I've worked with a lot of K-2 kids and it's pretty common to see kids who understand the base ten system, but have trouble comparing numbers with scrambled digits. The more numbers you add, the more complicated it gets. (E.g. Order 5,123; 5,321; 2,315; 5,213) I expect my NT 2nd graders to be able to do problems like this example, but it can be hard for the eye to move back and forth. We often use the strategy of "stacking" (placing the numbers on top of each other so that the place values are lined up), which makes it easier to see the differences. Most of my kids compare this to alphabetical order - you start on the left and work toward the right.
Maybe stacking would help her see this difference?
Last edited by KathrynH; 05/30/14 08:52 AM.
