CBC Archives

Divide the class into groups of three or four. Have each group list on chart paper what the students already know about the causes of pest infestations (rapid and uncontrolled population growth) and the ways we attempt to control pest populations. Each group will then share its list with the rest of the class. Post the lists around the classroom.

Have students begin by viewing Clip #8 on the topic What’s Eating Canada’s Trees? on the CBC Radio and Television Archives Web site. Each group will then use the Web sites listed on the download sheet The Mountain Pine Beetle Infestation to research the causes and methods of control of pest infestations, using the mountain pine beetle as an example. Students will prepare a summary and a five- to ten-minute presentation (poster, multi-media display, simulated news report, and so on) to share their information.

Each group delivers its presentation to the class. As a class, discuss the following: How can we use what we have learned about the dramatic rise in population and subsequent spread of the pine beetle to prevent outbreaks in the future? What procedures should be put into place to control the growth of other “pest” populations?

Assessment Tip
Students can complete a self-assessment or write a journal entry to comment on their understanding of this topic.

Students can record in their journals their thoughts, insights, questions, and/or concerns on the issues raised in class.