Today I'm sending home some homework that shows kids how to multiply on a Number Line. The Math Learning Center (Bridges- our math curriculum) has a great app for using number lines. It's free and the kids and I used it today.
Here's the link: http://www.mathlearningcenter.org/resources/families
Just go to the free apps, it'll lead you to the app store.
There's a web version also.
I know that many of you don't have tablets, but I'm throwing this out, just in case.
Have fun!
Valerie