Choosing the Anchor Source: A 1910 Census Page in a Fourth-Grade Town Study
At Lincoln Elementary, four fourth-grade teachers share a 45-minute social studies block twice a week. Their unit question is 'How did our town change between 1890 and 1950?' The team has three sources: a legible 1910 federal census page listing 40 residents with occupations and birthplaces; a 1950 chamber of commerce pamphlet with population figures and booster language; and a two-paragraph textbook summary. Six students are English learners reading below grade level. One teacher wants the textbook first so students 'have the facts before they look at documents.' The other wants the census page in lesson one. The district requires at least one document-based lesson per unit and asks teachers to name the sourcing skills students will practice. Planning time is 30 minutes. The team must decide the lesson-one source, the claim students will evaluate, and how to support the English learners without stripping the task of its thinking.
1. The team has 30 minutes. Which source should anchor lesson one, and what is the strongest argument for that choice against the colleague who wants the textbook first?
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Anchor on the census page, but not cold. The reasoning chain: (1) The unit asks how the town changed, and change claims need evidence from at least two points in time, so a document has to be central rather than decorative. (2) The census is the only source that lets students generate evidence themselves. Forty residents can be tallied in one period - occupations, birthplaces, household size - while the textbook delivers conclusions ready-made and the 1950 pamphlet is promotional material whose population figures serve a booster purpose. (3) The textbook-first objection has a real point: without vocabulary, English learners spend the period decoding. The fix is a six-minute context build (what a census is, who the enumerator was, what 'keeping house' means) plus a sort-and-tally task with sentence frames - not a switch to the textbook. (4) Keep the textbook as corroboration at the end; a secondary source is more useful once students have something to check it against. Name the sourcing skill explicitly: who made this, when, for what purpose, and what it can and cannot show.
2. A student writes, 'The census proves most people in this town were farmers.' What is wrong with the claim, and what should the student do next?
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Three separate problems. Scope: one enumeration district, perhaps one street, 40 people, one day in 1910 - it cannot stand for the town, let alone the country. Category: occupation entries are the enumerator's words, and 'farmer,' 'farm laborer,' and 'keeping house' are not the same thing; women's and children's work is systematically underrecorded. Inference: a tally of a page is a count, not proof of a claim about 'most people.' The next move is a precise recount: how many of the 40 list farming, and how many list a mill, store, or railroad job? Then rewrite as a hedged, quantified claim - 'on this page 14 of 40 residents listed farming, so farming was common in this neighborhood in 1910, but the page cannot tell us about the whole town.' Finally, compare with the 1950 pamphlet to ask what each source can support. This teaches sample versus population without the jargon, and it teaches students to size a claim to its evidence.
3. Write the central question students should be able to answer by the end of the two lessons, and explain what makes it a good question rather than a decorative one.
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Something like: 'Who lived and worked in this town in 1910, and what does the census let us say about them - and what does it leave out?' It is a good question because it cannot be answered from memory or from the textbook paragraph; it requires the tally. It also carries a built-in limitation clause, so a complete answer must include the source's limits rather than just its contents. And it produces a transferable skill: making a claim proportional to the evidence available. A weak alternative is 'How did the town change?' - too broad for two periods and it invites the pamphlet's booster narrative as an answer. Post the question, return to it at the close, and make the exit ticket ask for three things: one claim, one number from the page, and one limitation. That exit ticket tells you whether students used the document as evidence or as illustration.