AQA GCSE Geography lesson for the 2016 specification Unit 1B: In this lesson we look at how ecosystems operate, from small-scale ecosystems to biomes.
We start with a retrieval practice task based around coats. We begin by looking at what the biotic and abiotic components of an ecosystem are.
The students are given an example ecosystem and have to categorise the components according to whether they think they are biotic or abiotic. We then look at different scales of ecosystems and look at trophic levels. The students work out which examples belong with which trophic level . We then explore an example of a food chain, using a small-scale ecosystem (a pond) the students have to work out which creatures belong in which trophic level. We then look at biomass in the food chain and discuss why biomass declines at each level. We finish with a 4-mark GCSE style question and there is some tips for students who need it on how to answer it.
Hope this saves you some valuable planning time.
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