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CogniGuide

Free Double Bubble Map Template for Comparing Ideas

Use this structure to list what two things share and how they differ. Then let AI build a double bubble map from your own notes, PDF or slides.

No credit card required

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CogniGuide at a glance

What you get
Interactive mind maps of the main ideas and how they connect. Free: overview maps (detailed maps on your first 3 creations). Plus: detailed maps with supporting concepts.
Exports
Your first PDF or PNG export is free; Plus exports anytime.
Price
Free plan: 5 creations a week, up to 3 a day. Plus: $9.99/month or $99.90/year (USD; local prices at checkout).
Sign-up
A free account is required before you create anything (Google or email). No credit card.
What you can upload
PDF, Word (.docx), PowerPoint (.pptx), plain text or Markdown, and images (PNG, JPG, WebP, GIF), or type a topic. One file per creation on the free plan; several at once on Plus.

How it compares: vs Knowt · vs Quizlet · vs NotebookLM · vs Mapify

Build a Double Bubble Map From Your Material

Skip the blank template. Add your reading and get a comparison map with branches already filled in.

Built From Your Notes

Upload a PDF, Word file, slides or text, and the AI pulls out the two subjects and their traits.

Shared and Unique Traits

Similarities sit in the center and differences sit on each side, so comparisons are easy to scan.

Quiz and Export Next

Turn the map into a quiz to test yourself, then export it as a PNG or PDF to print.

How to Make a Double Bubble Map

Three steps from your source material to a finished comparison map.

  1. 1

    Add your material

    Upload notes or a file, or type the two topics you want to compare.

  2. 2

    AI builds the map

    The AI sorts shared traits in the middle and unique traits on each side.

  3. 3

    Study, expand or quiz

    Expand any bubble, edit the text, then export or quiz yourself.

Free Double Bubble Map Template for Comparisons

A double bubble map is a thinking map for comparing two things. Two large circles hold each subject's unique traits, and a middle area holds the traits they share. Use it for compare and contrast writing, science topics like plant and animal cells, or history such as two rival empires. Start by naming the two subjects, then list shared traits first before filling in the differences.

  • Two subject bubbles: each holds the traits unique to one item.
  • Shared traits: the middle area connects features both subjects have.
  • Trait lists: short phrases work better than full sentences.
  • Compare step: a final line states the main similarity and difference.

Use the finished map to plan an essay, check your comparison, or revise before a test. CogniGuide can turn your own notes into a double bubble map you can expand and quiz yourself on.

Explore related topics

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Double Bubble Map Questions

Answers on using the template and building your own map.

What is a double bubble map used for?

It helps you compare two things by listing shared traits in the middle and unique traits on each side. Teachers often use it for compare and contrast writing and for science or history topics.

How many bubbles does a double bubble map have?

A standard double bubble map has two large outer bubbles for the subjects and a central overlapping area for similarities. Some versions add small bubbles for each trait.

Which files can CogniGuide turn into a double bubble map?

You can upload PDF, Word, PowerPoint, text, Markdown or image files, or type the two topics you want to compare.

Can I turn my bubble map into a quiz for free?

The free plan allows 5 creations a week with no payment needed, and maps can be turned into a quiz to test yourself.