In the following lesson, students learn to write a linear equation in Point-Slope form. They are presented with the general formula used with point slope form, and then practice writing equations in this form. They next encounter a graphed line with a point and they figure out the slope either with the formula or by counting grids. They proceed to learning to change a linear equation from point slope form to slope-intercept, and then begin to write equations that are parallel to a given equation and running through a given point. The lesson concludes with a real-life problem involving scuba diving and the pressure of water per square inch. This is a concept that is new to most students and it is lots of fun to teach!