Intro to Summations - PowerPoint vs. Handouts
In calculus I, summation notation is introduced for finding area under a curve using an infinite number of rectangles. From Fall 04 to Spring 15, I utilized a Power Point to introduce the concept. A lecture would be given with interactive moments throughout the lesson. Students would try problems on their own and in teams. The scores on the exam averaged a mid to high D. Approximately 40% of the class would show little to no work on summation problems. Each semester, the lesson would be updated. Yet, exam scores stayed at a D average with no improvement on summations.