Scott P. Raffone
Our academic goal of this lesson is to take the information that we charted and be able to explain the information using a linear equation. The popular method that has been used throughout the world in the slope-intercept formula or y = mx + b (m is the slope of the line and b is the y-intercept). The slope of the line is the description of "how fast or slow it is increasing or decreasing." The y-intercept is the value when our line intersects the y-axis.
We start with water at room temperature; which was approximately 60
0
Celsius. This is our first measurement. When we begin, our first measurement is assigned zero, signifying the starting point. Our y-intercept (b) will be approximately 60
0
. In order to get a positive slope in our graph, we place the water on a heating element. In order to get a negative slope to our graph, we add ice to the water. In order to get a line of best fit with no slope, the temperatures of the water will be 0
0
or 100
0
. It is important that they can recall back from the Tomato Sauce lesson to help identify these ideas.