Balls: Scott Walker has 'em

[a completely inoffensive name]

Not just technically - in every way. 2 + 2 means two apples and two apples, making that clear is vital.

Well, when the situation they give you isn't realistic, then it loses it's purpose. Then again, I have only come across few books with questions that were not realistic.

EDIT: Again, my point though is that younger students are less receptive to the word problems then any other in my experience.