by Florence O. Bean - Assistant in Manual Arts - Boston Public Schools
Published by School Arts Publishing Company 1914
First decide on the size of the small squares, remembering
that there are eight in each direction. Also allow for a margin,
outside the squares, which should vary in proportion to the size
of the squares. A single or double border line enclosing the
squares is a desirable addition. (See B, Plate XIV.)
Make working drawings of the foundation, the front covering
of vellum, and the back covering of lining paper. In selecting
vellum for this model, have in mind the application of a color
which is to be used on alternate squares. Either deep red vellum
with alternate squares of black or dull green vellum with
alternate squares of red is a good combination.
Layout and cut all parts, using the card cutter for the news
board, and the scissors for the vellum and the lining paper. As in
previous models, lay foundation on the back of the piece of
vellum, draw around it, and cover with paste the surface
enclosed by the pencil lines. Again place the foundation on the
thoroughly rubbed down, paste laps, being careful to make neat corners. Paste on lining paper and dry under
weight.
During a subsequent lesson, mark out the checkerboard, accurately, with rule and pencil. Only alternate squares
need be colored, and this may be done with water colors, crayon, or pencil. If water colors are chosen, they should
be used with as little water as possible. Before applying the paint to the vellum, the glaze of the surface may be
reduced by rubbing over it the powder which comes from common white chalk. Rub the powder in with the fingers
and lightly brush off what remains. On a separate piece of vellum, practice the application of color before applying it
to the checkerboard, both to test the color itself, and to become somewhat familiar with the best method of
application. After the paint is thoroughly dry, the surface may be cleaned by rubbing carefully with a piece of cloth.
Finish by putting on the outside border line with pencil.
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