Mathematical construction, informal number work for busy hands; grades one and two (1911)
Laffin, Nora Louise, b. 1878 · Chicago : A. Flanagan Company · leaf 46
pposite surface)need? (Ans. 3, 2 rolls.) After B is folded to middle fold ask: If one man paintsthis wall in 4 hrs., how long will it take him to paint thisone (opposite surface) ? (Ans. 2, 4 hrs.) Children should keep square prism in school for futurecomparison with the cube which is to be made… … H
Manual training · Paper work
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