Construction work in cardboard and paper for grades I to IV, without the use of tools; with a course in woodwork for the fifth grade (1900)
Smith, Robert Mackie, comp · Chicago, A. Flanagan Co · leaf 63
thout tak-ing the box to pieces. Angular Cube.—Cut out a square on each of the sixfaces. By passing threads through from the one angle tothe other angle opposite, many geometrical definitions,such as center, diagonal, etc., may be clearly illustrated(Fig. 12). Have pupils combine the cubes in as…
Paper work
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Hierinn sind begriffen vier Bucher von menschlicher Proportion durch Albrechten Durer von Nurerberg [sic.] erfunden und beschuben zu nutz allen denen so zu diser kunst lieb tragen (1528)](https://img.insideoutlibrary.com/img/200/ia-hierinnsindbegri00dure-224-242.webp)
