Interactive star
Question 1:
Make a list of figures you find interesting or special, and try to explain what is special about them.
Suggestion: you don't have to draw all the figures, just write down the minutes on the circle.
A five pointed star like this is called a 'pentagram'.
Question 2:
How would you make such a pentagram?
A lot of figures have crossed lines. In a pentagram you can clearly see this, but there are also figures without these crossings. Here you can see some.
Question 3:
How can you make a figure without crossing lines?
You can also often see a hole forming in the center of the figure. Sometimes it's big and sometimes small.
Question 4:
When do you see a big hole and when is it small?
Try '15 minutes' and '45 minutes'. This will give you the same result. Try to make this work for other figures.
Question 5:
Please write down how you can always find two ways to make the same figure.