Tag Archives: math thinking activity

The house of quadrilaterals

In Investigating an Ordering of Quadrilaterals published in ZDM, Gunter Graumann shared a good activity for developing students mathematical thinking. The activity is about ordering quadrilaterals based on its characteristics. He gave the following list of different aspects of quadrilaterals as possible basis for investigation. Sides with equal length (two neighbouring or two opposite or three or four sides) Sum of the length… Read More »

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