Lesson 4: Symbiotic Relationships
Duration of Days: 3
Lesson Objective
Categorize species interactions including Mutualism, Parasitism, and Commensalism.
How do different species depend on one another for survival, and how do mutualism, commensalism, and parasitism shape biodiversity?
HS-LS2-2: Use mathematical representations to support and revise explanations based on evidence about factors affecting biodiversity and populations.
Understanding how biological interaction differs from colloquial interaction and identifying relationships in complex technical passages.
Students categorize complex interactions such as mutualism, parasitism, and commensalism.
(DOK 2)
See "Materials / Resources / Text / Speakers" field
Interaction Case Studies. Students read short descriptions of terrestrial pairs (e.g., mycorrhizal fungi and oak trees) and must defend their categorization of the relationship using a CER (Claim, Evidence, Reasoning) format.