Dr. Larry Krumenaker 

@classroomastronomer
Astronomer, educator, and longtime science and astronomy writer, Dr. Krumenaker has worked as a journalist and educator in the USA, Germany and Korea, given workshops additionally in Italy, Russia, England, France, Canada, and Mexico.
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The Classroom Astronomer Newsletter
The Classroom Astronomer Newsletter
By Dr. Larry Krumenaker
The Classroom Astronomer Newsletter (TCA) [Inbox Magazine] is on astronomy education, for the general public, K-12, university. Currently on a hiatus and a private publication for now.