Today’s Lesson: “SLOPES”

Slopes are commonly associated with:

Slopes are commonly associated with:

Slopes are commonly associated with:

Slopes are commonly associated with:

The slope we are studying is associated with the graph of a line.

What is your Definitions of SLOPE? Allow students time to copy definitions. May need to review that a ratio is a comparison of numbers

SLOPE is… • The tilt or inclination of a line • The ratio of vertical change to horizontal change. • The change in ‘y’ over the change in ‘x’

Vertical Change (rise) Horizontal Change (run) To determine a slope: Vertical Change (rise) Horizontal Change (run)

How many points do you need to draw a line? • One? • Two? • Three or more? Quiz students by a show of hand

Practice problem #1 Graph: (3, 2) and (-1,-1)

Draw a line through the points

Remember we are finding the following ratio: Let’s find the slope of our line: Remember we are finding the following ratio: Vertical or Rise Horizontal Run Find the slope

Vertical Change or the Rise 3

Horizontal Change or the Run 4 3

= Vertical Rise Horizontal Run 3 4 May need to remind students that a ratio is a comparison of two numbers Reminder: A ratio is a comparison of two numbers

Now, Let’s have some fun with the “Barbie Bungee Jump” Activity Now, Let’s have some fun with the “Barbie Bungee Jump” Activity! =) Group yourselves into 3~4 people