Measuring lengths with different units

The first instance of  is under the Early Math Math Mission. This exercise uses rectangles and tick marks on a ruler to measure a given length and compares the size of the unit of measurement with how many it takes to make the measurement.

Types of Problems
There is one type of problem in this exercise:


 * 1) Use and compare rectangles and units: This problem gives a segment that is measured with rectangles and with a marked ruler. The width of the rectangles is either shorter or longer than the ticks marks on the ruler. The student has four answers to give, the length in rectangles, the length in units, how the rectangle size compares to the unit, and whether more or less rectangles were needed compared to the units.Du1.png

Strategies
This exercise is easy to get accuracy badges because the measurements are not large. The speed badges are medium because of the many answers that are required.


 * 1) If the rectangles are smaller than the unit, then it takes more to measure. If the rectangles are larger than the unit, then it takes less of them to measure. This can provide some default answers as long as you do part of the problem and still emphasizes the connection between size and quantity as desired.