The tenth gift, stick-laying in primary schools; a practical manual especially for primary-kindergarten teachers .. (1903)
Buckingham, Alice. [from old catalog] · Manistee, Mich., American kindergarten supply house · leaf 14
that if we move the outer end of one stick in the right JLt. j, v as; JL3. angle a little farther from the other it will form the obtuse angle (Fig. 29). Then let the obtuse angle … be formed in all positions, as the acute angles were. A few illustrations are given. (See Figs. 30 to 34). Also lead the children to see that an obtuse angle may be any size from the least bit larger than a right angle to the largest that can be formed. After this study of the angles let them see…
Kindergarten
Internet Archive · The Library of Congress · Public domain (published before 1931). Free to use for anything.
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