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 . etting thefinger into the cube already completely closed. Thething is, however, very simple if we use a band of stiffpaper, a paper cutter or a knife. This cube, if well constructed, is very strong (Fig. 77). Its construction very much resembles some of themethods used in carpentry. All of the elements are metagain, and the thought or calculations necessary to makethe tenons, cuts or mortises, come together exactly in thesame way. It will be noticed that of the
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 . etting thefinger into the cube already completely closed. Thething is, however, very simple if we use a band of stiffpaper, a paper cutter or a knife. This cube, if well constructed, is very strong (Fig. 77). Its construction very much resembles some of themethods used in carpentry. All of the elements are metagain, and the thought or calculations necessary to makethe tenons, cuts or mortises, come together exactly in thesame way. It will be noticed that of the six faces of the precedingconstruction, the first four are cut in a different way fromthe last two. If we use six faces cut in the same way as indicated inFig. 76, the construction of the cube represents a higherdegree of skill and a greater intellectual effort. Thedanger to be avoided in the arrangement of the differentpieces, is in the junction of the sides with similar cuts. The applications which result from the sixth construc-tion of the cube are very numerous, and only a few whichare directly connected with it, are 89
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