Pentagon Tilings of the Plane

 These irregular pentagon tilings of the plane are created by students in Mathematics Through 3D Printing, Fall 2020. Each is a member of a distinct class of pentagon tilings. The history of pentagon tilings began in 1918 when the first 5 classes were discovered. The 15th class was found in 2015. In 2017 when it was shown that there are only 15 distinct classes, all of which are known.