In order to do this we must take cardboard or heavy paper, draw a circle with scissors and cut curly here is a carved circle as in the photo.
If curved scissors not, must be something to mark such a pattern, for example, a line dividing the entire circumference into equal parts, and then draw a semicircle and simple cut with scissors.
But it is important to make a circle with some “good” number of semicircles. This means that the number of half-circles must be divisible by 2 or 3 or Ha4 or na5 or 6 etc. This is to ensure that would divide the circle into sectors with an equal amount of split times or to wind the thread properly.
I turned round with 32 semicircles. 32 divided by 4, you get 8. So we have a range of 4 to 8 sectors semicircles in each.
When everything is marked out, we take a string and fasten it, for example, an adhesive tape on the reverse side in the middle of the circle.
Then stretch the thread on the wrong side to the 2nd semi-circle in the sector, and I pull up to 2nd in the sector II (3-3, 4-4, 5-5, 6-6, 7-7, 8-8).
So first 2 sectors.
and then the whole circle (another 2 sectors).