This week saw the students of IB Environmental Systems surveying the biotic components that make up an ecosystem. (Biotic refers to the living part of an ecosystem like plants, animals and microbes).
The students started this part of their studies by learning to identify organisms using dichotomous keys. They also created their own keys for animals found in the Collserola and plants from around the school (thanks to Nicanor).
Even though these students would have used identification keys in both primary and in ESO, they found it tricky to be able to create their own. To be able to look for features of an organism that can be used to distinguish it from another is a skill that needs practice to perfect.
Still, this is just some of the skills that the IB gives and expects from these students. Onwards and upwards!