Creating a Dichotomous Key


Learning Intention:
Students will understand how a dichotomous key is used to classify and identify organisms in the living world.
Success Criteria:
Each student will produce a digital or paper-based key that uses objective, yes/no questions to identify lollies from a mixture.
Year 7 students are doing a unit on Classification of Living Organisms and learning how to create a dichotomous key. A dichotmous key is what scientists and taxonomists use to identify living organisms. We used mixed lollies and asked the following yes/no, objective questions:

1. Is it hard?
2. Is it circular in shape?
3. Does it have a hole in the middle?
4. Is it sugar-coated?
5. Does it contain chocolate?

Here is one that Sophie created using


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