Reflection: Complex Tasks Exploring Relationships - Section 3: Exploration 2 - Relationships


At this level, students usually have been exposed to food chains and food webs several times. However, this lesson explores some relationships more in depth. Students are being asked to recognize relationships beyond "simple" predator-prey relationships. They visualize how organisms can provide shelter and materials, can benefit each other (plover/crocodile), and how an increase or decrease of even the smallest creature can disrupt a complete ecosystem. In other words, they start exploring the big picture of Interdependence of Organisms.

Although you might be tempted to provide more guidance while the students are working, and perhaps introduce the specific vocabulary (symbiosis, mutualism, etc.), I would warn you against it, as it can easily become an "information overload" lesson. You want to keep students' eye on the concept of interdependence, knowing that the specific relationships they notice during this lesson will be addressed in the Relationships Between Organisms lesson.

  The Big Picture
  Complex Tasks: The Big Picture
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Exploring Relationships

Unit 9: Interdependence of Organisms
Lesson 3 of 8

Objective: Students will be able to analyze data from a simple food chain and explain complex relationships in food webs

Big Idea: Every species is linked with a multitude of others in an ecosystem.

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79 teachers like this lesson
Science, food chain, food web, carbon cycle, endangered species, organism, Ecosystems, Biotic and Abiotic Factors, Interdependence of Organisms
  55 minutes
auto and heterotrophs
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