Over 900 tutoring hours

Karsten C.

Collegeville, PA


Ivy League Math & Science & SAT Tutor

Background check passed as of 1/13/16
4.9 average from 279 ratings
Great tutor, flexible, and easily understood
— Dan, Downingtown, PA on 3/26/13


Send a message explaining your needs and Karsten will reply soon.

Response time: 23 hours

Contact Karsten

Dartmouth College
Drexel University
Drexel University (Ph.D)
Graduate Coursework


Dartmouth College (Physics)

Drexel University (Master's)

Drexel University (Ph.D) (Graduate Coursework)

About Karsten

Hello students, parents, and potential clients!

I am currently looking for several highly motivated students who want to take their math and science skills to the next level. It's my goal to help my students achieve 100% of their potential and to make math a less stressful subject for them.

Math is not magic! It is a skill and anyone can learn a skill. I won't lie and say that there is any quick route to math or science success. It will require independent work, study and practice, outside of not only the classroom but outside of independent lessons.

I do SAT I & II test prep, AP test prep, and homework help. Currently, I am working to advance one of my student's math education beyond what's being offered in class, and would certainly do so for anyone who wants to get ahead and possibly test out of a class. I would definitely like to try my hand at homeschooling.

I answer all the questions that students don't want to answer in class for fear of "looking stupid." I will get you back on the bandwagon if you are behind in class and if you are cruising, I can introduce new, challenging material. I will help you achieve that test score that will look oh-so-nice on your college application. Drop me an email if you're interested in grabbing the math bull by the horns!

Also, feel free to check out my blog to see that I am actually a real human being and not some impersonal profile!

My background:
*New!* Ph.D Candidate w./ focus in Biophysics & Protein Aggregation
*New!* Second Lieutenant U.S. Army
*New!* Master of Science Degree in Physics - Drexel University '13
*New!* 2 years as Teaching Assistant for PHYS 102, 201 - Drexel University
AP Calculus (5), AP Physics II BC (5), AP Chemistry (4)
SAT's (Old Format) : 1550, Math 800, Verbal 750
SAT II's : Math 800, Physics 800
GRE's : Math 800, Verbal 620, Analytical 4.5
Departmental Honors in Physics
Bachelor's of Arts in Physics - Dartmouth College '07
3 years tutoring in college, both college and hs level
1 year tutoring elementary-12th grade math at Sylvan Learning Center

If you are motivated, I will do what it takes to help you.

Here's some reviews from my Drexel students :

Physics 201 : Modern Physics, Spring Quarter '13
"Best TA I've ever had. Extremely knowledgable, extremely helpful, always entertaining."

"The instructor was great. He provided different methods of teaching that helped me understand certain concepts in a number of different ways. The instructor was enthusiastic and provided great examples."

"Karsten is the only reason I am passing physics. This is the only place I learned physics. I wish I had him freshman year in physics. Karsten would be an absolutely phenomenal professor and I guarantee he will spread a greater understanding and appreciation for physics."

"The most beneficial aspect of this recitation was definitely the instructor. Chu taught with enthusiasm and great knowledge. He made the recitations fun by injecting humor into the conversation of the work at the appropriate times. He clarified many things in lecture that the lecture was not clear about. I would highly recommend Chu as a T.A. in the future."

"Karsten for president"
Hello students, parents, and potential clients!

I am currently looking for several highly motivated students who want to take their math and science skills to the next level. It's my goal to help my students achieve 100% of
Read more

24 hours notice required
Travel Radius
Travels within 20 miles of Collegeville, PA 19426
Background Check: Passed

"Great tutor, flexible, and easily understood"

- Dan, Downingtown, PA on 3/26/13
Karsten replied on 3/27/2013

Your success was entirely the fruit of your own labor, Dan! Students like you are a tutor's dream come true. You are hard-working, self-motivated and persevering. Honestly, you should consider making your own tutor profile on here for I think the student has become the master.

"Karsten is amazing!!!"

- Alexander, Downingtown, PA on 4/6/16

"Just Outstanding"

- Jody, Downingtown, PA on 9/20/15

"Knowledgeable and effective ."

- Andrea, West Grove, PA on 6/5/15

"Great tutor and very patient and humorous."

- Alesandra, Exton, PA on 10/19/12

"Great Tutor!"

- Analise, West Chester, PA on 10/23/11
Karsten replied on 10/25/2011

Thank you very much for being such a great student, Analise. I wish you the greatest of success, but with your work ethic, I doubt you'll have much trouble finding that.

"Awesome Tutor"

- Denise, Downingtown, PA on 7/25/11

"Excellent all around tutor!"

- Marbet, Downingtown, PA on 7/23/11
Karsten replied on 7/23/2011

Thank you *very* much, Mrs. G, for the testimonial. I'd like to take this opportunity to thank you again for your continuing patronage and the privilege to work with your daughter. She's been a fantastic student, always attentive, committed to learning and not once have I heard her complain. It has been nothing but a pleasure working with you and your family and I look forward to seeing you all again after the summer break concludes!

"Excellent tutor"

- Barbara, West Chester, PA on 7/5/11

"The perfect tutor!"

- Sarah, Bryn Mawr, PA on 12/22/10

"Great tutor"

- Debra, Downingtown, PA on 6/14/10

"An Excellent Teacher"

- Utpal, Glenmoore, PA on 12/2/09
Algebra 1,
Algebra 2, Calculus,
Differential Equations,
Geometry, Prealgebra, Precalculus, SAT Math,
Statistics, Trigonometry
Chemistry, Physical Science, Physics
Test Preparation:
C, Computer Programming,
General Computer, Python
Elementary Education:
Elementary (K-6th)
Bodybuilding, Martial Arts

Approved subjects are in bold.

Approved subjects

In most cases, tutors gain approval in a subject by passing a proficiency exam. For some subject areas, like music and art, tutors submit written requests to demonstrate their proficiency to potential students. If a tutor is interested but not yet approved in a subject, the subject will appear in non-bold font. Tutors need to be approved in a subject prior to beginning lessons.

Algebra 1

Algebra - the subject we all need to get right. Preferably the first time. A monster for some and an inconvenience for others. It doesn't have to be a pain however. Come talk to me and I'll provide you with the weapons you need to slay the monster and the skills you need to be successful in not just algebra but mathematics in general.


Calculus is one of the bedrocks for the physical sciences. Not only do I tutor calculus extensively, but teach it in a classroom setting during my recitation sections at Drexel. Finally, I find myself actually applying calculus on a daily basis during my own research into protein aggregation.

Computer Programming

I've been developing in C++, CUDA C, Python, Octave and R daily since I began as a graduate student in 2011. I've put together three complicated numerical models in C++ and CUDA C since that time, each one a practical experience in Object Oriented Programming techniques. My skills got me hired as a professional Software Engineer at Lockheed Martin. I'm most proficient in C++ but Python is a close second. I've never taught programming, but I'm a very experienced tutor so I should be able to communicate lessons in programming fairly easily.

Differential Equations

I have taken the following courses:
Dartmouth College - Math 23 Differential Equations
Drexel University - Phys 100, Phys 101 Mathematical Methods for Physicists

Elementary (K-6th)

I somehow made it to Ph.D level in physics...I think I get it?

In all seriousness, I have a firm background in what it takes to become rock-solid in elementary mathematics. My mother spent a lot of time with me as a young lad and that is precisely what made me into the mathematical juggernaut I am today.

SAT Math

SAT Math - the bane of many students' existence. I've trained since 7th grade to tackle this beast an slew it in high school. Since then, I've helped other aspiring testmasters outthink and humiliate the SAT math section. Every SAT student I've worked with has improved their scores and, most importantly, their confidence with mathematics.

Dartmouth College
Drexel University
Drexel University (Ph.D)
Graduate Coursework


Dartmouth College (Physics)

Drexel University (Master's)

Drexel University (Ph.D) (Graduate Coursework)

Great tutor, flexible, and easily understood — I would highly recommend Karsten as a tutor for anyone looking to improve their knowledge of math and science. Karsten helped me with my recent physics 2 (electrmagnetism) course. He quickly identified my shortcomings, and was able to provide explanations of the topics I was struggling with. Not only does Karsten posses an extraordinary knowledge base, but he is able to convey that knowledge in ...

— Dan, Downingtown, PA on 3/26/13

Hourly rate

Standard Hourly Rate: $75.00

Cancellation: 24 hours notice required

Travel policy

Karsten will travel within 20 miles of Collegeville, PA 19426.