Augsburg, De Resco Leo, b. 1859 · Boston, New York, Educational Pub. Co · leaf 34
object or place. Spheres are thebest for this work. Use the model or object when teaching; useit persistently. The model is the principle source of the idea —of the mental image which the pupil reproduces. The progress ofthe class will be more rapid, more satisfactory, and more completewhen the… … CHAPTER II. The Box as a Type Form. It is the aim in this and tlie following chapter to showmethods of teaching the })rinciple of representing distance mvay,or the tJtird dimension, on a flat surface. LyE It^tL
Drawing
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