...I am a 68 year old retiree who enjoys working with high school students to improve their algebra and geometry skills. I have been doing on-line tutoring for 4 years and believe I’ve helped several students improve their grades while also keeping my own cognitive skills refreshed in retirement. I also have previous experience as a substitute teacher and teaching religious education. (read more)
...Thus, by definition of antisymmetric, R on A is antisymmetric. Therefore, if R n R-1 ? {(a, a): a ? A}, R on A is antisymmetric. It will now be shown that if R on A is antisymmetric, R n R-1 ? {(a, a): a ? A}. Let m, n ? A. (read more)
...I earned A's in each of my Electrical Engineering courses. I tutored calculus and calculus-based physics for 2 1/2 years. During that time, I also taught Engineering Statics to a summer school student whose professor would only provide exam dates - he did not teach the course. (read more)