...I have taught geometry for over 40 years in High School and College and have written test question for the SAT. Prealgebra is not only a theoretical tool for analyzing and describing mathematical relationships, it is also a powerful tool for the mathematical modeling and solving of real-world pr... (read more)
...I helped my sister for AP calculus class. As a result, she can skip the calculus 1 course and take calculus 2 in her very first semester of her college year. I have an A in General, Organic, and Analytical and Quantum chemistry. (read more)