Fourth-Grade Sourcing Inquiry With a Photograph and a Letter
Mr. Patel's fourth-grade class is investigating why some Oklahoma families moved west during the 1930s. He gives students two sources: a 1936 letter from a migrant mother describing dust storms and a 1937 government photograph captioned 'Dust Bowl refugees.' During discussion, several students say the photograph 'proves everyone was poor and left,' and one student says the letter is fake because it is typed. An English learner with emerging English copies the caption but does not speak. Mr. Patel has 30 minutes and wants students to use sourcing, corroboration, and context. He also must prepare them for a district constructed-response assessment that asks them to cite evidence.
1. Plan a 10-minute mini-lesson on sourcing and corroboration using the two sources. What questions should Mr. Patel model, and what should students do with the answers?
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Mr. Patel should model three sourcing questions before asking students to use the sources. First: 'Who made this, and when?' The letter was written by a migrant mother in 1936; the photograph was made by a government photographer in 1937. Second: 'Why was it made, and for whom?' A letter may be personal and selective; a government photograph may be made to document conditions or to persuade the public. Third: 'What can this source show well, and what can it not show?' The letter can show one family's experience; the photograph can show a visible scene but not the whole population.
Then students should corroborate: 'Where do the two sources agree? Where do they differ?' They might note that both show hardship, but one family's letter does not prove that every family was poor or left. The teacher should write a class anchor chart with three columns: source, what it shows, and what it cannot prove. Students then revise the claim 'everyone was poor and left' into a more defensible claim, such as 'Some families experienced dust storms and moved, according to these two sources.' The 10 minutes should end with one sentence frame: 'Source ___ supports the idea that ___ because ___, but it does not prove ___.' This directly prepares students for the constructed response.
2. Design a discussion structure that includes the English learner and addresses the overgeneralization without embarrassing students. What teacher moves are essential?
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A useful structure is a think-pair-share with a structured sentence frame and a whole-class 'claim and evidence' chart. First, students individually underline one detail from the letter or write one observation about the photograph. Second, pairs use frames: 'I notice ___. This shows ___. This does not prove ___.' The English learner can participate by matching picture cards to words such as dust, farm, move, and photograph, then saying one framed sentence with a partner. The teacher should not require the student to speak spontaneously in front of the class.
During the whole-class discussion, Mr. Patel should treat overgeneralizations as reasonable first drafts. He can ask: 'What word in that claim is too big?' Students may identify everyone or proves. Then he asks for a smaller claim and evidence. He should use wait time and have students revise in writing before speaking. Essential moves include preteaching vocabulary, providing a word bank, allowing bilingual planning, and assigning a clear partner role. He should also ask who is not represented in the sources, which helps students see that two sources cannot prove a universal claim.
3. Create a scoring guide for a short constructed response that asks students to make a claim about migration and cite evidence from both sources.
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The prompt: 'Why did some Oklahoma families move west in the 1930s? Use evidence from both sources. Explain how your evidence supports your claim.'
Score 3: The response makes a clear, limited claim, such as 'Some families moved because dust storms made farming difficult.' It cites relevant evidence from both the letter and the photograph, explains the connection, and avoids overgeneralizing from two sources. It may note that the sources show different kinds of evidence.
Score 2: The response makes a reasonable claim and uses evidence from one or two sources, but the explanation is thin or one source is used only as a caption. It may include a small overgeneralization, such as 'many people' without qualification, but the overall reasoning is sound.
Score 1: The response restates the prompt or makes a claim without relevant evidence, or it treats the photograph as proof of everyone's experience. It may quote a caption without explaining it.
Score 0: The response is off topic or gives no claim. For the English learner, the same content criteria apply, but spelling and grammar should not lower the score unless they interfere with meaning.