Hi Lisa,

I would have them look at number lines and number grids and place their fingers on the number. This makes them focus. Also, have them count within the range of numbers in their heads so they can think about what logically comes before or after. If you practice with number puzzles, where they have number grids with blank spaces that they have to fill in, this helps as well. See examples on the hundreds grid post.

Happy Mathing,

Dr. Nicki

First of all, the rationale for using number lines from the ThinkMath curriculum is a resource which all teachers should read. We use the ThinkMath curriculum at Nathan Hale in New Haven. It took a couple of years for teachers to get comfortable with the approach, but it is working for us. As with all math programs, the teachers pull from many resources to design lessons. Thank you for the plentiful number line resources. I have a question. How can I teach what number comes before or after a bigger number, such as ____ 246 ______ with a number line? It really gets tricky when the numbers are _____,190,_____ or _____, _____ 131. I know I can display parts of a number line. I just thought you might have a trick. The students automatically want to count by tens. Why?? Wonderful “stuff”. ]]>