Provide a metaview, lifting students into a wider view of the concept. Use another medium (not reading or writing) to connect students' personal knowing to the concept (i.e. visual arts, music, movement, metaphor, etc.) Involve learners in reflective production that blends the emotional and the cognitive.
“Rule” (Function) Box Activity
Suppose we have a special box with a rule. (Have students guess.)
Alien -> A
Jaws -> J
What rule are we using?
(Spit the first letter of the movie out.)
What if we tried…
2001 -> ?
Error: Rule is first letter, 2 is not a letter. this is a metaphor for domain and range.
Alien, E.T., Jaws = Domain
A, E, J = Range
How about the rule…+1
Input 3, Output 4
Input ?, Output ?+1
How about the rule…square root of x
Input 9, Output 3
Input 16, Output 4
