Mathematical construction, informal number work for busy hands; grades one and two (1911)
Laffin, Nora Louise, b. 1878 · Chicago : A. Flanagan Company · leaf 41
ongs can be lace curtains for the dollhouse. Question about length or cost of lace for the curtains.Some curtains having lace on 2 edges, others on 3 edges. Let triangle F (Fig. 4) be a dolls shawl. Let oppositesurface be a piece of cloth. Ask how many shawls can be cutfrom it. Let small square… … A=2 of B.=8 of C.=2 of I. A=sum of D+C.=sum of H+3 Cs=sum of 1+4 Cs. FOLDING A=sum of G+2 Cs. D=B+3 Cs =sum of D+E+F. =7 Cs. =sum of G+C+E+F. G=6 Cs. C=i of B. =1+2 Cs. =i of I. H=I+C. =siim of E+F. =5 Cs. B=sum of C+E+F. 1=4 Cs. =1 of A. F=3 Es. =1. =C-E. 35 LESSOX VIII
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