Get a piece of paper and a ruler. Draw a square with 1 in on each side. What type of flat objects can fit in that little square but not have very much white space, or that are just a little bit larger that the square. Maybe a Quarter coin?
NOTE: It doesn't have to be a square, it could be a rectangle, but if you make the width shorter, then you must make the length longer.
For part two, the same thing but get a bigger piece of paper and draw a square with 12 in on each side. what object can you place in it without going over by too much OR if it is smaller, doesn't show too much white space? May a laptop screen?or the Top of an Xbox one?