Performing Trials

For a given problem, engineers sometimes figure out more than one way to _____

• reach a solution
• isolate a variable
• vary a process
• toss a ring

Getting the ring around the pin, and doing it in one toss were _____

• the criteria for success
• the variables to isolate
• the models to build
• the problems to solve

The conditions that can change, and that can affect our outcome, are called _____

• failure points
• criteria
• variables
• tables

Previously, with the ring toss game, which variable had we decided to isolate?

• the ring size
• the pin height
• how we toss the ring
• the distance from the pin

A great way to organize information from multiple tests is to use _____

• tables
• chairs
• flowers
• globes

For the first test using the table, which variable was isolated?

• the ring size
• the pin height
• how we toss the ring
• the distance from the pin

If we wanted to, we can mix and match to create any combination of _____

• criteria
• variables
• solutions
• failure points

Between trials, we only change _____

• one criterion at a time
• two criteria at a time
• one variable at a time
• two variables at a time

It's possible to design several different tests that lead to the same _____

• criterion
• outcome
• variable
• failure point