Bisect all edges of the paper.

Exercise No. 10. - Bisect all halves of edges.

(Teach here quadrisecting and opposite points).

Join with lines all opposite points.

(Teach from the model, the number and shape of the faces and the shape it takes when unfolded). The square to the right of the back left square is No. 1, the one in front of 1 is 2, the one to the left of 2 is 3, the one to the right of 2 is 4, the one in front of 2 is 5 and the one in front of 5 is 6. Cut, fold, and sew from the model.