the teachershould frequently require them to submit their inde-pendent work for inspection, in order that the faultsmay be pointed out and corrected. A Curve. A curved I hie is a line which changes its directionat every ijoint. Curved lines are of difterentkinds. A Simple Cl^rve. — A simplecurve… … 55 56 TEACHERS MANUAL.
Drawing -- Study and teaching
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