Samuel Glass is the collective name of a biological community of about 1x10¹⁴ eukaryotic and prokaryotic cells living on the third planet from a G2V star located at about 7.62x10³ parsecs from the center of the Milky Way Galaxy in its Orion Arm. Formed since Julian Date 2438786.05139 and currently at coordinates 29.50979 -098.39031 and at 232 meters above mean sea level, this community of cells is composed mainly of O (65% by mass), C (18%), H (10%), N (3%), Ca (1.5%), and P (1.2%) and can be best detected by electromagnetic radiation in the 400x10¹² to 790x10¹² hertz range.

Oh, and he has a beard.

Mr. Glass has been a teacher for over twelve years, and is currently the Science Instructional Dean at Roosevelt High School. He is certified to teach science as a secondary school teacher and has degrees in multidisciplinary science, chemistry, and assorted certificates. He brings to the classroom his experiences as a freelance Web designer, a Texas Master Naturalist, a laboratory research assistant, and a corporate manager, where he spent just as much time listening to young people and their concerns as he did with performing administrative duties. Mr. Glass was also named Time magazine's 2006 Person of the Year.

He really enjoys teaching, learning, and exploring our natural world as well as books, music, film, photography, and a certain Gallifreyan from the constellation Kasterborous.

After growing up in a military family and living around the world, Mr. Glass moved back to San Antonio and to NEISD, the place where he went to high school. He is really, really lucky to be married to his best friend of over twenty years. Together with their young son, they are voluntary participants in a long-term experimental ecosystem consisting of three humans (Homo sapiens), three cats (Felis silvestris catus), eight fish (Carassius auratus, Paracheirodon innesi, Pseudacanthicus spinosus, and Xiphophorus helleri), eight shrimp (Neocaridina davidi), two mud fiddler crabs (Uca pugnax), thirty-two plants (mostly Lamiaceae), and two unidentified species of snail.