Basic problems

Initiation to the bar diagram

Initiation to "Plus-Minus" machine

States composition with bar diagrams

... with marbles

... with liquids

... with decimal numbering dominoes

...with balances

State transformation with bar diagrams

... with marbles

... with liquids

... with decimal numbering dominoes

...with balances

State comparison with bar diagrams

... with marbles

... with liquids

... with decimal numbering dominoes

...with Roberval balance

Transformations compositions with bar Diagrams

... with marbles

... with liquids

... with decimal numbering dominoes

Training, evaluation with bar diagrams

Initiation to the multiplicative bar diagram

Introduction to the Cartesian diagram

Multiplication, division with diagrams