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.