Before the Bell Enter quietly Pick up notebook from back of the room Have a seat when the bell rings

Warm-Up “We’re about to go waaay back, back into time…” (Anyone know what song this comes from?) 1. Make a list of everything you did today that probably wouldn’t have been possible in the 17 th century (1600s) 2. How do you think scientists were able to make such remarkable observations given low technology? 3. If you did not have a telescope or map of space, etc. how could you calculate the sizes of planets?

Tips for Success Come to class on time and prepared Take notes in class! Pay attention during videos in class! Review powerpoints online! Review ALL worksheets & videos before an exam (Study sheet, flash cards, Review game)

Notebook Checks Date EVERY page Number EVERY page Update Table of Contents!

KWL Know: List everything you know about life in the past Want to Know: List everything you want to know about life in the past Learn: Fill in at the end of class based on what you learned today

Brain Break Who are 5 famous people (dead or alive) you would like to have a conversation with or hang out with? Why did you choose these people?

Unit 3: History of Astronomy Today & Tomorrow: Ancient Astronomy Lifestyles of the rich and the famous and their theories Essential Questions: What was life like in ancient Greece? Who were these “famous” people? How did they develop knowledge of the cosmos? What did they postulate?

Ancient Astronomy: COPY Astronomy is not the property of any one culture, civilization or era Same ideas, tools, and misconceptions have been invented and reinvented by people all over the world Astronomy born because people wanted to understand where we came from and how we fit into the cosmos

Ancient Greece College/Career Prep Class: Read mini article on Ancient Greece As read underline or highlight important information that tells you what life was like in ancient Greece Time: 10 min

Journal Entry If time travel were possible, would you rather live in ancient Greece or Charlotte in modern day? Explain using details from the article and what you have experienced so far

Famous People Will record notes on 5 people

Observations Discuss: How long would you have to observe the stars in order to determine the motion of the Sun? How would you go about doing this without the aid of technology?

Observations _ Notes to Copy Greek astronomers observed the sky with the naked eye Throughout the night, they saw the stars move across the sky Over the course of a month, they saw the phases of the Moon change

Observations_Cont. Astronomers noticed the planets but were not sure how they traveled To the naked eye, planets vary in brightness and do not remain in the same place in the sky The planets seem to wander around the celestial sphere The word planet derives from the Greek word planetes, meaning “wanderer”

Observations_Cont. Planets never stray from the ecliptic Planets usually travel from East  West However, there is a time when the planet’s eastward motion stops and the planet appears to move westward before reversing again

Observations_Cont: Astronomers knew that the retrograde motion was related to brightness of the planet The challenge was to find a solar model that explained the motion of all of the planets They hypothesized that the brightness is due to the distance from earth Could this be possible?

Quick Write Letter to astronomers explaining if it is possible for brightness to be related to distance from planets What else could cause the brightness

Retrograde Animation

Key Vocab Prograde Motion- East  West motion of stars Retrograde Motion- the “backward” loops of the planet

Exit Ticket What did you learn today about ancient Greece? What did you learn today about a famous astronomer?