using classification keys

Using Classification Keys

Learn what classification keys are and why they are used in biology. Discover how dichotomous keys help identify and group living things. Follow step-by-step choices between contrasting characteristics to accurately classify a variety of organisms with confidence.

Target Grade:

Lesson Overview

By the end of this unit, students will be able to:

  • understand what classification keys are and why they are used in biology;
  • explain how classification keys help in identifying and grouping living things;
  • follow a dichotomous key to identify a variety of living things;
  • demonstrate the ability to make accurate choices between two contrasting characteristics at each step of the key.

 

Curriculum Alignment: Year 4 Science: Living things and their habitats

  • explore and use classification keys to help group, identify and name a variety of living things in their local and wider environment.

    Last updated on: February 17, 2026

    More Resources You’ll Love

    Classification of Living Things
    circuit symbols and diagrams
    Circuit Symbols and Diagrams
    food chain
    What is a Food Chain?
    food chain
    Food Chain Quest: The Predator’s Path