We frequently do word problems in class. And the method that we enforce is called UPSC, which stands for Understand, Plan, Solve, and Check. (We actually say U-P-S-Check) Not that any of the kids will actually USE UPSC on a test, when I'm not physically in the room with them, but it's a pretty darn good solving model.
Today, I was midway through walking the kids through the solution of our word problem, when lunch time arrived. We had already filled out the Understand box, and we had reasoned out whether our initial Plan should be to add or subtract.
In the Plan box, I wrote "Add," followed by the usuals -- "Draw a picture," and "Number sentence." Then I wrote, "Go to lunch," as I announced it was time to eat.
Let's just hope none of the kids actually ever write "Go to lunch" as their plan during a test!