Tips for teaching intro astronomy
First and foremost: this may be the only science class some of these people ever take, so think carefully about what you want them to get out of the class.
How do you want to change them? What do you want them to
remember
20 years from now (even if they don't specifically remember that they learned it in this class). Always keep this in mind when making lesson plans
Make lesson plans
A complete, formal lesson plan includes goals for the unit
(usual a
chapter from the text), the most important ideas, a brief outline of the lecture material, notes on potential problems, topics covered in lab/discussion and homework, and what details will come from the book only.
If you don't do a formal, complete lesson plan, at least write
down the items from the unit you want to change them, the items they need
to understand future units, and the items you
want them to know for the exam. If the only thing you have is items you
want them to know for the exam, consider dropping the unit.
Be aware of student expectations
Many students take astronomy thinking they will learn things
like
the names of constellations, mythologies, or how to read a sundial.
Many students take astronomy because they are afraid of taking a
"hard science" class like physics or chemistry, or they think astronomy will have less math.
Be up front with them about the topics covered and the necessity
of
using math as well as fundamental physics, chemistry, and possibly geology and biology.
Don't repeat the book
The book is expensive. If you're just going to repeat it, don't
make them buy it. Instead, cover the material from a different angle,
point out connections students are likely to miss in the reading, address
common misconceptions, and use active learning techniques to engage the
students and increase their level of understanding. Let the book fill in
details like numbers or specific features. Don't add extra details unless
it's to tie things together or involves a discovery too recent for the
book
Be aware of deadlines
Know when the last day of drop-add is and be prepared for
students who add the class on that day.
Make sure there is enough
evaluated work or sample of the exam so students can assess whether or not they should drop before that day.