This document provides a lesson on using "should" and "shouldn't" to give suggestions in English. It explains that "should" is used to suggest doing something, like "You should do your homework." Examples are given like "You look tired, you should rest." "Shouldn't" suggests not doing something, like "You shouldn't drive too fast." More examples of using "should" and "shouldn't" are provided and students practice making suggestions about pictures. The lesson concludes with a discussion activity to have students make sentences using "should" and "shouldn't."