Mathematical construction, informal number work for busy hands; grades one and two (1911)
Laffin, Nora Louise, b. 1878 · Chicago : A. Flanagan Company · leaf 37
1 to 4 and 1 to 3.) Play the square is the top of a desk. Compare cost of varnishing to another childs square justthe same size. When folded on a diagonal, play that one triangle thusformed is a tile of the school vestibule floor. Compare costof this with opposite triangla Teacher holds her paperso… … FOLDING 31 If B is one tile opposite surfaceis 4 tiles. If B costs a dime opposite sur-face costs 4 dimes, etc. Fold point C to E. Result:Fig. 2. F is a whole surface, so is G;compare F to G. Relation 1 to 2.
Manual training · Paper work
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