H-R Diagram ALL-IN-ONE Lesson | HR Diagram, Hertzsprung Russell Diagram

Rated 4.78 out of 5, based on 22 reviews
22 Ratings
Mrs Brosseau's Binder
Grade Levels
7th - 12th, Homeschool
Formats Included
  • Zip
Approx. 100 pages (including PDF and editable PPTX and DOC versions)
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Mrs Brosseau's Binder

What educators are saying

Used this in a small homeschool group setting for our astronomy unit. It was exactly what we needed.
Love this resource so much! this was the area I was least looking forward to as a first year teacher and I feel like this really helped me!
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This is the ultimate lesson for teaching about luminosity and the H-R Diagram! In this lesson your students will learn about luminosity; apparent brightness and absolute brightness; H-R diagram, the relationship between a star's luminosity and its surface temperature; why so many stars are found along the main sequence, why stars move off of the main sequence. This bundle of resources includes a lesson plan, PowerPoint, student notes, practice questions and formative assessment pieces – all are completely editable!

This lesson bundle also includes two amazing graphing activities. One plots actual star data, and is useful as homework or as an assignment. The second, a celebrity graphing activity, plots a star's hotness vs. star power. This is a fun and surprisingly accurate way to introduce the H-R diagram. Like all resources in this bundle, this is editable so you can switch the names of the celebrities - include your local stars, your principal, or yourself (I'm NOT brave enough to do that!).

Student learning goals for the H-R Diagram Lesson:

  • compare absolute and apparent brightness/luminosity
  • categorize stars based on features
  • explain relationships between star properties (mass, luminosity, size, mass and lifetime)

Please examine the images and preview above to see how this resource can help you and your students.

In the zipped file, you will receive:

★ 2-page lesson plan (PDF and editable Microsoft Word).

★ 29-slide editable PowerPoint presentation with hyperlinks to YouTube videos.

★ 7-page editable student notes (PDF and editable Microsoft Word) that coordinate with the PowerPoint in a fill-in-the-blank style, that includes 8 homework/practice questions (5 pages of notes, 2 pages of homework questions). A teacher version with blanks filled in is also provided in both file types.

★ 21 pages of editable task cards that can be used as formative assessments. 8 pages of quick checks to be used during class and 8 pages of retrieval practice questions to be later in the unit. For ease of use, these are included as all-different on a page, and all-the-same on a page (PDF file and editable PowerPoint file).

★ Two graphing activities: plotting an H-R diagram using star data (can be used in class, as homework or as an assignment) and a celebrity H-R diagram (used as an intro). 3 student pages, 2 pages of answer keys. (PDF file and editable PowerPoint file).


This lesson can further be supported by the H-R Diagram Doodle Note and Star Name Game Challenge.

This resource is part of my Astronomy all-in-one Lesson Bundle that is supported by (but does NOT include) my Astronomy Doodle Notes Bundle.

If you are interested in using the doodle notes with these lessons your best value is to purchase the Astronomy Growing Bundle. This bundle includes all the lessons, PowerPoint presentations, practice and activities as well as all the doodle notes and anchor charts. When additional lessons are added, you can be notified by following my store.

You can see the other resources in the Astronomy all-in-one Lesson Bundle by clicking the links below. Please follow my store for notifications when new resources are added to the bundle.

The Big Bang Theory


The Solar System


Hertzsprung-Russell Diagrams (H-R Diagrams)



Asteroids and Comets

Earth’s Seasons

Moon Phases


Solar and Lunar Eclipses


Life on Planet Earth

Revolutionary Astronomers

Dangers of Living in Space

Size of Space

Electromagnetic Spectrum

Total Pages
Approx. 100 pages (including PDF and editable PPTX and DOC versions)
Answer Key
Teaching Duration
2 hours
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