With using shapes to form patterns, the children also learnt to rotate the shapes to fit together to form a pattern.
In class, the question that was brought forward to us was using different number of shapes to make a rectangle. Through this experience, I learnt that we can use different amount and types of shapes to make a rectangle, be it using 5 shapes or 7 shapes but the conclusion we came upon was still a rectangle.
I had introduced this type of tangram activity to my class of children.
But I would think of printing templates like these for them to explore. I believe they will be much more creative through this activity.