These stations will help students to practice solving and graphing inequalities. This is a great group activity to have them spread out around the room and have students rotate from station to station. There are some inequalities that have all real numbers as the solution, as well as some with no solution.
Another way that I sometimes like to use them is to put them in sheet protectors (way cheaper and less time consuming than laminating) and have students complete with a dry erase marker. Once they have completed, they bring me their work and I check it off and they can continue to the next station.
As an extension, I will have students go around helping other groups that are stuck. Or I have them make their own station to give to their group members to complete as more review.