AIM: What equations represent the relationship between time and distance for your walking rate?
If you were absent for a midterm, please see me during lunch for instructions on how to make it up.
"Comparing and Scaling" textbooks are also due back, in exhange for the new "Moving Straight Ahead" book.
HW: Unit 4 Problem 1.1 A&B, p.9
Classwork: Students were presented with two graphs and were asked to list as many differences between the two as they could. Some of the responses: a) one starts at the origin, the other starts above the origin b) one is a straight line, the other is not straight c) one is a proportional relationship, the other is not.
We discussed that today's lesson will center on lines and the relationship between two variables. We talked about the general form of a line (y=mx+b), where m represents the slope of the line and where b represents the y-intercept. To illustrate this concept, we determined each student's walking rate. In the hallway, 10 meters were marked off and students used stopwatches to find the time it took to walk the distance. That information was used to answer homework questions.