How are number strings designed? Typically, people tend to describe number strings as having the following structure Entry problem Helper … More
Category: addition strings
On the rug with Angela
It’s late in the school year and I’m sitting on the edge of the rug in Angela Fiorito’s 1st grade … More
Decimal Addition: The Wonders of Friendly Numbers & Compensation
The following post was written by Belinda Paine, an eighth grade special education teacher and one of my credential students. … More
True False and Fill in the Blank Number Strings for Second Grade
A teacher recently handed me a second grade interim assessment with some true or false and fill in the blank … More
Developing Algebra
This string was developed by our colleague Bill Jacob, University of California, Santa Barbara, who is, among other things, an … More
From additive to multiplicative thinking
A few weeks ago our colleague and collaborator Pam Weber Harris led a really interesting numeracy workshop at Math in … More