Part 3: Fire Triangle Notes (15 minutes) Notetaking on fire triangles. Show Fire triangle graph after the notetaking is done. Instruct the students that these 3 fire triangles represent fire as small as a flame to as large as a fire regime, which encompasses a large amount of space and a pattern of fire occurrence over time.
Part 3: Ponderosa Pine Reading and Creating Fire Triangle Activity (35 minutes) Pass out the Ponderosa Pine Fire Ecology reading and the KWL sheet to the students. Have students answer the following questions. What role does fire play in the Ponderosa Pine forest? What were wildfires like before 19990? What have the wildfires been like after 1990? How has the fire regime changed? Have students discuss their answers with their partners before sharing with the class.
Have students use popsicle sticks or paper to create their fire triangles. They must make their triangles and then describe the three essential parts.