This activity explores 2D shapes, angles and symmetries in the context of flag designs, and is designed to be accessible to primary pupils at Key Stage 2.
Detailed teachers' notes for this activity are available on our NRICH website.
During an Olympic Games many national flags are on display.
Here's a chance to investigate some of them.
Pick a flag and investigate some of the following:-
What shapes can you see in it? Can you describe them and their angles?
Does the flag have any lines of reflective symmetry, if so how many lines?
Can you find any pairs of parallel lines? If so mark them on your flag.
Are there any lines perpendicular to one another?
Can you find a way to classify the shapes in your flag?
Now try with another flag.
If you're finding hard to get started, try looking at this hint.
Detailed teachers' notes for this activity are available on our NRICH website, where you can also find thousands more mathematical resources including problems, investigations and games for all ages from 5 to 19..