object on this sheet is to have the pupil appreciate the value of verticals and horizontal lines, lines of unequal length; also, to teach comparison of length and spacing.
In sheet No. 2 we begin with left oblique lines of equal strength and length, these to be connected at the bottom with
Group I.—OUTLINES IN SLOYD WOOD WORK FOR MATHEMATICAL DEFECTIVES
right oblique lines of the same sparing and length as the left oblique lines. Next, a dotted vertical line is dropped to pass through the intersection of the extreme right of the left and right obliques; then, with equal space from this vertical is drawn a light right oblique, the same to the bottom by a left oblique line; then paralleled thereto is drawn the same number of right and left oblique lines in pairs, alternating with one of light and heavy strength.
From these suggestive oblique forms are made, next, a square formed by dotted lines, and this space filled with right and left oblique lines to form little squares. Next, right and left oblique lines are drawn to form squares joining one another on their diagonals, forming suggestive border decorations.
