Addresses CC 3.NF.3D using cuisenaire rods to have students look at the size of the whole when comparing fractions. The whole is telling students which rod to use. They use the other rods to cut the whole into the needed parts. Students are using the rods to see that when the same size whole is cut into more parts (larger denominator) the size of the parts are becoming smaller in size. For example #1 has students using the purple rod (4) to compare 3/4 and 1/4. They use the white rod (1) to see that they will get more with 3/4 than 1/4. As they work down the page the denominators are changing size but the whole is remaining the same.