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What would make you change your explanation?

An explanation becomes testable when it connects to observations that could support or challenge it. Saying exactly what you expect to see makes a claim more useful than leaving every possible outcome compatible with it. One matching result still may not settle the question.

3–5 min

Questions you could explore

  • What observation would count against a proposed explanation?
  • How could a test depend on assumptions beyond the main claim?

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Media and information

What makes a historical source primary?

A diary and a history book stand in different relationships to the past, but neither is automatically beyond question. What counts as a primary source also depends on what you are trying to find out.

3–5 min

What makes a historical source primary?

Media and information3–5 minA diary and a history book stand in different relationships to the past, but neither is automatically beyond question. What counts as a primary source also depends on what you are trying to find out.

Media and information

Following a web claim back to its source

Five webpages repeating the same claim may lead back to one original report. Lateral reading looks beyond an unfamiliar page to investigate its publisher; following links upstream helps reveal where the evidence began.

8–10 min

Following a web claim back to its source

Media and information8–10 minFive webpages repeating the same claim may lead back to one original report. Lateral reading looks beyond an unfamiliar page to investigate its publisher; following links upstream helps reveal where the evidence began.

Media and information

What can a photo’s metadata actually prove?

An image file may carry a date, camera information, or a caption alongside its pixels. Those details can be useful clues, but some can be changed or removed as a file is edited and shared.

4–5 min

What can a photo’s metadata actually prove?

Media and information4–5 minAn image file may carry a date, camera information, or a caption alongside its pixels. Those details can be useful clues, but some can be changed or removed as a file is edited and shared.

What would make you change your explanation? | Speech Topic | speaking.app