10-21-08

Today's schedule was as follows- 1. Homework Check 2. Review homework 3.Reminder about test/ notebook check 4. Bounded area

The class started as Mr. Manning checked the previous night's homework, which was age 29 in the notebook's each student keeps. Page 29 required each student to describe the behavior of each velocity/ time (VT) graph. After describing the behavior, the students were then required to match each VT graph with at least two XT graphs from page 15 in the students' notebooks. Each graph matched up as follows: Graph A of the VT= graphs M, I from the XT; Graph B of the VT= graphs G, K from the XT; Graph C from the VT= graphs H, L from the XT; Graph D from the VT= graphs N, J from the XT; Graph E from the VT= graphs C, D from the XT; Graph F from the VT= graphs A, B from the XT; and Graph G from the VT= graphs O, E, F from the XT.

After homework was checked and reviewed, Mr. Manning then moved on to remind the students that there will be a graphing test on Wednesday, October 23. He then said that there will be a notebook check coming in the near future, i.e. within the next week or so.

After these reminders, the students began to learn about bounded area. Bounded area, or integrals, is a way to find out the displacement of a VT graph. For example, if a graph shows an hourly salary ($/hour) on the y axis, and then time worked (hours) on the x axis, then the bounded area would tell us how much money was earned in the amount of time that certain person worked. Finding bounded area is finding the area of the shape made between the x axis and the line showed on the graph. This shape will either be a trapezoid, triangle, or rectangle/square. The area equations are as follows- square - A = l * w triangle- A = 1/2 b * h trapezoid- A = 1/2 (b1+b2) * h


 * bounded area will be on the test on Wednesday, make sure that you remember bounded area = displacement, however you do not need to memorize the formulas** **