CUR: Scenario 1
Scenario: Sharon teaching subtraction Country: UK Grade (student age): Year 4 (age 8-9) Contributed by: Ray Huntley, Brunel University, UK Context – national, curricular, professional, other Subtraction is taught to primary children as being either ‘take-away’ or ‘difference’, with various models and images used to help children understand the processes involved. In terms of finding a difference, the notions of ‘counting back’ or ‘counting on’ are often introduced, and the hundred square can be a useful image to assist with this process. Sharon, a final year undergraduate trainee was reviewing these ideas with her class, starting with subtracting single digits from 10, before going on to discuss other examples which extended the method into subtracting single-digit and two-digit numbers from multiples of 10. Scenario Sharon was teaching a Year 4…