Introduce your students to their new friend, Robby the Robot. Robby the Robot comes from a galaxy not too far away. His mission: to help earthlings with input/output rules (math functions). Robby is programmed to transform numbers and it's the students' job to figure out what the rule is and what the "transformed" numbers are.
There are two PowerPoints with Robby the Robot to help teach the input/output tables (1 for addition/subtraction and 1 for multiplication/division). Use the worksheets a