Classification
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Classification

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  • Emily Kissner 2011

Classification Classification Presentation Transcript

  • Classification: An Inquiry Skill
  • Classify What does it mean to classify items?
  • Classify To classify means to organize items into groups Can you think of anything that is classified into groups?
  • We can classify… Animals Plants Rocks And much, much more!
  • Different kinds of classification • We can classify items in different ways • A very simple way to classify is to put things in order
  • Serial classification • For example, you could classify the students in your class by arranging them in order from tallest to shortest • In science class, you could arrange a set of graduate cylinders in order from the greatest volume to the least volume • What else could you classify using serial classification?
  • Binary classification • Another way to classify is to divide items into two groups, based on a property • When items are classified this way, one group has the property, and the other group does not
  • Binary classification What are some things that you could classify this way? Living/Nonliving Magnetic/Nonmagnetic Metal/Nonmetal
  • How are these classified? Vertebrates Invertebrates
  • Multi-stage classification • In this kind of classification, we organize items into multiple groups • Usually, the groups do not overlap—items fit into one and only group
  • Multi-stage classification
  • Multi-stage classification There are more categories, of course!
  • You can classify! • What are some things that you classify each day? • What kind of classification do you use? – Serial (putting things in order) – Binary (two groups) – Multi-stage (several groups)
  • Why do scientists classify? Why do scientists use the skill of classification?