KnoTilesTM and Making Faces
KnoTilesTM - New in 2008!
Everyone is familiar with the utilitarian and decorative uses of knots, but mathematicians study knots as well. KnoTilesTM is a puzzle that serves as an introduction to the mathematics of knots and the symmetry of knot designs. All of the knots through seven crossings can be formed with the set, and the instructions contain over a dozen brain teasers. The puzzle pieces feature photographic rope images, with a second color of rope on some pieces to allow the formation of links (like knots, but with more than one strand). Grades 3-12.
Item 1180, 105 cardboard pieces, packaged in a box. Suggested retail price: $14.95
Making Faces
Making Faces is a unique tessellation puzzle in which a face is formed where four square pieces fit together. There are three different types of pieces, allowing over 1,000 distinct faces. What's more, if a face is viewed upside down, as different rightside-up face is seen!
The puzzle comes with instructions that include several brain teasers plus a game using the pieces. Four reproducible worksheets cover translational and rotational symmetry in tessellations, the mathematics of combinations, and drawing 2-way faces.
Item 1080, 120 cardboard pieces, packaged in a plastic jar. Suggested retail price: $19.95
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