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2.7 Corroborating Multiple Documents

To help students better understand an historical event or issue, it is important to teach them how to corroborate their evidence by comparing the perspectives, argument, claims, and evidence across multiple sources on the same topic. The Reading Like a Historian program also offers suggestions to help teach students the skills of corroboration:

Corroboration asks students to consider details across multiple sources to determine points of agreement and disagreement. These questions are helpful guides to students when corroborating documents:

  • What do other documents say?
  • Do the documents agree? If not, why?
  • What are other possible documents?
  • What documents are most reliable?

Stanford History Education Group

The practice of corroboration correlates to the CA Historical and Social Science Analysis Skills, and the related Reading Standards for Literacy in History/Social Studies. Select the links below to view some of these standards.

CA Historical and Social Sciences Analysis Skills

Reading Standard 6

Reading Standard 8

Reading Standard 9

Time to View

Watch "Reading Like a Historian: Corroboration" to see how a high school teacher leads his students through the practice of corroboration. Pay attention to the varied ways the teacher has students ascertain the reliability of evidence and sources to gain a deeper understanding of the March on Washington. Select the following link to view the correlated content standards.


Reading Like a Historian: Corroboration External Link (Run time 11:06)

Download transcript

Time to Extend

Select the following links to access the lesson materials and related content standards for the "March on Washington" lesson discussed in the video.

March on Washington Lesson Materials

CA History-Social Science Standards, Grade 11