Free / Grades 6-7, with reading support
Archive Detectives
What can these records tell us, and what must we leave uncertain?
4 flexible sessions / about 150 minutes including practice / history, reading and math
Suggested rhythm: two sessions a week for two weeks. Week 1: chronology and source perspective. Week 2: compare records and revise an account. Take extra reading time whenever useful.
Reading, watching and paper activities are free. Parents and instructors can save a collection; scheduling it for a student requires Plus or Lifetime. No upload is required.
Before you begin
Read short passages, order positive CE year labels and subtract whole numbers. The timeline video is a foundation refresher; the project asks for more advanced source comparison. Read aloud or dictate as needed.
Invented records, private work. Every local record below is invented by S3U for practice, not a real historical document. No family records, real addresses, interviews, uploads or public sharing are needed. Use only the supplied evidence; do not invent missing observations. No live supervision is provided.
Materials
- 4 sheets per learner: Investigation journal
Print the pages or copy the evidence and headings into a notebook.
- 2 sheets per learner: First and revised account
Use clean scrap paper or an optional private project notebook; retain both versions.
- 1 per learner: Pencil
Point, speak or dictate instead of handwriting.
- 1 shared: Browser with audio or transcripts
Read transcripts together. Separate worksheet printing is optional.
Choose the support that fits
- More support: read one record at a time. Separate what its words say from what the reader suspects. Use a two-column says / does not show list.
- More challenge: propose two explanations that both fit the records, then identify a new source that could help distinguish them. Do not invent that source's contents.
- Access options: use spoken explanations, a labeled table or dictation. Spelling, drawing quality and presentation confidence are not substitutes for evidence. Keep work private.
What good evidence looks like
- Keep each event attached to its date; distinguish year-label gaps from exact elapsed time.
- Identify a source's creator, audience and possible purpose without assuming its type makes it true or false.
- Support a limited claim with specific source IDs and explain what the records cannot establish.
- Check whether matching accounts are independent or repeat the same origin.
- Retain a first account and revise a claim using evidence, uncertainty and a useful next question.
These are discussion criteria, not a new automatic score. Existing lesson and worksheet records keep their own subjects. Checking off a planned task does not demonstrate mastery or add a second grade.
Session 1 / about 35 minutes
Put the dates back with their events
Goal: Order records, compare year-label gaps and preserve a first tentative explanation.
Preparation / about 6 minutes of adult support: Have journal 1 and a first-account sheet ready. Keep the first account even if later evidence changes it. These are invented reading-room records.
Start by pairing each date with its event. Put earlier positive CE years before later years. In a separate museum example, an opening in 1930 precedes a repair in 1934: the year labels differ by four. We do not know the exact months or days. Equal-size cards are not a time scale. An event happening later also does not prove the earlier event caused it. A timeline is a useful organizer, but it is not a time machine with a witness statement attached.
What changes if someone moves a date but leaves its event behind? What evidence would a claim about cause need beyond the order of events?
- Read a timeline without guessing / about 5 minutes
- Order Records by Their Dates - Practice 1 / about 10 minutes
- Order the reading-room records / about 20 minutes
Fun fact: A date is only one part of a document investigation: its maker and intended readers can change the questions you ask about it. Source
S3U / Archive Detectives / Journal 1 of 4
A reading room through time
Fictional record labels: R1 roof repair, 1941; R2 reading room opened, 1924; R3 extra shelves installed, 1927. Put them in order below. Then write a first account: what changed, and what do these labels not tell you about visitors?
| Position | Record ID, event and year | Gap from previous year label |
|---|---|---|
| First | Not applicable | |
| Second | ||
| Third |
Are the two gaps equal? Why must I not infer exact months, visitor numbers or a cause from these labels?
Save my first account separately. Write one question I need more evidence to answer.
Session 2 / about 35 minutes
Meet the people behind the words
Goal: Identify maker, audience and possible purpose before making a claim from a record.
Preparation / about 7 minutes of adult support: Have journal 2 ready. Read both source cards aloud if helpful. A possible purpose is an interpretation to support, not a fact read from someone's mind.
Ask who made each record, when, for whom and why. Separate the author's words from your interpretation. In a separate example, a museum manager's invitation to visitors says "our best exhibition yet." That is a promotional claim, not a measured comparison of every exhibition. It can still tell us how the manager tried to attract visitors. A private letter can describe an experience, but one person is not a sample of everyone. Neither a fancy heading nor a diary lock supplies a truth guarantee.
Can a notice be useful evidence about advertising even if it cannot prove its promise? What extra information would help us test the promise?
- Ask who made the source / about 5 minutes
- Ask Who Made a Historical Source - Practice 1 / about 10 minutes
- Question the notice and letter / about 20 minutes
Fun fact: An advertisement can be studied as a historical source. Its purpose and intended audience are part of the evidence, not reasons to discard it automatically. Source
S3U / Archive Detectives / Journal 2 of 4
Two records, different viewpoints
All records are fictional. A: manager's public notice, May 1, 1958: "Come to the reading-room reopening on May 3! More room for everyone." C: visitor's letter to a cousin, May 4, 1958: "At 11 yesterday there was no free seat near the window. I waited ten minutes."
| Source | Creator / audience | Possible purpose and supporting words |
|---|---|---|
| A | ||
| C |
Which date does C describe? Which words make that different from the date of writing?
Choose one claim these records do not establish. Explain why the source type alone cannot settle its truth.
Session 3 / about 40 minutes
Two copies are not two witnesses
Goal: Compare claims at the same scope and distinguish repeated wording from independent evidence.
Preparation / about 8 minutes of adult support: Bring journal 2 as well as journal 3. Keep source IDs attached to each observation. Do not turn entries into unique visitors or a morning into a whole day.
Compare what records actually cover: a place, period and kind of observation. A busy corner does not establish a full building. A tally of entries may count one person more than once. Matching words also may come from a shared origin. If a newsletter quotes a manager's notice, the quote is not a second independent observation of the notice's promise. It may show the message circulated. We need evidence that fits our question, not the largest stack of matching paper. A photocopier cannot become a second eyewitness.
Could a window area be full while other seats remain free? Could 18 entries come from fewer than 18 people? Suggest a record to investigate without inventing what it would say.
- Read the entry tally carefully / about 10 minutes
- Trace the repeated promise / about 15 minutes
- Compare scope before claiming conflict / about 15 minutes
Fun fact: Historians can compare documents with photographs, objects and maps. Different evidence can help answer different parts of a question. Source
S3U / Archive Detectives / Journal 3 of 4
Count observations, not copies
Fictional B: caretaker's entry tally for the reading room, May 3, 1958, 10-noon: "18 entries; repeat entries counted again; tally stopped at noon." Fictional D: May 6 newsletter quotes manager's notice A: "More room for everyone." C is the visitor's letter on journal 2; reread its exact place and time.
| Claim to examine | Supported, unsupported or uncertain? Why? |
|---|---|
| B counts 18 different people. | |
| C establishes every seat was occupied. | |
| D independently proves A's promise. | |
| B and C necessarily contradict each other. |
Write one carefully limited statement using B or C. What is missing before I can claim a full-day visitor total?
What additional record could test a question? Explain how it would help, without inventing its contents.
Session 4 / about 40 minutes
Write an account the evidence can carry
Goal: Revise a short historical account with source references, explicit uncertainty and an explained change.
Preparation / about 8 minutes of adult support: Bring the three earlier journals, journal 4, the first account and a new sheet. A private spoken explanation or labeled table is valid. Keep both versions.
Use the question, then a claim, then specific evidence, then its limit. Refer to source IDs so another reader can check the words. Distinguish an advertised plan from an observation and one person's report from a whole community. Revisit your first account. Add what the new records support and qualify anything they cannot establish. You need not choose between "everything is certain" and "we know nothing." An honest account can say something useful and still leave a question open.
Test a sentence beginning "everyone always." Which record would have to cover everyone and every relevant time? Try a narrower statement whose scope matches the actual evidence.
- Draft a sourced reading-room account / about 15 minutes
- Check and revise one claim / about 15 minutes
- Explain what remains uncertain / about 10 minutes
Fun fact: Asking what another source might add is part of document analysis. A well-supported unanswered question can be a useful result of an investigation. Source
S3U / Archive Detectives / Journal 4 of 4
My account and its limits
Question: what do the records tell us about the reading room and its reopening, and what remains uncertain? On a separate sheet, write 5-8 sentences or make an equivalent spoken or labeled-table account. Use at least two of A-D, an event/date pair and an explicit limit. Keep the first version.
| Evidence to keep | My note |
|---|---|
| One claim and its source IDs | |
| What the records cannot establish | |
| An evidence-based revision | |
| A useful next source or question |
Why does my revised claim fit the scope of the records better than my first account?
Explain the account privately or rehearse it. What could new evidence change, and what would I check first?
What changed in your explanation?
Show your evidence, explain one revision, and choose a question to investigate next. You can keep everything on paper.
Optional: record actual offline learning in Learning Records. Keep reported minutes separate from website time. For an assigned pack, use your existing daily tasks; this page does not award additional completion credit.