C: Learning to use part–whole thinking to solve problems


Target group: Students in years 1–4

Focusing on:

  • part–whole thinking
  • understanding place value up to 100
  • recalling the basic facts required for early additive strategies


Teacher observation over a range of activities

The student may be able to confidently count on or back to solve addition and subtraction problems but cannot use part–whole strategies.

Possible barriers to the student’s progress

  1. Limited part–whole thinking
  2. Limited knowledge of groupings with ten and with the number of tens in decades
  3. Limited recall of addition and subtraction basic facts

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