After examining the arrangements of curtains at the windows the pupils may be led to decide that B and D continue to be the most pleasing. "Since we are now agreed that in B and D the tie-backs divide the curtains so that the spaces are most pleasing, would you like to determine just where the division comes in each of the curtains?" Some of the members of the class will be eager to take the measurements and report on them. They will find that in-- [Sidenote: Class determines best division of space] A the division is exactly in the center of the length. B the division comes at a point between one-half and two-thirds of the length. C the division comes at a point more than three-quarters of the length. D the division comes at a point between one-half and two-thirds of the length. At this point it will be well to direct the attention of the class to the possibility of space division in other places. "Do you think that there are spaces, other than windows, which could be satisfactorily divided according to the same measurements?" Members of the class may suggest panels in doors, divisions in dress, and the like. "Marie is making a plain one-piece dress. The narrow belt is to be of the same material. Where would be the best place for her to place the belt?" Try placing a belt on a plain one-piece dress or provide three tracings of such a dress with the belt placed as follows: In one the belt divides the dress in two equal parts. In the second the belt is placed so the skirt is a little longer than the waist. In the third the belt is placed at normal waistline. (With a long skirt this makes the skirt very much longer than the waist.) Measurements may again be taken and compared with the divisions of the window. The class may be led to decide that a plain dress is divided best by a belt which comes some place a little above or below the center of the total length. [Sidenote: Class develops statement of principle for good proportion] "If you wanted to help someone to divide a space so the resulting parts would be pleasing, what directions would you now give them?" Each member of the class may be asked to write out a statement of directions. Some of these may be put on the blackboard and the class members given an opportunity to choose the one which they think would be most helpful in obtaining space division. The final statement should bring out the following: _When a space is to be divided the result is most pleasing if the dividing line falls at a point between one-half and two-thirds of the length divided._