Mathematical construction, informal number work for busy hands; grades one and two (1911)
Laffin, Nora Louise, b. 1878 · Chicago : A. Flanagan Company · leaf 108
h surfaces are rugs with fringe on short edges. (Fig. 1.) If 1 yd. of fringe is on one short edge of Tug B, howmany yds. are on one short edge of rug A ? How many yds. on both short ends of af (23 yds., or6 yds.-inference from former ruler measurement.) How many yds. on both short ends of rug 5? (2… … Make cuts indicated at a, h, c, d. Fold and paste chair as in previouslessons. Make legs and back same designas father and mother bears chairs. Number relations seen: 2 9-| /_9// V is \ of 2 1 1 1 2 2)1 31=3 V is \ of 2, 1 2 3 2 41=4 \ is \ of V 2 3 4 4 22=^ 2 are \ of ^ 4-3 4-2 4-1 LESSON XV…
Manual training · Paper work
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