This can be used as teacher guided notes or as a classwork activity. There are 8 examples. I usually do the first 4 with students and then have them do the last 4 in pairs or groups. Another way I have used this is by cutting out all 8 problems and use it as a pass card activity. Example, if you have 32 kids put the kids in 8 groups of 4. Give each group a problem. After 3 minutes each group passes their problem and gets another problem. At the end have each group present one problem and the rest of the class can chek to see if they did it right.