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Cristl A.'s Photo
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Experienced Middle & High School Math Tutor, Grades 6–12
Cristl A.

4.9 (2,106 ratings)

7,335 hours tutoring

Your first lesson is backed by our Good Fit Guarantee
Hourly Rate: $65
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Response time: 42 minutes

About Cristl

Bio

I’m a patient and dedicated tutor who loves helping students turn math struggles into successes. Whether your child has learning differences or simply needs a steady, experienced guide who connects well with young people, I’d be honored to help them build confidence and skill in math. Many of my students stay with me from middle school through high school, and I treasure those long-term relationships — watching their abilities, independence, and problem-solving confidence grow over...

I’m a patient and dedicated tutor who loves helping students turn math struggles into successes. Whether your child has learning differences or simply needs a steady, experienced guide who connects well with young people, I’d be honored to help them build confidence and skill in math. Many of my students stay with me from middle school through high school, and I treasure those long-term relationships — watching their abilities, independence, and problem-solving confidence grow over time.

My subjects include Pre-Algebra; Algebra 1 & 2; Geometry; NC Math 1, 2, 3 & 4; and Pre-Calculus. I also support ACT, PSAT, SAT math, and NY Regents math prep for my long-term students.

My love for teaching began in Baltimore, volunteering as a math and reading tutor for inner-city youth — a rewarding challenge that sharpened my ability to spot learning gaps and adapt lessons creatively. Since then, I’ve logged over 10,000 hours of tutoring, including Varsity Tutors and in person with more than 100 local students.

Before becoming a full-time tutor, I spent nearly 20 years as a molecular biology and genetics researcher at Johns Hopkins Medical School and Duke Medical Center, co-authoring articles in top scientific journals. My background in laboratory research demanded precision, logical problem-solving, and clear communication — the same skills essential for mastering mathematics. I help students see that math is more than numbers; it’s a powerful tool used to solve real-world problems in science, technology, and beyond. I bring this mindset to every lesson, helping students build both skill and real-world appreciation for math.

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Education

UMBC
Biology
Johns Hopkins University
Graduate Coursework

Policies

Schedule

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Approved Subjects

Algebra 1

Algebra 1

Having tutored in the Wake County area for over 10 years, I am familiar with the WCPSS math curriculum. When the Common Core standards came on the scene in 2012, I had to quickly adopt the new material being taught. I am now well versed in Common Core Math, levels 1, 2 and 3, which is a combination of Algebra 1 & 2, geometry, and discrete math. I also tutor all of the honors classes mentioned above.
Algebra 2

Algebra 2

Algebra 2 is now combined with the Common Core standards, which is composed of statistics, probability and discrete math. I took Population Statistics in college, a required course for my biology major, which helped equip me for tutoring the Common Core topics.
Geometry

Geometry

I enjoy helping students who have trouble visualizing how to solve problems, or where to start when trying to solve a proof. Often times a diagram might have too many lines for a student to comprehend what they are looking at. I can help them to dissect a problem into smaller, easier parts, until the whole puzzle is put together and be able to see the bigger picture.
Prealgebra

Prealgebra

I began tutoring Pre-algebra as a volunteer at an inner city elementary school in Baltimore, MD. for about 3 years. Typically, students struggle in Pre-algebra because they are not skilled with basic math facts, so I make sure they are proficient in that. Tutoring as a volunteer has helped me to quickly target weak areas and help the student to improve upon those.
Precalculus

Precalculus

Precalculus was not an offered subject when I was attending school way back when. After Algebra 2, you took trigonometry and then calculus. Times have changed, so I took two semesters of online precalculus classes (parts 1 & 2) at BYU, and got high A's in both courses. I have experience tutoring high school precalculus and have worked with students from Wake Tech.
Trigonometry

Trigonometry

I tutor all levels of trigonometry from basic right triangle trig, which is taught in middle school, to the more advanced level found in precalculus classes. I can help students solve trig identities (which can be like trying to solve a jigsaw puzzle without a picture), trig equations, navigation word problems, and more!
PSAT

Examples of Expertise

Cristl has provided examples of their subject expertise by answering 21 questions submitted by students on Wyzant’s Ask an Expert.

See all of Cristl ’s answers ›
Cristl A.'s Photo

Questions? Contact Cristl before you book.

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Contact Cristl
Response time: 42 minutes

Ratings and Reviews

Rating

4.9 (2,106 ratings)
5 star
(1,971)
4 star
(130)
3 star
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2 star
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Reviews

Expert, flexible and relatable

Cristl is an amazing tutor. We were so fortunate to have found her. Not only does she know the topic of Algebra 1, she teaches in an approachable way. My daughter has anxiety with Math and she always left her lesson at ease and smiling. That is huge! Cristl was patient and kind and always helped in a friendly manner. I know my daughter would not have been as successful in her class without her help. We got to the point in the class that was beyond my ability and I can’t tell you the relief felt by not only myself but my daughter to have an expert to call on regularly. Cristl was always responsive and flexible with her availability. We look forward to continuing working with her next year.

Shawna, 89 lessons with Cristl

Amazing

Fully confident in my daughter working with Cristl! My daughter has only had one session so far and left the session feeling very comfortable with the geometry lesson. Looking forward to seeing the progress she makes with Cristl!

Lakitia, 2 lessons with Cristl

Great Tutor!

Cristl has been helping our son in Honors Algebra II and has been a great help in reinforcing and building confidence in areas where our son has struggled or even just needs a little extra boost. She’s been wonderful!

Nicole, 6 lessons with Cristl

Awesome Tutor

Cristl was wonderful and patient with my 15 year old daughter. She helped her prepare for an honors geometry test. My daughter felt very good about the session and gained the understanding she needed for the test.

Taylor, 2 lessons with Cristl

Christl is an amazing instructor

Christl is such a skilled instructor , the word tutor seems inadequate. My son’s is much more confide t in math , in assessments and attitude. It’s actually becoming his favorite subject, that’s in part due to the skill of instruction by Christl.

Carl , 23 lessons with Cristl

Christl is an amazing instructor

Christl is such a skilled instructor , the word tutor seems inadequate. My son’s is much more confide t in math , in assessments and attitude. It’s actually becoming his favorite subject, that’s in part due to the skill of instruction by Christl.

Carl , 23 lessons with Cristl

Christl is an amazing instructor

Christl is such a skilled instructor , the word tutor seems inadequate. My son’s is much more confide t in math , in assessments and attitude. It’s actually becoming his favorite subject, that’s in part due to the skill of instruction by Christl.

Carl , 23 lessons with Cristl

We love Cristl!

Cristl understands my child's sticking points with learning math (since she has been diagnosed with dyscalculia) and makes it VERY approachable and dare I say fun.

Gina, 19 lessons with Cristl

excellent

Cristy is an excellent tutor! She explains things so my son can easily understand. He is in Algebra 2 honors. She is very responsive to messages and very patient. Highly recommend!

Jennifer, 25 lessons with Cristl

Very knowledgeable and patient

We had a great experience with Cristl. Our daughter learned what she needed and felt confident afterwards. She helped our daughter with Algebra 2. Will use again!

Jesse, 4 lessons with Cristl
Hourly Rate: $65
Response time: 42 minutes
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