A classroom teacher mention to me that one of the intervention students is having trouble with doing subtraction with regrouping. The student is in the second grade.
Do I work on teaching the algorithim that they usually see where the numbers are stacked on top of one another, or should I focus on the quanity of the number and use other strategies? I guess I am asking, at what point if any, do you move on to the procedure of subtraction? I am just not entirely sure where to start with teaching subtraction with regrouping.
Owsley County Elementary