To classify is to identify or arrange objects or ideas according to a common characteristic or a unifying relationship. The group of objects or ideas would then have a common label.


  1. Select a basis for grouping.
  2. Examine each item to identify its characteristics or features.
  3. Identify similarities and differences.
  4. Place items with common features in the same category or group.



Oral Practice


  • Name as many animal pets as you can.
  • What pets can be grouped by their covering?

(fur, feathers, scales)

  • What pets could be grouped by their number of legs?

(two legs, four legs, no legs)

  • What pets could be grouped by the way they move?

(walk, fly, swim)

  • What other groups can we think of for animal pets?



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