This is a web version of a teacher's workshop presented at Bridges 2004

Appeared in: Bridges for Teachers, Teachers for Bridges, 2004 Workshop Book,

Mara Alagic and Reza Sarhangi eds., pp. 31-42.





“Slide-Together” Geometric Paper Constructions



George W. Hart



Computer Science Dept.

Stony Brook University



george@georgehart.com

http://www.georgehart.com





Abstract

Computer Science Dept.Stony Brook University

Seven paper construction projects provide students with experience exploring properties and relationships of two-dimensional and three-dimensional geometric figures.





















“Slide-togethers” based on squares, triangles, pentagons, and decagons



Introduction













“Slide-togethers” based on hexagons, decagrams, and pentagrams



Constructing the 30-Squares “Slide-Together”



the squares are planar; you will bend them temporarily during assembly but they should end up flat; when two squares are slid completely into each other, two edges of one square intersect two edges of the other (one crossing occurs at each end of the slit); and each square will join to four squares of the four other colors, e.g., a blue square never touches another blue square.

Constructing the other six “slide-togethers”



Classroom ideas from Middle Grades to Architectural Design



References

