Dear employer,
My name is Alfonso Moya and I have my master on Civil Engineering. As such, I took up to five calculus classes in college. Also, I was a teacher assistant for calculus classes for over two years, so I believe I enough experience to fulfill your expectations.
I really like calculus, so I am very interested in this project because there is nothing better than work in what you love.
We could negotiate the price and the amount of hours without any problem.
Regards,
Alfonso Moya