**GOAL Problem Solving Protocol**

__G__**ather information: ** What is known? What are you looking for?
Predict a reasonable answer with units. (Consider limiting cases.)

__O____rganize your approach:__Draw a diagram(s) labeled with variables from G step.
Classify the problem according to the general physics principle(s) used.
Describe how you will use the general principle(s) to solve the problem.

__A____nalyze the problem: __Identify and show general physics equations.
Add constraints that specify condition that restrict the problem.
Solve for the unknown variable in terms of the known variables.
Substitute known values, calculate answer, round appropriately.

__L____earn from your efforts: __Check your answer. Does the answer agree with the prediction in G step? Correct units?
Does the algebraic result make sense for limiting cases?
If the problem were modified, how would the result change? How did the problem help you improve your problem- solving skills? Is there a link with real-life situations?