Ch 22: The Milky Way Galaxy Lesson Plans

About This Chapter

The Milky Way Galaxy chapter of this course is designed to help you plan and teach the structure of our galaxy in your classroom. The video lessons, quizzes and transcripts can easily be adapted to provide your lesson plans with engaging and dynamic educational content. Make planning your course easier by using our syllabus as a guide.

Weekly Syllabus

Below is a sample breakdown of the Milky Way Galaxy chapter into a 5-day school week. Based on the pace of your course, you may need to adapt the lesson plan to fit your needs.

DayTopicsKey Terms and Concepts Covered
MondayHow galaxies are formed
Theories about the formation of the Milky Way
The creation of spiral, elliptical and irregular galaxies
Monolithic collapse and the bottom-up hypothesis
Tuesday Discovery of the Milky Way
Structure of the Milky Way
How scientists determined the existence of the Milky Way
Halo, disc component, central bulge
Wednesday Nucleus of a galaxy
Milky Way's spiral arms
Definition of the nucleus, what goes on there
How we know the shape of the galaxy, radio waves, H I Hydrogen
Thursday Spiral density wave theory
Population I and II stars
Definition of spiral density waves and their purpose
Definition of Population I and II stars, their compositions and where they are found
Friday Our galaxy's massDifference between the galaxy's disc and halo, Keplerian motion, galactic year, galactic corona, dark matter

9 Lessons in Chapter 22: The Milky Way Galaxy Lesson Plans
Test your knowledge with a 30-question chapter practice test
Galaxy Formation: Spiral, Elliptical & Irregular Galaxies

1. Galaxy Formation: Spiral, Elliptical & Irregular Galaxies

This lesson explains how galaxies form, starting with the Big Bang. You'll also learn about the solar nebula hypothesis and three galaxy types, including spiral, elliptical, and irregular galaxies.

The Formation of the Milky Way Galaxy

2. The Formation of the Milky Way Galaxy

This lesson will explore two hypotheses as to how the Milky Way galaxy formed. These are the top-down and bottom-up hypotheses. We'll also go into what special connection you personally have to all of this.

How Our Galaxy Was Discovered

3. How Our Galaxy Was Discovered

This lesson will outline for you the basics of how the galaxy you live in, the Milky Way Galaxy, was discovered over time. You'll also learn about RR Lyrae and Cepheid variable stars.

The Structure of Our Galaxy

4. The Structure of Our Galaxy

If you ever looked up at the night sky far away from city lights, you would've seen a band of light across the night sky and lots of stars scattered around the rest of the sky. Why? The structure of our galaxy will explain exactly why.

The Nucleus of a Galaxy

5. The Nucleus of a Galaxy

This lesson will explore our galaxy's nucleus. Namely, we will find out how we can peer inside using radio waves and infrared, and what that and X-rays tell us about the cool thing that's located inside of it.

The Spiral Arms of the Milky Way Galaxy

6. The Spiral Arms of the Milky Way Galaxy

How do we know our galaxy has spiral arms? You can't really see them, but we can infer they're there thanks to radio waves and observations of other galaxies, which you will learn about in this lesson.

Density Wave Theory & Spiral Galaxies

7. Density Wave Theory & Spiral Galaxies

This lesson will teach you about the spiral arms of the galaxy: namely, the major theory that tries to explain their existence as well as why the spiral arms look so different in various kinds of spiral galaxies.

Population I and Population II Stars

8. Population I and Population II Stars

This lesson will explore the different populations of stars in our galaxy, including population I and II stars, as well as where you can find them and what metals are to an astronomer.

The Mass of Our Galaxy

9. The Mass of Our Galaxy

This lessons explores the estimates and numbers surrounding the mass of the Milky Way Galaxy and how they relate to Keplerian motion, the galactic corona, and dark matter.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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