Astronomy 20 – The Solar System
Day 1

• I need 3 volunteers
– Different parts of room
• Game described
• 30 seconds to contemplate winning strategy
• Let’s try for a few rounds
• If necessary:
– Form groups of 6ish. Discuss strategy. Write down.
– Try again

• Adding students

Multi-tasking – something to ponder
• A lot of people today think they are “good” at multitasking.
• They’re wrong.
– LOTS of science has been done, ALL of the evidence says the same thing. They’re wrong.
• Here’s one way to show you
– From Psychology Prof at U. Mich, David E Meyer:
– Say the letters A-J out loud quickly. Go.
– Say the numbers 1-10 out loud quickly. Go.
– Say them both out loud, alternating. A-1, B-2, etc.
Go.

• Some highlights from syllabus
• See syllabus for actual words
• This PowerPoint is paraphrased

• microphone + computer = class movie
• All videos will be on website
• NOTE: your voice may be recorded
• Read the syllabus paragraph!!
• Record videos to help you succeed.
• Allow you to: see/hear things again, catch up when miss class.
• Attendance is still mandatory. Do not rely on the videos instead of coming to class!

• Kristen
– Learning Resource Center, 2 nd floor, library.
– Email?
– Hours?
• Jeff – tentative. Mostly for the lab class.
– Roof of Math building
– Tuesday night, 7:30pm

• Page 2
• Buy 6 forms of Scantron 882-E
• Textbook will be discussed during class.
Too much to write here. See syllabus for detailed info. (Sorry it’s so long.)

• Page 4
• Please let me know if you have a disability. The notecard homework is a private way to do that.
• Campus shuttle available to take you to and from car, especially at night. Call 310-
660-3100, call from a blue phone, or ask me to call.
– BE SAFE! Our police escorts are friendly!

• Form groups of 6
• Answer all of the questions.
• 20 minutes.
• Go

Why we use clickers

0
0
1. True
2. False
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55

Final grade vs. Participation rate
Prof. Vakil's Spring 2008 5 astro courses y = 0,1557x + 4,5537
R² = 0,5026
25,0
20,0
15,0
10,0
5,0
0,0
0 10 20 30 40 50 60 70 80 90 100 110 120
Final grade (%)

0
0
PRE-TEST:
A light year is a measure of
1. Time
2. Distance
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55

• The universe is ___________________ years old.
• A light year is
____________________________.

0
0
1. Time
2. Distance
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55

0
0
It is possible for astronomers today to detect an object
15 billion light years away from Earth.
1. True
2. False
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55

• SKIPPED THIS
• Sometime before our next class, at noon, go outside and point where the
Sun is at noon .
– Make your prediction right now. Point.
– Go test it tomorrow or sometime soon.

• Any questions about course?
• Any questions about astronomy?
• Any questions about your teacher?
• Any questions at all…

Some review material that you’ve probably seen before…
It is very important that you learn about traxoline. Traxoline is a new form of zionter. It is montilled in Ceristanna. The Ceristannians gristerlate large amounts of fevon and then brachter it to quasel traxoline. Traxoline may well be one of our most lukized snezlaus in the future because of our zionter lescelidge.

It is very important that you learn about traxoline. Traxoline is a new form of zionter. It is montilled in Ceristanna. The
Ceristannians gristerlate large amounts of fevon and then brachter it to quasel traxoline. Traxoline may well be one of our most lukized snezlaus in the future because of our zionter lescelidge.
Directions: Answer the following questions.
1. What is traxoline?
If you don’t remember this AND you’re having trouble with these
2. Where is traxoline montilled? very simple questions, you
3. How is traxoline quaselled? probably won’t succeed in this class…
4. Why is it important to know about traxoline?
KIDDING!

• This is the last slide
• WAIT FOR SECOND CLASS TO
DISCUSS:
– Folder for grades, submitting, handing back paper

0
0
1. 20-25
2. 25-30
0
0
3. 30-35
4. 35-40
5. 40-45
0
0
6. 45-50
0
7. 50-55
0
3
8. 55+
4 5 6 1 2 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55