Wednesday, April 18, 2012

Maths: line symmetry

We looked for lines of symmetry in different flat shapes. The red shape above has just one line of symmetry. The greenish shape has two lines of symmetry. Sometimes it is easier to see lines of symmetry if we rotate the book so that the line is vertical.


The dark blue shape has just one line of symmetry, from top to bottom. The light blue triangle does not have any lines of symmetry.


The orange shape has one line of symmetry. The brown shape does not have any lines of symmetry. Never try to rush when you are looking for lines of symmetry. It is easy to get the wrong answer. Take your time and think carefully. Turn the book around, all ways, to see if you can find a line of symmetry. Sometimes there is no line of symmetry to be found.

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