67 NEW FORMS AND SOLIDS IMPROVED. FOK OBJECT TEACHmG. EACH FORM IS STAMPED WITH ITS NUMBER IN THE LIST. … 22 23 24 25 26 27 28 29 30 42 43 44 This set of forms embraces the common surfaces and solids which are found in elementary geometry, together with a simple illustration of an- gles. As shown ill the above cut, there are twenty-three solids, seventeen surfaces and three angles, the latter being…
Schools -- Furniture, equipment, etc. · Teaching Aids and devices
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