NumihanaCount on.
Keep the first quantity in mind and move forward by the second quantity. Each move adds one; you do not need to count the first quantity again.
When this helps
Useful for adding a small amount. Use counters or a number line to keep track of the moves.
A common slip
Count the moves, not the starting number. Adding zero makes no moves.
Worked example
18 + 0 =
Which number do you start from?
Start from the first quantity.
18After 0 forward moves of one, where do you finish?
Each move increases the number by one.
18What is the final answer?
Recombine your working and check it against the original question.
18
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Teaching context
This lesson practises mathematical representations and calculations. The displayed practice uses selected England Year 1 skills; the strategy can also help learners in other years.
Curriculum alignment describes the mathematical skill. It does not mean this is the only required teaching method.
Department for Education: mathematics programmes of study ↗Original method lesson v1.
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