From the center of the square inscribe a 7" circle. Draw a right and left diameter to the circle. Open the dividers equal to the radius of the circle.

Exercise No. 13. - Place the dividers at the right end of diameter and with arcs cut the circumference above and below. Draw corresponding arcs from left end of diameter, dividing the circumference into six equal parts. Join all adjacent points, making a hexagon within the circle. Join all opposite points, dividing the hexagon into six equilateral triangles. The back triangle is No. 1, back right No. 2, front right No. 3, front No. 4, front left No. 5, and back left No. 6. Unfold the model and have the pupils see the construction. Cut, fold, and sew, leaving loop for hanging.