“For a group of students who are stuck on counting back for subtraction.....”
To subtract, advanced counters count back one by one, often making errors related to where to start the backward count. Therefore, when teachers model subtraction using tens frames, it is important that they encourage their students to physically scoop and remove groups of counters so that they will better develop the partitioning concept.
Domain: Subtraction
Transition: 4 → 5
Barrier: Still counting back to subtract.
Other resources:
Numeracy activities:
- Tens Frames
- "Teen" and "Ty" Numbers
- Tens Frames Again
- Up Over Tens
- Adding in Parts
- Subtraction in Parts
Figure It Out:
- Counting Counts (N2.2, p10)