Matt Bobrowsky

I do a lot of public speaking, professional development workshops, teaching, and writing. Topics include astronomy, physics and physical science, the process of science, science vs. pseudoscience, astrobiology, science teaching, and -- new -- a presentation on the 2017 solar eclipse. Author of the "Phenomenon-Based Learning" series of books on teaching physical science (published by NSTA Press). See


Delaware State University

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Recent Posts by Matt

Mon Feb 19, 2018 7:00 AM in Misconceptions in Science
> This helped most when my teacher completely shocked 98% of the class by telling us a hypothesis is NOT an "educated guess." Asmara's teacher was correct, and in case anyone would like to understand hypotheses better, here's a one-pager about them. A hypothesis is not a guess at the outcome of an experiment. A hypothesis is a possible (or suggested) ...

Fri Feb 09, 2018 7:34 AM in The Drake Equation
The Drake equation is not directly used by scientists in their research. Rather it is often used when talking about life in the universe to non-scientists, such as in astrobiology courses, as James mentioned. One of the keynote addresses I sometimes deliver is on astrobiology, and I discuss the Drake equation quite a lot, as it relates to many fascinating topics regarding the development of life...

Wed Feb 07, 2018 4:21 PM in Teaching Controversial Topics in Science
James makes a good point, and I'd like to follow up pertaining to Ashton's statement, "I hope that in my future classroom I will be able to share multiple different points of view on controversial topics." It's important to understand that, for most of the "controversial topics" that Megan mentioned, there are not "different points of view" in science. For example, we know that humans are th...

Recent Public Collections by Matt

Phases of the Moon

2 Resources

This activity allows students to observe how the changing phases of the moon correlate with the moon's position in the sky. Using this information, students formulate a hypothesis for explaining the changing phases of the moon. Note that this activity also provides an example of the correct use of the word "hypothesis" as a possible explanation of some observed phenomenon (not a guess at the outcome of an experiment).

Type: User uploaded resource

Type: User uploaded resource