Help your students understand how to model and build numbers to 20.
This flipchart is a digital "rekenrek" created from the CCGPS framework plans. A rekenrek is similar to an abacus but with a few key conceptual differences:
*The beads start on the right so that students can "read" their numbers from left to right.
*It is based on 5's AND 10's
*It only has 2 rows of beads to create numbers with both rows encouraged for creating numbers.
There are MANY wonderful rekenrek activities at http://www.k-5mathteachingresources.com/Rekenrek.html
I am just beginning to use this tool in my classroom. I'd love to hear feedback and ideas about how you use it in yours. I hope this digital tool helps with modeling for your students!