Worksheets for Informal Geometry
Our worksheets can be obtained in Postscript (PS) or Portable
Document File (PDF).
One of the best introductions to GSP I know of is the one by Mike
Riedy. All the labs below are just sligthly altered versions of his.
You should take a look at the
an Intro to Geometer's
(PDF) (A version I use in a Math. Ed.
Another Intro to GSP (PS)
(PDF) (This version was used in a
Creating Tessellations using translations, rotations and
An introduction to tessellations
More on tesselations (PS)
Tessellation Techniques for some special cases.
(PDF) Using the "Totally
Tessellated" website explore some methods for creating tessellations.
(PDF) A more generalized worksheet
exploring triominoes, tetrominoes and pentominoes.
Tetrominoes en Polynominoes
(PDF) Explore tetrominoes and
polynominoes. Create tessellations using some of these shapes
Regular and semi-regular
Explore regular tessellations (there are 3) and semi-regular
tessellations (there are 8). (Refers to pages in O'Daffer and
I also have a slightly shorter version
(PDF) (less detail, more of an
intro to regular and semiregular tessellations. I combined this lab
with a lecture in which I proved that there are only three regular
Tesselating a hexagon (PS)
(PDF) How many ways can we tessellate a
hexagon? You should use pattern blocks for this exercise.
Polygons and Symmetry
(PDF) Explore the
website "Totally tessellated and learn about polygons and symmetry.
Regular Polygons and Tessellations
(PDF) Explore the
website "Totally tessellated and learn about regular polygons and
Triangles and Quadrilaterals
given certain triangles, what type of quadrilaterals can we form with
Finding the center of a circle (a GSP exercise)
Counting Squares (PS)
(PDF) How many squares toatl can you
find in a square, divided in nxn squares
Pricing a patio (PS)
One of our faculty has compiled a useful list of links which can