(The Individual Part)
In the didactic material there are two sloping wooden boards, on each of which stand five square metal frames, colored pink. In each of these is inserted a blue geometrical figure similar to the geometrical insets and provided with a small button for a handle. With this material we use a box of ten colored pencils and a little book of 87 designs which I have prepared after five years’ experience of observing the children. I have chosen and graduated the designs according to the use which the children made of them.
The two sloping boards are set side by side, and on them are placed ten complete “insets,” that is to say, the frames with the geometrical figures. (Fig. 28.) The child is given a sheet of white paper and the box of ten colored pencils. He will then choose one of the ten metal insets, which are arranged in an attractive line at a certain distance from him. The child is taught the following process:
Fig. 28.––Sloping Boards to Display Set of Metal Insets.
He lays the frame of the iron inset on the sheet of paper, and, holding it down firmly with one hand, he follows with a colored pencil the interior outline which describes a geometrical figure. Then he lifts the square frame, and finds drawn upon the paper an enclosed geometrical form, a triangle, a circle, a hexagon, etc. The child has not actually performed a new exercise, because he had already performed all these movements when he touched the wooden plane insets. The only new feature of the exercise is that he follows the outlines no longer directly with his finger, but 88 through the medium of a pencil. That is, he draws, he leaves a trace of his movement.
The child finds this exercise easy and most interesting, and, as soon as he has succeeded in making the first outline, he places above it the piece of blue metal corresponding to it. This is an exercise exactly similar to that which he performed when he placed the wooden geometrical figures upon the cards of the third series, where the figures are only contained by a simple line.
This time, however, when the action of placing the form upon the outline is performed, the child takes another colored pencil and draws the outline of the blue metal figure.
When he raises it, if the drawing is well done, he finds upon the paper a geometrical figure contained by two outlines in colors, and, if the colors have been well chosen, the result is very attractive, and the child, who has already had a considerable education of the chromatic sense is keenly interested in it.