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J anuary 6th, 2012

J anuary 6th, 2012 . ESSENTIAL QUESTION:. What causes the phases of the moon. LEARNING OBJECTIVE:. Be able to describe the phases of the moon as it revolves around the Earth.

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J anuary 6th, 2012

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  1. January 6th, 2012 ESSENTIAL QUESTION: What causes the phases of the moon LEARNING OBJECTIVE: Be able to describe the phases of the moon as it revolves around the Earth. WARM UP: When viewed from the northern hemisphere, describe the position of the sun, at sun rise and sunset, on the local horizon, on the following points on the calendar: Vernal Equinox, Summer Solstice, Autumnal Equinox and the Winter Solstice. AGENDA • Warm up • Discussions: • Phases of the Moon and Task Analysis

  2. January 6th, 2012 FORMATIVE ASSESSMENT: . Teacher led Questions on student’s understanding of today’s lesson. VOCABULARY: Solstice, Equinox, Milankovitch Cycle seasons, phases, eclipses, penumbra, umbra, synodic, sidereal . PRACTICE: Seasons, Path of the Sun, Phases of the Moon. ASSIGNMENTS: Seasons NOTES: Quiz Friday, Phases of the Moon

  3. January 5th, 2012 ESSENTIAL QUESTION: What causes the phases of the moon LEARNING OBJECTIVE: Be able to describe the phases of the moon as it revolves around the Earth. WARM UP: How do we define the magnitude of stars? What is the intensity ratio between a magnitude -1 star and a 0 magnitude star?` AGENDA • Warm up • Discussions: • Seasons (2 and 5) Task Analysis • Phases of the Moon (1,3,inish 4, 6) and Task Analysis

  4. January 5th, 2012 FORMATIVE ASSESSMENT: . Teacher led Questions on student’s understanding of today’s lesson. VOCABULARY: Solstice, Equinox, Milankovitch Cycle seasons, phases, eclipses, penumbra, umbra, synodic, sidereal . PRACTICE: Seasons, Path of the Sun, Phases of the Moon. ASSIGNMENTS: Seasons NOTES: Quiz Friday, Phases of the Moon

  5. January 4th, 2012 ESSENTIAL QUESTION: What causes the phases of the moon LEARNING OBJECTIVE: Be able to describe the phases of the moon as it revolves around the Earth. WARM UP: Define the following: Astronomical Unit (AU), Light Year (ly) and Parsec (PC). How is each used? AGENDA • Warm up • Discussions: Seasons (finish for periods 2) and Task Analysis • Phases of the Moon (1,3,5, Finish 4, 6) and Task Analysis

  6. January 4th2012 FORMATIVE ASSESSMENT: . Teacher led Questions on student’s understanding of today’s lesson. VOCABULARY: Solstice, Equinox, Milankovitch Cycle seasons, phases, eclipses, penumbra, umbra, synodic, sidereal . PRACTICE: Seasons, Path of the Sun, Phases of the Moon. ASSIGNMENTS: Seasons NOTES: Quiz Friday, Phases of the Moon

  7. January 3rd, 2012 ESSENTIAL QUESTION: What causes the phases of the moon LEARNING OBJECTIVE: Be able to describe the phases of the moon as it revolves around the Earth. WARM UP: Over the break, you probably had a chance to look at the night sky. What things were you able to observeand understand (even casually). What things are you able to share. If you did not observe the sky over break…well then you have failed this course. Welcome back! AGENDA • Warm up • Discussions: Seasons (finish for periods 2) • Phases of the Moon (1,3,5, Finish 4, 6)

  8. January 3rd, 2012 FORMATIVE ASSESSMENT: . Teacher led Questions on student’s understanding of today’s lesson. VOCABULARY: Solstice, Equinox, Milankovitch Cycle seasons, phases, eclipses, penumbra, umbra, synodic, sidereal . PRACTICE: Seasons, Path of the Sun, Phases of the Moon. ASSIGNMENTS: Seasons NOTES: Quiz Friday, Phases of the Moon

  9. December 15th, 2011 Honors Astronomy ESSENTIAL QUESTION: What causes the phases of the moon LEARNING OBJECTIVE: Be able to describe the phases of the moon as it revolves around the Earth. WARM UP: Next Slide AGENDA • Warm up • Discussions: Seasons (finish for periods 1,3,5) • Phases of the Moon (Finish 4, 6) • QUIZ RETAKE If you were not here Monday.

  10. A dime is 1.8 cm in diameter. Earth's moon is 3.844 x 105 km from Earth and has a diameter of 3.76 x 103 km. At what distance from your eye would you have to hold a dime so that it has the same angular diameter as the full moon (that it would cover the moon.) HINT: Drawing a picture will help you if your math skills have left the room) a. 200 cm b. 2 cm c. 0.2 cm d. 2 AU e. 2 LY

  11. December 15th, 2011 Honors Astronomy FORMATIVE ASSESSMENT: . Teacher led Questions on student’s understanding of today’s lesson. VOCABULARY: Solstice, Equinox, Milankovitch Cycle seasons, phases, eclipses, penumbra, umbra, synodic, sidereal . PRACTICE: Seasons, Path of the Sun, Phases of the Moon. ASSIGNMENTS: Seasons NOTES:.

  12. December 14th, 2011 Honors Astronomy ESSENTIAL QUESTION: What causes the phases of the moon LEARNING OBJECTIVE: Be able to describe the phases of the moon as it revolves around the Earth. WARM UP: What are solstices and equinoxes? When do they occur and what is the position of the sun on the celestial sphere for each solstice and equinox? AGENDA • Warm up • Discussions: Seasons • Phases of the Moon • QUIZ RETAKE If you were not here yesterday.

  13. December 14th, 2011 Honors Astronomy FORMATIVE ASSESSMENT: . Teacher led Questions on student’s understanding of today’s lesson. VOCABULARY: Solstice, Equinox, Milankovitch Cycle seasons, phases, eclipses, penumbra, umbra, . PRACTICE: Seasons ASSIGNMENTS: Seasons NOTES:.

  14. December 13th, 2011 Honors Astronomy ESSENTIAL QUESTION: What causes the phases of the moon LEARNING OBJECTIVE: Be able to describe the phases of the moon as it revolves around the Earth. WARM UP: Next Slide – Please do not simply write the letter! AGENDA • Warm up • Discussions: Seasons • Phases of the Moon • QUIZ RETAKE ON TUESDAY DEC 13th . STUDY SEC 2.2-2.4 ASSIGNMENTS: Video Questions. DO NOT LOSE VIDEO HANDOUTS! Last 20 minutes replayed 12/12, 12/15 after school – if there is interest I can set up a session before school or during lunch. Alternate Observation Assignment will be assigned when I get back tomorrow.

  15. Because of precession, someday it will be summer everywhere on Earth at the same time. • Yes, precession will naturally circularize the Earth’s orbit. • Yes, precession will eventually reduce the Earth’s axis tilt. • No, precession only changes the direction in which the North Pole points, and has nothing to do with the seasons. • Yes, precession will make summers occur at the same time, but in what is now the northern spring and southern fall. • Yes, but it would take tens of thousands of years, longer than current human history, for this to occur.

  16. December 13, 2011 Honors Astronomy FORMATIVE ASSESSMENT: . Teacher led Questions on student’s understanding of today’s lesson. VOCABULARY: Solstice, Equinox, Malinkovitch Cycle seasons, phases, eclipses, penumbra, umbra, . PRACTICE: Seasons ASSIGNMENTS: Seasons NOTES:.

  17. December 12th, 2011 Honors Astronomy ESSENTIAL QUESTION: What causes the phases of the moon LEARNING OBJECTIVE: Be able to describe the phases of the moon as it revolves around the Earth. WARM UP: What is a “light bucket” and why is it called a “light bucket” (Please continue on last week’s sheet) AGENDA • Warm up • Discussions: Seasons • Phases of the Moon • QUIZ RETAKE ON TUESDAY DEC 13th . STUDY SEC 2.2-2.4 ASSIGNMENTS: Video Questions. DO NOT LOSE VIDEO HANDOUTS! Last 20 minutes replayed 12/12, 12/15 after school – if there is interest I can set up a session before school or during lunch. Alternate Observation Assignment will be assigned when I get back tomorrow.

  18. December 12, 2011 Honors Astronomy FORMATIVE ASSESSMENT: . Teacher led Questions on student’s understanding of today’s lesson. VOCABULARY: Solstice, Equinox, Malinkovitch Cycle seasons, phases, eclipses, penumbra, umbra, . PRACTICE: Seasons ASSIGNMENTS: Seasons NOTES:.

  19. Per. 1 , 3 , 5 What the differences between diurnal and annual motion? Period 6 How do the shadows of a stick vary from hour to hour and season to season? What are solstices and equinoxes? When do they occur and what is the position of the sun on the celestial sphere for each solstice and equinox?

  20. Perihelion Inferior Conjunction Aphelion Opposition Conjunction EARTH Superior Conjunction

  21. For your concept maps – please draw!

  22. Objects are located on the celestial sphere in units of: • Miles • Kilometers • Light years • Parsecs • Degrees

  23. The angular size of your fist, held at arms length, is about: • 1 degree • 10 degrees • 5 inches • 10 inches

  24. The apparent size of the moon in the sky is: • About ½ degree • About 5 degrees • About 10 degrees • About a mile • About 2000 miles (1/4 the earth’s diameter)

  25. What makes Polaris a special star? • It is the brightest star in the sky • It is always directly overhead, no matter where you are • It is near the axis about which the sky turns • Its azimuth (direction) is always due north • C andD

  26. When an astronomer describes the altitude of something in the local sky, he or she means: • How high something is in the sky, in units of miles or kilometers • How high something is in the sky, in units of degrees • The direction toward something– north, south, east, or west

  27. During the year the Sun appears in front of different groups of stars. What are these called? • Circumpolar stars • Circumsolar stars • The constellations of the zodiac • The tropical constellations • Solstice stars

  28. When an astronomer describes the azimuth of something in the local sky, he or she means: • How high something is in the sky, in units of miles or kilometers • How high something is in the sky, in units of degrees • The direction toward something– north, south, east, or west

  29. Why are different stars seen in different seasons? • The tilt of the Earth’s axis • Stars move during the year • As the Earth orbits the Sun we see the Sun in front of different constellations • Because that’s how horoscopes work • Precession

  30. Why are the Moon and planets seen only in the constellations of the zodiac? • The planets all revolve in the same direction around the Sun • The planets all orbit in nearly the same plane, and the zodiacal constellations are in that plane. • The constellations in the zodiac are the oldest, and the planets have been known from ancient times • None of the above reasons

  31. When it is summer in the United States, in Australia it is: • Winter • Summer • It is always summer in Australia

  32. What causes the seasons? • In summer the (whole) Earth is closer to the Sun • In summer the tilt of the Earth’s axis makes the part of the Earth we are on closer to the Sun • In summer the Sun is up for more hours • In summer the Sun climbs higher in the sky so its rays hit the ground more directly • C and D

  33. If the tilt of the Earth’s axis to its orbital plane was 40 degrees, instead of 23 ½, but its distance from the Sun remained the same, what would happen to the seasons? • They wouldn’t change much • They would become less extreme–winter and summer would be more alike • They would become more extreme–winter colder and summer warmer • The whole Earth would get colder • The whole Earth would get warmer

  34. What makes the North Star special? • It was the first star to be cataloged by ancient astronomers. • It lies close to the north celestial pole and is therefore very useful for navigation. • It is the brightest star in the entire sky. • It is the brightest star in the northern sky. • It is visible from both the northern and southern hemispheres.

  35. Because of precession, someday it will be summer everywhere on Earth at the same time. • Yes, precession will naturally circularize the Earth’s orbit. • Yes, precession will eventually reduce the Earth’s axis tilt. • Yes, precession will make summers occur at the same time, but in what is now the northern spring and southern fall. • Yes, but it would take tens of thousands of years, longer than current human history, for this to occur. • No, precession only changes the direction in which the North Pole points, and has nothing to do with the seasons.

  36. In the northern hemisphere When is the Sun directly overhead at noon? • March 21 • June 21 • July 21 • Never

  37. Reality Check for Mr. Hellmund Because I have too many scattered notes: I need to get a feel where we are. Have you done: • Slides: • Per 1 - Seasons Slide #8 • Per 2 – Start Seasons • Per 3 – Seasons Slide #8 • Per 4 – Phases Slide? • Per 5 – Seasons Slide ? • Per 6 – Phases slide 8 • Thinking Map – Rotation/Revolution/Precession • Thinking Map – Celestial Sphere • Task Analysis: Seasons • Practice: Seasons

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