I'm looking for some good freeware so I can write math equations and the like. Something simple that I can use immediately -- don't have much time to learn LaTex right now. (So far I've found ...

Using a Rekenrek, work with numbers 11-19, and write equations. Join Mrs. Gray for a Numeracy Talk with Dotson seeing the double ten frame but building what we saw using a Rekenrek. We work with ...