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Food webs

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Interactions between organisms can be described in terms of food chains and food webs and can be affected by human activity (VCSSU093)

- constructing and interpreting food chains and food webs to show relationships between organisms in an environment

Learning Intention:

For students to visualise food webs and be able to investigate and predict what changes will have the ecosystem. This activity is done as a potentially more engaging and visual way of seeing the connections and what happens in changing ecosystems. This build upon the knowledge of food chains and classification from previous lessons.

Key Outcomes:

By the end of this module, students will be able to

      -collaborate on tasks to achieve a common outcome

      -create a food web with given animals, and understand the relationships between organisms

      -identify the result of removing or adding species to a foodweb

Teacher Input:

Teachers must hand out the cards, depending on the levels of student engagement or ability. Try to tailor the ability of students to the selected organism to help with confidence. After the cards are distributed establish rules. For example, only speak when you have the string. It is your job to facilitate the discussion and pose different ideas such as population numbers and what effect this has on the ecosystem. You must also record on the board the food web with energy transfer arrows, that way students will be able to write down what they have done after participating physically.

Curriculum Links:

 

Resource:

Explanation of set up with example and extensions 

Assessment: 

This activity has a small amount of assessment. The two criteria are; participation in the class string food web activity and the copying of the class written version. 

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