SME
Grade 8 Math
Slope and rate of change
The main lesson, then each kind of problem it solves.
Slope and rate of change
Main lesson
Slope as a unit rate
Use this for “Ana bikes 3 miles in 0.25 hours at a constant speed. What is her speed, and how far in 2 hours?”
Compare two rates
Use this for “One company charges $140 for 5 cubic yards, the other $93 for 3. Which is cheaper per cubic yard?”
The signs of the slope and intercept
Use this for “Which line rises to the right and crosses the y-axis below 0?”