This lesson is meant to be used as guided notes for a whole class.
Students begin by solving 2 inequalities that involve multiplication and division. While checking their answers, they realize that one answer they got is actually wrong. From this, they arrive at the conclusion that we must flip the sign when multiplying or dividing both sides by a negative number. After solving a few inequalities, they then translate and solve a few more.
The last 2 pages are a copy of the key.