Lego wrapping paper

Pool noodle

cardstock

paper clips

activity. 

     There will be a pocket on the back of

the machine with a function table labeled "in"

and "out" and a heading at the top for the rule. 

     Some days the rule will be given and values filled

in randomly in the "in" and "out" columns.

     Other days, the "in" and "out" columns will be

 filled in, and students must find the rule!

     Answer keys will be provided in another location

for self-checking!

class by relating it to an assembly line:  something goes in,

then something is done to it, and something else comes out!

     Vocabulary:

input     output    function     sum    difference

product     quotient

   We will do several test runs, beginning with the input and rule

both being given.  Students will work in small groups to find the

output.  After several practice sessions, students groups will make

a function table with inputs and a rule and exchange with another

group.

    The next step to occur will be when I display the input numbers and the output numbers, and students find the rule.  Again, students will work in small groups to decide what the rule might be.  We will gradually work from simple rules to functions with more than one step.

     Again, after whole class practice, students will work in small groups to make a function table with inputs and outputs provided, and the rule hidden under a flap. They will then exchange with other groups to solve!

     If the next input is 4, and output is 12 does

     your rule still work?

2.  When, in real life do we start with one thing,

      and end up with another?

3.  If the input is 7 and the function is (x5),

     what is the output?

4.  If the output is 17 and the function is (-3), what

     is the input?