Teach ecosystem relationships with clear examples students remember.
This TEKS-aligned resource helps students describe and classify
predatory, competitive, and symbiotic relationships—including
mutualism, commensalism, and parasitism.

What’s Included

• Informarion Gap Exercise

• Short answer Exercise

• Exit tickets

Concepts Covered (TEKS 6.12B)

• Predatory relationships
  (predator and prey)

• Competitive relationships
  (organisms competing for limited resources)

• Symbiotic relationships:

  • mutualism (both
    benefit)

  • commensalism (one
    benefits, one unaffected)

  • parasitism (one
    benefits, one is harmed)

• Using evidence from scenarios
  to justify relationship types

How It’s Useful

• Perfect for stations, sorting
  activities, and quick review before quizzes

• Great for discussion, small
  groups, or independent practice

• Exit tickets make assessment
  fast and simple

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