructor
Catherine
Instructor
Whether they would like to attend sessions in-center or online, 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 the geometry concepts they still need to learn.
FAQ
Students can attend Mathnasium of Crystal Lake at our neighborhood learning center or join live, face-to-face sessions online.
You’ll find our center at 28W Crystal Lake Plaza, Crystal Lake, IL 60014, right next to KD Market and across from Mariano’s. We offer plenty of free parking, and our center is conveniently located for families in Crystal Lake, Huntley, Algonquin, and nearby communities.
Yes! We work with middle school and high school students across standard and honor-level geometry courses.
When needed, our tutors can align instruction with each student’s current topics, clarify challenging concepts, and provide targeted practice that prepares them for quizzes, tests, and projects.
Our tutors help students learn and master geometry topics such as:
Angles and triangles
Circles, polygons, and other plane figures
Transformations: reflections, translations, rotations, and dilations
Coordinate geometry: distance, midpoint, slope
Congruence and similarity
Volume and surface area of 3D shapes
Logic, reasoning, and proof writing
Whether your student is looking to build foundational skills or explore advanced topics, we provide targeted instruction that leads to real results.
We use the Mathnasium Method™, a proprietary teaching approach designed to help students build a deep understanding of any math topic, including geometry.
We start with a diagnostic assessment to pinpoint strengths, weak points, and learning goals. Using assessment-based insights, we build a personalized learning plan to target geometry topics students need help with, whether that’s transformations, coordinate proofs, or understanding theorems.
Our tutors deliver face-to-face instruction in a fun group environment, using multiple modes of learning: mental, visual, verbal, tactile, and written. This helps students understand abstract geometry concepts and apply what they’ve learned at Mathnasium to their school lessons, homework assignments, and tests.
Yes. Our tutors are experienced in supporting students who feel stuck or discouraged in their geometry class.
When a student is struggling with a geometry concept, we provide caring guidance, break down complex ideas into understandable steps, and help rebuild confidence by progressing at the student’s pace.
We don’t just focus on getting the right answer. We take time to explain the why and how behind each problem, so students build the critical thinking and problem-solving skills they’ll need when we’re not there beside them.
Definitely. We work with advanced learners looking to go beyond the classroom curriculum, prepare for math competitions, or succeed in advanced-level courses.
We introduce them to complex proofs, multi-step problem-solving strategies, and real-world applications of geometry concepts that push their thinking further.
Yes. As part of their personalized learning plan, each session includes time for homework support.
Our tutors support students through challenging assignments while making sure they truly understand the material, not just complete the answers. The goal is to build the skills and confidence they need to handle homework independently over time.
Absolutely. We can align instruction with the Illinois Learning Standards and provide test prep for:
Classroom quizzes and unit tests
Final exams
Benchmark assessments
Geometry-related questions on the ACT®, SAT®, as well as state tests
Geometry sections of the Illinois Assessment of Readiness (IAR)
We also teach test-taking strategies to help students perform confidently under pressure.
Yes. Students can participate in live, face-to-face online sessions with the same tutors they would meet in-center.
Our online program delivers the same personalized learning plans and caring guidance as our in-center sessions.
No. Students receive the same personalized learning plan, face-to-face instruction, and expert guidance regardless of the format.
Many students even work with the same tutor they would meet at our Crystal Lake center.
At Mathnasium of Crystal Lake, we use the Mathnasium Method™, our proprietary teaching approach that blends personalized learning plans with proven strategies to help students build a deep understanding of geometry.
Whether the goal is to strengthen foundational skills, keep up with class, or explore advanced concepts, we meet each student at their current level and guide them forward.
We explain geometric concepts in clear, everyday language and present them in ways that make sense to each student. Using a mix of mental, verbal, visual, tactile, and written techniques, we adapt to individual learning styles.
Our tutoring environment is caring and engaging, often incorporating hands-on activities, games, and real-world applications, so students not only understand geometry but also enjoy learning it.
Each student starts their Mathnasium enrollment with a diagnostic assessment that allows us to evaluate their current understanding and goals.
Using assessment insights, we design a customized learning path and adapt instruction in real time as the student works through it. Whether online or in-center, we make sure students truly understand the geometry concepts they are working with.
Yes. Our tutors are knowledgeable about the Illinois Learning Standards for Mathematics and can align with the geometry curriculum used in Crystal Lake Elementary District 47 and Community High School District 155, as well as local private and charter schools.
We work with K–12 students, but most students who come for geometry support are in grades 7–11. This includes those in middle school, high school, and honors programs.
Whether your student is just learning about shapes and angles or solving coordinate geometry proofs, we can help them succeed.
It’s easy to begin! Once you schedule a free assessment, we’ll evaluate your student’s needs, create a personalized learning plan, and enroll them in sessions.
Most students start their sessions within a few days of enrollment.
Includes a 30-minute assessment & consultation. This is a great way to find out how your child is...
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Sep 5, 2023
28W Crystal Lake Plaza
Crystal Lake, IL 60014
| Call: | (815) 526-3453 |
| Text: | (815) 526-3453 |
| Email: | [email protected] |
Sun
11:00AM - 3:00PM
Mon
3:00 PM - 7:00 PM
Tue
10:00AM - 12:00PM
Tue
5:00 PM - 7:00PM
Wed
3:00PM-7:00PM
Thu
10:00AM - 12:00PM
Thu
5:00PM - 7:00PM
Sun
11:00AM - 3:00PM
Mon
1:00PM-8:00PM
Tue
10:00AM - 8:00PM
Wed
1:00PM - 8:00PM
Thu
10:00AM - 8:00PM
| Sun: | 11:00AM - 3:00PM |
| Mon: | 3:00 PM - 7:00 PM |
| Tue: | 10:00AM - 12:00PM |
| Tue: | 5:00 PM - 7:00PM |
| Wed: | 3:00PM-7:00PM |
| Thu: | 10:00AM - 12:00PM |
| Thu: | 5:00PM - 7:00PM |
| Sun: | 11:00AM - 3:00PM |
| Mon: | 1:00PM-8:00PM |
| Tue: | 10:00AM - 8:00PM |
| Wed: | 1:00PM - 8:00PM |
| Thu: | 10:00AM - 8:00PM |
Have questions? Contact us.