Astronomy 20 – The Solar
System
Day 1
Volunteers
• I need 3 volunteers
• Must have a child 8 years or younger in
your house (often)
Clicker introduction
Why we use clickers
Astronomy is going to be the best
class this semester.
1. True
2. False
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PRE-TEST:
A light year is a measure of
1. Time
2. Distance
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A miniature astronomy
lecture
• The universe is ___________________
years old.
• A light year is
____________________________.
POST-TEST:
A light year is a measure of
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2. Distance
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It is possible for astronomers to detect an object 15
billion light years away from Earth.
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2. False
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Class management
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Attendance
Adding students
Any questions about course?
Highlights of syllabus
Homework
End of PPT
• Any questions of any sort, astronomy or
not?
– Shoebox questions = questions off topic
– Write them down on a paper with your class
dates & time (e.g. Mon-Wed 1pm)
– Will answer at the beginning of next class
– EXCEPT TODAY. All questions fair game
today.