Astronomy This Week: Archive
About the Author
Doug Mack has been teaching elementary school since 1975, and has taught a variety of subjects, including social studies and reading improvement. In 1993, after 8 years teaching in the special education department, he began teaching middle school science, which he hopes to be doing when he retires in 2015.
This column is printed by special arrangement with Doug and the Hometown Journal in Flora, IL.

