We are loving the cuisennaire rods because it had basically eliminated this 1,2,3,4,5... Counting stuff over and over a million times. I am seeing that they are understanding the value of the color/size of the rod and when rods are put together they are able to see that it is the same size as another rod that it equal. Clear as mud huh. I'm sure someone else could do a much better job of explaining but say they have two light green rods together and they know that they each equal three they then are able to see that it is the same size as a 6 rod and then make the connection 2 light greens/ 2 threes EQUALS one dark green/ 6 rod :D
Go to education unboxed and watch her videos...pretty awesome stuff.