Here's a relatively concrete activity to teach the large numbers representing evolutionary deep time.

In spite of the importance of geological time in evolutionary biology, misconceptions about historical events in the history of life on Earth are common. Glenn (1990) has documented a decline from 1960 to 1989 in the amount of space devoted to the history of life in high school earth science textbooks, but we are aware of no similar study in…

Describes information learned about Mars from past Mariner probes. Discusses future space probes that are expected. (RH)

Discusses the succession of ecological and geological structures as exhibited at Glacier National Park, Montana. Topics discussed include glaciers, the geological history of Glacier National Park, glaciation of the Rocky Mountains, paleoecology, the vegetational history of the Northwestern United States, and glaciation and the modern vegetation.…

Presents examples using hypothetico-deductive thinking to better teach and understand biology, geology, physics, and chemistry. The examples show that hypothetico-deductive thinking is not new to science as it can be found in research from the Middle Ages. (SAH)

Demonstrates the use of geological concepts and principles as an effective approach to teaching evolution and in turn the nature of science and the scientific method in the classroom. This approach to teaching makes it easier for students to understand the basic concepts of evolution which is really important in order to understand nature as it…

Describes scientific research on an Earthwatch expedition to study Arenal, one of the world's most active volcanoes, in north central Costa Rica. The purpose of the two-week project was to monitor and understand the past and ongoing development of a small, geologically young, highly active stratovolcano in a tropical, high-rainfall environment.…

The first of a three-part article in which the author discusses some past events which provide insight into why the theory of evolution gradually displaced the doctrine of special creation. (PEB)

Demonstrates the magnitude of an extinction event by using a simulation to illustrate the massive nature of the loss of a family and the number of species that perish to achieve that result. (RT)

Mysteries of the biological past that paleontologists are trying to solve are discussed. Topics include first seeds, fossils and computers, packrat middens, charcoal clues, soft parts, Burgess shale, halkieriids, toe count, whales with feet, long necks, and changing functions. (KR)

A quantitative laboratory exercise based upon the procedures copper manufacturers employ to increase copper production is described. The role of chemoautotrophic microorganisms in biogeologic process is emphasized. Safety considerations when working with bacteria are included. (KR)

Discusses the long running debate on teaching evolution in public schools. Recommends using the 5E teaching cycle of engage, explore, explain, elaborate, and evaluate to show that scientific concepts and theories can be fundamental. (Contains 20 references.) (YDS)

An assessment of the water quality of the Colorado River in the Grand Canyon was made, using the following parameters: dissolved oxygen, water temperature, hydrogen ion concentration, total dissolved solids, turbidity, and ammonium/nitrogen levels. These parameters were used to provide some clue as to the "wellness" and stability of the…

Describes what kinds of fossils work well in student laboratory activities, and where and how to acquire these fossils at reasonable prices. (WRM)