Big Bang Theory


Big Bang Theory introduces students to a popular idea about how the universe came into being. Students will discover some of the popular opinions that relate to the theory. They will also learn how certain concepts, such as gravity, might have played a part in how the stars and planets formed.

The “Options for Lesson” section of the classroom procedure page list a few ideas for activities or tasks that you could add to the lesson if you have time or want to extend it. One idea, for instance, is to hold a vote after students present their plays for best, most creative, etc.

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What our Big Bang Theory lesson plan includes

Lesson Objectives and Overview: Big Bang Theory teaches students about the most popular idea to explain how the universe formed. Students will discover some of the ideas the the theory includes, like that the universe began to form from a single atom at the beginning of time. They will also learn how various concepts like cosmic microwave background radiation contribute to the validity of this theory. This lesson is for students in 4th grade and 5th grade.

Classroom Procedure

Every lesson plan provides you with a classroom procedure page that outlines a step-by-step guide to follow. You do not have to follow the guide exactly. The guide helps you organize the lesson and details when to hand out worksheets. It also lists information in the yellow box that you might find useful. You will find the lesson objectives, state standards, and number of class sessions the lesson should take to complete in this area. In addition, it describes the supplies you will need as well as what and how you need to prepare beforehand. For this lesson, simply ensure students have access to the internet for the activity portion.

Options for Lesson

There are a few suggestions in the “Options for Lesson” section of the classroom procedure page that you could incorporate if you wish. One idea is to allow students to work in small groups for the activity instead of in pairs. (You can adjust the activity instructions accordingly.) After students complete their plays, you could have them vote for the best, most creative, etc. play among the class. Another option is for students to write a paper from the perspective of a particle from a planet or star. One more idea is to turn some of the two-person plays into large productions with scenery, actions, and so on. If you choose to do this, consider having students extend the stories and assigning students to work on props, work on costumes, etc.

Teacher Notes

The teacher notes page provides an extra paragraph of information to help guide the lesson. This paragraph explains some of the key content that you will teach students as you deliver the lesson. It suggests you take advantage of other resources online or elsewhere that provide more information on the Big Bang Theory. You can use the blank lines to write down ideas or thoughts you have about the topic as you prepare the lesson for the students.


The Big Bang Theory lesson plan includes three worksheets: an activity worksheet, a practice worksheet, and a homework assignment. Each one helps solidify students’ grasp of the lesson material and helps them demonstrate their knowledge in different ways. Use the guide on the classroom procedure page to determine when to hand out each worksheet to the students.


Students will work with a partner to create a short story or play. One person will take the part of a planet particle while the other takes the part of a star particle. Eventually, the planet particle will become part of a planet and the star particle, part of a star. Students will create a dialogue between the two particles that discusses the Big Bang Theory from their perspectives. The play will not include props or scenes. (See the “Options for Lesson” section.) Students can use the content pages as well as other available resources to find information to include in their play. They can write out a rough draft and take notes on separate paper and use the worksheet to write the final copy. You can copy extra sheets of the second worksheet page if needed. Each person should have roughly the same amount of lines. After all students complete their plays, they can present them to the class.


For the practice worksheet, students will answer 18 questions based on information from the content pages. The types of questions vary and include true or false, naming, and fill in the blank. You may or may not choose to allow students to use the content pages for reference. This practice page could work as a quiz if you like.


The homework assignment splits into two short sections. The first section requires students to explain the meaning of three numbers as they relate to the Big Bang Theory. For the second section, students will fill in the blank to 11 sentences. There is no word bank with the correct terms. Similar to the practice worksheet, you could choose whether or not to allow students to reference the content pages to complete the assignment.

Worksheet Answer Keys

The final two pages of the lesson plan document are answer keys for the practice and homework worksheets. All the correct answers are in red to make it easier for you to compare them to students’ responses. For the most part, students’ work should match the answer keys. However, given the nature of some of the questions on these assignments, there may be some variation. If you choose to administer the lesson pages to your students via PDF, you will need to save a new file that omits these pages. Otherwise, you can simply print out the applicable pages and keep these as reference for yourself when grading assignments.

Additional information


4th Grade, 5th Grade



State Educational Standards


Lessons are aligned to meet the education objectives and goals of most states. For more information on your state objectives, contact your local Board of Education or Department of Education in your state.

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Great Big Bang Resource

Good information and good questions

Teacher S.

Big Bang Theory lesson plan

Great, very detailed, lots of extra info links to external sites and sources, would definitely recommend it.

Mildred J.

The Big Bang Theory

Excellent resource for a beginning teacher.

Teacher S.

Bi Bang Lesson Plan

It is a great LP and worth adding to my lesson material supply.