This ActivInspire flipchart focus on subtracting a Mixed Number from a Whole Number where a student would need to regroup in order to subtract.
How to use:
1. Drag the circle with blue pieces to Garbage to reveal
equivalent fraction with the common denominator.
2. Drag the yellow circle with the black dot to Garbage to
represent regrouping a whole for fraction parts.
3. Drag blue fraction pieces and yellow circles to Garbage
can to model subtraction.
I have used the Dual User tool to have one student move pieces and another (or myself) to model the traditional algorithm.