Interoperable interactive geometry for Europe
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Review for "Area of a triangle"

Simple calculation

Global comment:

Review filed on 2010/09/27 12:54 by MFioravanti.

The user may change base and height of the triangle by dragging points. Dimensions must be obtained visually from the grid. The students see that the area changes, but they are not able to see what kind of relation is there between the magnitudes and the area.
This review is done without a trial in classroom.

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