Units play an important role in science, as they define a given value. Without a unit, on its own, the value of a quantity is meaningless as the value itself gives no clue as to whether it is referring to a mass, length or volume. Yet this is an area that causes many difficulties for students.

After working through this topic, you will be able to:

  • understand how units are derived from base units and prefixes;
  • use strategies to help learners improve their confidence in dealing with units; and
  • access a set of relevant resources.
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