Second Grade
Open Number Lines Explained
Open Number Lines Explained
"If Not the Algorithm, Then What?" https://www.theclassroomkey.com/2014/07/open-number-lines-explained.html
"If Not the Algorithm, Then What?" https://www.theclassroomkey.com/2014/07/open-number-lines-explained.html
Number Bonds to 10 and Subtraction Word Problem
Number Bonds to 10 and Subtraction Word Problem