Prof. Johnsen knows his stuff and is very efficient in answering your questions in a timely fashion.

Did not really answer my questions - got me more confused. I wasted $20 - I won't use him again.

Excellent work, the guy can help you understand any facet of calc work. Thanks

thanks a lot! This really helped me, not only with this problem, but with the understanding of related rates.

I took College Calculus and College Algebra with Ed. He is definitely one of the better math tutors I've had. He takes time to go over any problem areas with you and shows interest in your overall performance. I would highly recommend him to anyone needing a math tutor.

I received a response promptly and received my answers the following day. The detailed explanation of each question was unbelievably helpful. It was sent very professional looking, he included graphs, equasions, and examples. I will use his help for the rest of my course and I would definitely refer him to friends.

I was stumped on a related rate question for calculus and Clarity explained in detail and in a timely manner...I'm talking less than 2 hours later I had the answer. It was a huge help in getting me to understand where I had gone wrong in working out the problem. Thank you so much.

I really satisfy what the instructor explains and teaches. I really got help.

This man knows is Calculus. Very quick and awesome answers. Worth every dollar. Highly recommended.