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Big Bang

Driving Question: How did the Universe begin?

In an instant, the Universe went from nothing to producing the building blocks for everything we know. The Big Bang helps explain how these massive changes took place.

Learning Objectives:

  1. Explain the Big Bang theory and the evidence that supports it.
  2. Investigate the historical thinking skill of causation.
  3. Use scale switching to make sense of the history of the Universe, Earth, and humanity.

Vocab Terms:

  • Big Bang
  • causation
  • complexity
  • element
  • energy
  • matter
STEP 1

Opener: Big Bang

We know a lot about the history of the Universe, but you may be surprised to learn that there are some mysteries we have yet to solve.

STEP 2

Causal Thinking

Teaching Tools

An OER Project teacher shares why Alphonse is on her must-do list for Unit 2: “This is a deceptively effective skill builder. The fictional framing reduces complexity, and the analytical habits transfer directly to historical content. I use it early and reference the framework repeatedly throughout the course.”

Students always have fun with OER Project’s unofficial mascot, Alphonse the Camel, but they can struggle with defining short-, intermediate-, and long-term causes. This community conversation External link provides classroom-ready strategies for helping students understand these terms. 

Everything that happens has a cause: we call this “causation.” Now that you know what it is, learn how historians use it every day!

STEP 3

Big History’s First Threshold

Teaching Tools

Students often think it’s exciting to watch videos in the classroom, but educational video-watching is a skill, just like reading an article! To ensure students are getting the most from videos, be sure to set the context, require active viewing, and periodically check for understanding. Want more video tips? Check out the OER Project Video Guide External link .

The first threshold in Big History was passed billions of years ago, but it wouldn’t have happened without certain “ingredients” and a just-right set of conditions.

Threshold 1: The Big Bang External link

The Big Bang provided the raw materials for everything around us including space, time, matter, and energy.
STEP 4

Origin of the Universe

Teaching Tools

The Big Bang is one theory for the origins of the Universe, but what about the other theories? Showing students a clip from the movie Spider-Man: No Way Home or Dr. Strange in the Multiverse of Madness is a great hook to get students thinking about the Universe. Introduce students to a few of these theories: cosmic inflation, the multiverse theory, the black hole Universe, or the anti-Universe. Then, have students use their claim-testing skills to decide which theory sounds the most plausible.

As students watch the Big Bang video, help them engage critically with the material by providing a note-taking strategy or a graphic organizer, or have them answer the guiding questions and pause the video to check for understanding. Providing them with something to do while watching helps activate thinking and makes connections to prior knowledge.

The Big Bang created the building blocks for new complexity in the Universe. This is your opportunity to watch how it all went down.

The Big Bang External link

We may not know everything about the Big Bang, but there’s a lot we do know. Our knowledge of the Universe begins just a fraction of a second after the Big Bang took place.
STEP 5

Geography: Map of the Observable Universe

Teaching Tools

This activity aligns with Standard 1 of the National Geography Standards (NGS) and helps students understand how to use different types of geographic representations to ask and answer geographic questions. Explore Big History’s geography resources and how each activity aligns to the NGS in this alignment and placement doc External link .

How can we begin to understand the age and vastness of the Universe? Maps and timelines can help!

STEP 6

Closer: Big Bang

You’ve learned a lot about the early Universe in this lesson. Now it’s time to put that knowledge to work.

Extension Materials
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In these graphic biographies we’ll pay a visit to some of the key scientists who helped us understand the Big Bang!
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Dr. Wu and the Left-Handed Universe

Teaching Tools

Did you know that one of the most important physicists of the twentieth century is also remembered as the “First Lady of Physics”? Learn more about the life and accomplishments of Dr. Wu in this blog post External link by historian Bennett Sherry.

So you now know how every scientist’s work builds on the work of other scientists. You’re about to meet one of the big ones in the discipline of physics.

...

Revealing the Dark

Teaching Tools

Are your students new to reading historical comics? We’ve got a mini lesson to help them get the most out of these materials that includes a short video, tool, and introductory activity. Check out our graphic biographies lesson plan External link to learn more. 

Dr. Vera Rubin examined the stars her entire life, and along the way, her observations transformed astronomy.