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Students construct and use dichotomous keys.

Learning Objectives

Students will be able to:

  • Explain the purpose of an identification key.
  • Use a key to identify weeds.
  • Make a simple dichotomous key.

Curriculum Connections

Science, Living World, Levels 3-4 (for details see: Lesson plan)

Vocabulary/concepts

Identification key, dichotomous key, characters

Time

1-2 hours

Materials

  • Copies of Shape Identification Key
  • Weed identification resources
  • Whiteboard
  • Paper and pencils

Resources