Difference between revisions of "Example"

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An example is a problem plus the [[step]]s leading up to its solution.  For instance, if the problem is "Solve 12+2*x=15 for x" then one example is:
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An example is an instance of a [[knowledge component]] or of one more applications of a knowledge component (see [[worked examples]]).  For instance, the following is an example of the algebra knowledge component, subtracting from both sides of an equation to isolate a variable term:
  
In order to solve 12+2*x=15 for x, we write
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  x+5 = 18
; 2*x=15-12
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    x = 18-5
; 2*x=3
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; x=3/2
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; x=1.5
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There are 4 steps in this solution.
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An example of the past-tense rule in English for regular verbs (to add "ed") is:
  
Some examples do not contain explations of steps, as in the one above, but some do.
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The past tense of "jump" is "jumped".
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Providing examples is a form of [[implicit instruction]].
  
 
[[Category:Glossary]]
 
[[Category:Glossary]]
 
[[Category:PSLC General]]
 
[[Category:PSLC General]]

Latest revision as of 17:42, 10 April 2007

An example is an instance of a knowledge component or of one more applications of a knowledge component (see worked examples). For instance, the following is an example of the algebra knowledge component, subtracting from both sides of an equation to isolate a variable term:

 x+5 = 18
   x = 18-5

An example of the past-tense rule in English for regular verbs (to add "ed") is:

The past tense of "jump" is "jumped".

Providing examples is a form of implicit instruction.