Illustrative Mathematics
Illustrative Mathematics: Converting Fractions of a Unit Into a Smaller Unit
Note that in each of these problems we are given a set of a specified size and a specified number of subsets into which it is to be divided. The questions ask the student to find out the size of each of the subsets. Students are not...
Illustrative Mathematics
Illustrative Mathematics: 5.md Minutes and Days
What time was it 2011 minutes after the beginning of January 1, 2011? This task requires division of multi-digit numbers in the context of changing units and so illustrates 5.NBT.6 and 5.MD.1.