Have students discuss the differences between a producer and a consumer. Producers are organisms that make their own food. Organisms which cannot make their own food are consumers. Note for students that all animals are consumers. Have students discuss the differences between a predator and prey and how they relate to producers and consumers.
Predators are organisms which eat other organisms for energy.
Prey are organisms which are eaten to produce energy. Lead a discussion as to which of the items in the picture are producers and which are consumers. Students may want to circle all of the producers in green and the consumers in red. If students are not familiar with pie graphs, discuss the types of information a pie graph can illustrate. Have students divide their plate into six equal sections.