Mathematical construction, informal number work for busy hands; grades one and two . 1 ? )* B H F DP>3 * Measuring with 1-inch ruler from upperand lower left and right corners and drawingline with 10-inch ruler, draw a-h, c-d. (Fig. 1.) Measure e-f with 3-inch ruler. Measure g-h with 2-inch ruler. Fold so that lower touches upper edge andlines can be seen. Cut on each line from foldededge, until half an inch from top is each of these parts except the middleone into two equal parts. Collect these rulers and usea different set for the otherpaper. Give children 346810 rulers. Th
Mathematical construction, informal number work for busy hands; grades one and two . 1 ? )* B H F DP>3 * Measuring with 1-inch ruler from upperand lower left and right corners and drawingline with 10-inch ruler, draw a-h, c-d. (Fig. 1.) Measure e-f with 3-inch ruler. Measure g-h with 2-inch ruler. Fold so that lower touches upper edge andlines can be seen. Cut on each line from foldededge, until half an inch from top is each of these parts except the middleone into two equal parts. Collect these rulers and usea different set for the otherpaper. Give children 346810 rulers. They see: 2 2= 4 6 2 2 2 3 2= 6 4 8 4 2 4 2= 8 — — — — 5 2=10 10 10 6 4 2 4= 8 Ff^-a Draw lines indicated in Fig. 2, using rulers 2, 4, 6,8. Cut on these lines. Divide each one of the oblongs into4 equal pieces, cutting lengthwise, free-hand. Weave. With 7-inch ruler measure down on long edges and foldon line. See Fig. 3. 76 MATHEMATICAL CONSTEUCTION Place and paste ends of strips under border after mathas been folded on this 7-inch line. Punch holes and lace Tf^.i LESSON VIICircular Woven Basket Material: An oblong llx2; an oblong llx4, con-trasting colors; a 3|-inch square for base. Eulers: 1256910. New combinations of numbers are seen when paperllx2 is given to children and they are told to estimatethe length of it. Xot having the 11-inch ruler in theirhands there is no harm in saying: This paper is 11 incheslong. Find out what rulers put together equal 11 inches, thelength of the paper. They will see:10 5 916 2 11 11 H MEASUEIXG AND WEAVING 77 In addition to these combinations in ruler comparisons,they get: 5 9 51 1 5 rx 5 fc* gt& 6 10 10 Bisect this oblong (llx2) lengthwise, using 1-inchruler to make marks and 10-inch ruler to draw line. Foldso that short edges touch and line is visible. Cut on linefrom folded edge for a short distance. Xow divide each partinto 3 equal parts. Cut all lines up until a distance fromthe top is reached equal to the width of
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherchicagoaflanaganco
