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1 Example: Addition • Addition Strategies • Retrieval or Memorization



• Count-on: to solve 7+2, the child counts 7,8,9 • Count-all: to solve 7+2, the child counts 1,2,3,4,5,6,7,8,9 • Strategies differ in solution time, and accuracy • Children switch between these strategies. • 99 % of students use more than one strategy. • The mixture of strategies is different for different grade levels

Topics: Example, Mental Rotation Targets Identify ALL solutions Mental rotation ✔ Analytic strategy ✘
Year: 2012
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