Using a Function Table to Determine Time and Distance Travelled

Given a function table containing at least 2 complete ordered pairs, identify a missing number that completes another ordered pair (limited to linear functions).

Review with student vocabulary: input, output, function, variable
Review with student the concept of the function table. An abstract example of a function table would be a soda machine. The student puts one dollar into the machine, pushes the cola button, then the cola is dispensed. Ask the student to determine how many cola cans would come out if two dollars were put in the machine.
Brainstorm with student other types of relationships that could form of function table; examples include hours worked vs pay per hour or cost of an item vs. number of items purchased.
With the student complete the Practice Function Table Worksheet using the student’s media of choice.
If the student is confident, have him/her independently completed te Time vs. Distance Function Table Worksheet along with the Graphs using the student’s media of choice.

If the student has difficulty understanding the concept of the function table, the following lower grade level website might be of help http://www.studyzone.org/testprep/math4/d/functiontable4l.cfm
For online fun with function tables which can be made more challenging go to the following website http://www.mathplayground.com/functionmachine.html

By Susan LoFranco

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