Guiding students through thematic discussion can be challenging, and then they face a thematic essay. Using the 3 themes presented here - with cloze notes for student note taking.
1. The Indispensable Struggle for Mastery
2. The Power of Ancestral Memory and Primitive Instincts
3. The Laws of Civilization and Wilderness
The discussions present opportunities to teach "them", vocabulary like anthropomorphism, atavism, and common theories of survival (kill or be killed, man's adaptation).
The guided essay prompt clearly indicates what a student should have in each paragraph of his/her essay, and highlights the necessity of using evidence/specifics/details to support ideas.
Overall this is an excellent way to generate class discussion, opportunities for close reading of text, and having student's write a thematic essay with guided practice.