Adding and Subtracting Using Open Number Lines

Adding and Subtracting Using Open Number Lines
 
Teaching addition and subtraction on open number lines can be tricky, especially communicating to parents.  Here is a great freebie that might help you out. 
 
http://3rdgradegrapevine.blogspot.com/2013/09/its-hard-to-believe-but-weve-already.html
 
 

3rd Grade Grapevine
 
Written by