by Jaren F.
This tessellation shows translational (slide) symmetry.
The "tile" (tile = repeating shape) is very neatly, precisely reproduced and fits with all the other tiles perfectly, without gaps or overlaps. That's what a proper tessellation does.
Unlike the other tessellations done by the Zaneis class of 2013, this one is abstract. The pattern is regular, but unlike M. C. Escher tessellations it uses a theme of arbitrary (but pleasing-to-the-eye) geometric shapes. It's an appreciation of the math and geometry that awes us in an abstract tessellation, not the clever resemblance to real-world objects, animals, or people.
The Alhambra buildings in Spain contain hundreds of awe-inspiring abstract tessellations. M. C. Escher, the father of animal- and people-shaped tessellations, was inspired by the tessellations he saw in the Alhambra. Read more about Escher and the Alhambra by clicking here.