Initial research topic, (irt)

To make sure that we could make a presentation and do research, each SYP (senior year project) participant, was  randomly assigned a research topic. Below is my presentation on Left-Hand Reimann sums.   Note: This topic is very visual, and hard to comprehend for me as a blind person, but hopefully my explanations make sense. A Reimann sum is a way to measure the area under the curve of a function. It is named after German Mathematician Bernhart Reimann. 
To create the reimann summ,  we should split the area under a function's curve into  rectangles of equal bases, called sub-intervals. Left-hand sums are those in which the sub-interval's left corners touch the curve, meaning that the corner's vertex is a common point with the function, while in Right-hand Reimann sums, the vertexes of the right corners of the rectangle must touch the curve.