Jim Schulz, with the help of editors, animators, and directors, created this TED-Ed Original Lesson about “Why wildfires are necessary”. The film has a very clear description of how lodgepole pines depend on fire to regenerate and maintain their forest.
After watching the video, you can go to the TED-Ed site (look on the right side of the page) to take an eight-question quiz (“think”), find additional resources (“dig deeper”), and discuss the topic.
TED-Ed describes Mr. Schulz as an “educator”.