A tessellation is the name given to a pattern of repeating, interlocking shapes.  The shapes are repeated indefinitely without gaps or overlaps.  If the shape is a polygon, the tessellation may be referred to as a tiling.
 

STUDENT CREATED TESSELLATIONS:

Geometric figures tessellate:  equilateral triangles, parallelograms, rhombuses, rectangles, squares, hexagons.

Ask students to create their own personal tessellation using a geometric shape.  Students must be ready to describe what transformations occurred in their creations.  Tessellations can be hand-drawn or produced with dynamic software.  If the diagram is hand-drawn, have students create a template of the shape being used, so that the repetitions are congruent shapes.
 

 

What geometric transformation(s) occurs in this tessellation?

What geometric transformation(s) occurs in this tessellation?


To create a more exciting tessellation, start with a geometric shape and cut out any shape.  Translate the cut-out shape vertically to the top of the geometric shape to form a new shape that will tessellate.



Start with a geometric shape.


Cut out and translate vertically.




THE WORK OF M. C. ESCHER:

Some of the most famous tessellations were created by artist M. C. Escher.  Escher's works are wonderful examples of transformations.  Reflections, translations, dilations and rotations are abundant in Escher's art work.

Escher's works appear in countless mathematical textbooks, while posters of the famous prints adorn classrooms.  To see the works of M. C. Escher, visit these sites:

http://gauss.technion.ac.il/~rl/M.C.Escher/

http://www.worldofescher.com

Show students several of  M. C. Escher's works.  Ask students to describe what transformations are occurring in the pictures.