Firsthand and Secondhand Accounts of Mount St. Helens
Ms. Chen's class of 24 fourth graders reads two short texts about the 1980 eruption of Mount St. Helens. Text 1 is a diary entry from a farmer who lived 12 miles from the mountain. She writes that at 8:30 a.m. the sky turned dark, ash fell 'like gray flour,' and she could not see the barn. Text 2 is a one-page encyclopedia entry that gives the date, the cause of the eruption, the number of miles of forest destroyed, and the ash fall in three states. After a whole-class discussion, students answer: 'How are these two accounts different?' Many students write, 'The diary is better because the farmer was actually there.' Others write, 'The encyclopedia is better because it has more facts.' Ms. Chen wants students to compare the focus and information in each account, not to rank them as true or false. She has 25 minutes the next day and a chart paper with two columns.
1. Explain how the focus and information in the diary entry and the encyclopedia entry differ. Use one detail from each text, and explain why the student comment 'the diary is better because the farmer was actually there' is not a complete comparison.
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The diary focuses on one person's sensory experience at a particular moment: the sky turning dark at 8:30 a.m., ash falling 'like gray flour,' and not being able to see the barn. Its information is personal and immediate-what the farmer saw, heard, and felt-but it does not try to cover the whole event. The encyclopedia entry focuses on summarizing the event for a general reader: the date, the cause, the miles of forest destroyed, and ash fall across three states. Its information is broad and factual, but it does not include one witness's emotions or moment-by-moment view. The comment 'the diary is better because the farmer was actually there' is incomplete because it ranks the texts instead of comparing them. Being there affects the kind of information the farmer can give-her personal view-but it does not make every statement in her account more complete or more accurate than the encyclopedia's summary. A full comparison says what each text emphasizes and what each can and cannot show, not which one is 'better.'
2. Design a 25-minute follow-up using a two-column chart. Include two questions that push students beyond ranking the texts and one sentence frame that supports comparison.
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Minutes 0–5: Re-read both texts aloud, asking students to highlight one sensory detail in the diary and one number or fact in the encyclopedia. Minutes 5–15: Build the chart with columns 'What this account shows well' and 'What this account does not show.' Under the diary, students put 'the farmer's sight and sound at 8:30' and 'what the sky looked like'; under the encyclopedia, 'the date, cause, and size of the eruption.' In the 'does not show' column, students note that the diary does not give the cause or the total damage, and the encyclopedia does not give one person's feelings. Minutes 15–22: Students answer in pairs: 'What can the farmer tell us that the encyclopedia cannot?' and 'What can the encyclopedia tell us that the farmer could not know from her barn?' These questions require using both texts rather than picking a winner. Minutes 22–25: Students complete the frame: 'The diary helps a reader understand ___, while the encyclopedia helps a reader understand ___. One detail that shows this is ___.' Collect the frames as an exit ticket.
3. A student writes, 'The encyclopedia is more true because it has dates and numbers.' What is the instructional next step, and what evidence would show the student has met the standard?
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The next step is to separate accuracy from completeness and purpose. The student is treating numbers as a truth test. Ask: 'Could the farmer's date be wrong? Could the encyclopedia leave out what the ash felt like? What is each text trying to do?' Have the student check one fact that appears in both texts-for example, the date of the eruption-and one thing that appears in only one text. That shows that both can be accurate while giving different information. Evidence of mastery: the student can state the diary's focus, one witness's experience, and the encyclopedia's focus, a broad summary, cite one detail from each, and explain that a firsthand account is not automatically more accurate-it gives a different perspective. A response that still says 'more facts means more true' would not meet the standard.