Find similarities in seemingly unlike organisms. The second instructional activity in a series of 12 builds the concept of a taxonomy and explores the use of a dichotomous key. Learners begin in part one by attempting to group a set of 20 organisms. This provides the motivation to create a more methodical approach to grouping. Part two has individuals follow a dichotomous key and then create a key of their own.

Concepts

classifying, organisms, dichotomous keys, taxonomy

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Additional Tags

science

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Instructional Ideas

• Begin with an explanation of vocabulary using a graphic organizer such as a Frayer model
• Expect pupils to work individually to allow for comparisons of decisions throughout the activity

Classroom Considerations

• Requires set up of materials prior to the lesson

Pros

• Provides a teacher guide with sample solutions
• Includes all lab materials necessary for the lesson

Cons

• None