1. Learning Goals:
4. Complex Knowledge: demonstrations of learning that go aboveand above and beyond what was explicitly taught. 3. Knowledge: meeting the learning goals and expectations. 2. Foundational knowledge: simpler procedures, isolated details, vocabulary. 1. Limited knowledge: know very little details but working toward a higher level.
How do stars differ from moons and planets, and from one another?
How does the classification of stars help us understand how they evolve over their lifetimes?
What are the different types of stars?
What happens when different types of stars die?
Why is it important for us to understand stars?

2. Bell Work
Please open your journal to your astrophysicist summaries
Describe each of the following properties of stars in your own words and identify the unit used to measure each.
Mass
Luminosity
Radius
Temperature

3. temperature - the average kinetic energy of particles, measured in K
mass - the amount of matter that makes up an object, measured in grams (g)
luminosity (aka absolute magnitude) - the actual brightness of a star, measured in comparison to brightness of the Sun
temperature - the average kinetic energy of particles, measured in K
radius - the distance from the center to any point on the circumference of a circular or spherical object, measured in km
What is another term for luminosity? - absolute magnitude
What is another property we can use to describe stars? - color, density, volume
What is the difference between mass and weight? - mass describes the amount of matter that makes up the object while weight measures the force of gravity acting on an object
Which property has the greatest influence on all the other properties? - mass has the greatest influence on the other properties

4. Answer the Questions of the day from Wednesday
What is the process that powers stars?
What are the important characteristics of the process that powers stars?

5. Today you will…
1) describe the physical properties of stars 2) create a scatterplot diagram using data for these properties 3) analyze the scatterplot patterns to describe the relationships between the properties Today’s Question: What patterns emerge when the properties of stars are plotted?

6. Properties of Homo sapiens
Brainstorming Session: What are some properties that we can use to describe ourselves? Write a couple down
Possible answers include but are not limited to: hair color, eye color, height, skin color, hair texture, body type, personality

7. What causes these properties?

8. Brainstorm
How can the relationship between foot size and height be graphically represented?
Discuss – whole class
Students may respond with line graph or scatterplot. If students answer “bar graph” review that the purpose of a bar graph is to compare two different things.

9. Now– you will: Measure your height and foot size
On a sticky note, write your name, height and foot size
Determine where your sticky note should be placed on the graph
After you have placed your data point on the graph, please return to your seat and wait silently until everyone has placed their data

11. Check the graph Causation – height influences foot size
What relationships can we describe based on the data?
Causation – height influences foot size
Causation – foot size influences height
Positive Correlation
Negative Correlation
Read the article about Luminosity.
Is there an independent and dependent variable? No, one factor doesn’t affect the other
Is this relationship most likely a causation or correlation?  Why? Correlation, there is no cause/effect relationship
Do you think there will be a positive or negative correlation?  Why? There is a positive correlation because one factor increases as the other increases
What did you notice that was unusual about the x-axis?  The sequence of values is reversed from the standard format (lower values are on the right and higher values are on the left)

13. Yes! We Can!!! Can we…..? 1) describe the physical properties of stars
2)  create a scatterplot diagram using data for these properties
3)  analyze the scatterplot patterns to describe the relationships between the properties
Yes! We Can!!!

14. Your individual task
You will plot the temperature and luminosity of stars and describe the relationship between them

15. Head over to Google Classroom

16. directions Read Directions Watch video with Directions on it
Read Directions again
Ask Questions?