This material fits to an interdisciplinary lesson concerning the topic food. Students cut out the foodstuffs and match them to the red poster (unhealthy) or to the green poster (healthy).  If there isn’t a colour copier in your school, you can glue the big teeth on red and green posters and the students can glue foodstuffs on it they found in advertisement magazines. The pictures can be named as well. In the end of the lesson students can present their work (... is a healthy food./... is  an unhealthy food. or … is healthy./... is unhealthy.)