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Students share strategies in a class discussion.
The more that we share strategies the more that the children get to know others' strategies and eventually that strategy becomes their own. A child who was continually counting cubes as a strategy may then learn someone else's strategy which might be using multiples of 10 or counting backwards if they're still in the counting stage. I feel that by sharing strategies in the whole group that children learn from each other. They used to ask me, do I borrow here, do I carry now, and I don't hear that any more because it's their own way, and they're thinking of numbers as a whole. To them it's meaningful.