Escher style Geometry Art from J. R. Masterman's 9th grade geometry class

pyramid motif first-time tessellation by a child

PYRAMID TESSELLATION by Wyatt

This art, like the three which appear before it on the gallery page, is a translational (slide) tessellation.

The ones that appear before Pyramid are clearly Escher style, because they aim to show the outlines of animals or people. Wyatt's pyramid tessellation probably best fits the definition of a geometric / abstract / alhambra type of tessellation. The motif we see is called "darts"-- arrow head shapes. Abstract tessellations often are made up of combinations of "kites" (diamond shapes) and "darts" (arrows).