Info: problem solving
Basic additive problems
Basic multiplicative problems
Initiation to the additive bar diagram
Initiation to "Plus-Minus" machine
Composition problems with bar diagrams
... with marbles
... with liquids
... with decimal numbering dominoes
...with balances
Transformation problems with bar diagrams
Comparison problems with bar diagrams
...with Roberval balance
Training, evaluation with additive bar diagrams
Initiation to the multiplicative bar diagram
Introduction to the Cartesian diagram
Multiplication, division with diagrams
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