Level 4: Consider properties of unit in relation to goals of measurement.
4E
Symbolize unit of measure as distance traveled.
"You don’t write a 1 in the middle of the unit like this one. . .
. . .because the unit starts at zero and ends at 1 – that’s how far you have traveled! When you put it in the middle, it’s not easy to see where the unit ends!"
. . .because the unit starts at zero and ends at 1 – that’s how far you have traveled! When you put it in the middle, it’s not easy to see where the unit ends!"