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HARRIET FRIEDSTEIN Monrce High School Rochester. NY 14607
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Understanding the Periodic Table-An Puzzle FORMAT: CAT NO: PRICE: SUPPLIER:
Analogy
4 sets of 24 cardboard puzzle pieces 477 $24.95 Huhbard 1946 Raymond Northhrook, 1L 60062
A very interesting kit has been produced by Hubhard and a t $24.95 it is a good investment. A few years ago, I tried preparing something similar to this, but it was produced on the Ditto machine and was not durable, and I must admit not as colorful as this kit. The kit includes four puzzles which are exactly alike. Each puzzle has rectangular cardboard pieces consisting of a decimal number, an integer number, a spectral
color, a set of side notches, a set of holes (from one to three), and a set of stars (see Fieure). - these . The obiect is to arrange twenty-four rectangles into a "periodic table." I t is really a chdeneine .. ..exercise for students to develoo an understanding uf the llendeleyev periodic rahle otelements. (lsinr thcse six variables. the students are able to devplop severa~confi~urations. his activity requires hetween 30 m
