Tell primary sources from secondary sources and use both as evidence about the past

Learning goal: Explain that primary and secondary sources provide evidence to understand the past, tell the two kinds apart, and say what a source shows and what it cannot show. This lesson teaches a statement from Ohio's July 2026 K–8 social studies standards, which the Ohio Department of Education and Workforce anticipates districts will begin to implement in the 2027-28 school year.

For the adult: First graders already know that we can learn about yesterday by asking someone who was there. This lesson gives that idea two names. Keep every source concrete: something the children can hold, look at or hear read aloud. The sources in the model below are invented for practice and are labelled that way.

What is a source? A source is anything that gives us information. When we use a source to find out what happened, the information is called evidence. Evidence helps us understand the past because we were not there to see it ourselves. We ask the source a question, look closely and say what it shows.

Primary sources. A primary source was made at the time of the event, or by a person who was there. A photograph taken at a school picnic is a primary source about that picnic. A letter a grandparent wrote when they were a child is a primary source about that grandparent's childhood. A toy, a tool or a dish that people really used long ago is an artifact, and an artifact can be a primary source too. A primary source is like a witness: it was there.

Secondary sources. A secondary source was made later, by someone who was not there, using other sources to explain what happened. A library book written this year about farms long ago is a secondary source. A video a teacher makes today to explain how children lived one hundred years ago is a secondary source. A secondary source often puts many pieces of evidence together so we can understand the whole story more easily.

Read this to the children — Original story: The Old Lunch Pail.
Nora's class found a box in the school closet. Inside was a metal lunch pail with a name scratched on the lid. There was a photograph of children standing beside a small brick school. On the back someone had written, "Our class, first day of school." There was also a thin book from the library. It was called Schools Long Ago, and it was written by a writer who lived much later. Nora asked, "Which of these were really there?"

Working it out together. The lunch pail was used by a real child at the time, so it is a primary source. The photograph was taken on that first day, so it is a primary source. The library book was written much later by someone who was not there, so it is a secondary source. All three are evidence. Each helps us understand the past in a different way.

What each source can and cannot show. The photograph shows what the children wore and what the school looked like on that one day. It does not show what they ate, how they felt or what happened the next day. The lunch pail shows the kind of container a child carried. It does not tell us the child's age unless something written on it does. The book explains many schools long ago; it may not say anything about this one school. A good history detective says, "The source shows ___," and also, "The source does not tell us ___."

The misconception. Many children think primary means "better" or "true" and secondary means "worse" or "made up." That is not right. A primary source can be mistaken; a person who was there might remember something wrongly, and a photograph shows only what fit inside the picture. A secondary source can be very careful and helpful because its writer studied many primary sources. The two names tell us when and by whom a source was made, not whether it is good. We use both, and we check them against each other.

Another misconception: old means primary. An old-looking book is not automatically a primary source. If a writer who was not there made it many years after the event, it is secondary about that event, however old the book looks. Ask two questions: Was it made at the time of the event? Was the maker there? If the answer to both is no, it is not a primary source about that event; if its maker studied other sources to explain what happened, it is a secondary source. (A made-up story written later is not evidence about the event at all.) We always say which event we are asking about, because a source can be primary about one thing and secondary about another. If a person who was there tells or writes the story many years later, like a grandparent's memories, it can still be a primary source, but memories can fade over many years, so we check it against other sources.

A worked model inside the lesson. Question: "What did children carry their lunch in at Nora's old school?" Evidence one: the metal lunch pail, a primary source. Evidence two: the book says many children long ago carried lunch in metal pails or cloth bundles, a secondary source. Together the sources give a stronger answer: at least one child at this school used a metal pail, and the book says that was common. We still do not know what every child carried.

Worked example 1 — sort three sources. Question: which sources were made at the time? (a) A drawing Sam made on his first day of first grade: made at the time by someone who was there, so primary. (b) A poster the school librarian made this week telling the story of last spring's class trip, which she did not go on, using the class's photos and notes: made later by someone who was not there, so secondary. (If the teacher who went on the trip had made the poster, it would be a later account by someone who was there, and that can be a primary source too.) (c) A ticket stub from that class trip: an object from the event itself, so primary. Answer: (a) and (c) are primary; (b) is secondary.

Worked example 2 — say what a source shows and does not show. Source: a photograph of a family standing beside a wagon. Shows: the people, their clothes, the wagon, the ground outside. Does not show: where they were going, what the wagon carried inside, or the date, unless something is written on the photograph. A complete answer names one "shows" and one "does not tell us."

Worked example 3 — use two sources together. Question: "Did the old school have a bell?" A photograph (primary) shows a small tower on the school roof but no bell can be seen inside it. A book about the town (secondary) says, "The schoolhouse had a bell in its tower." Put them together: the photograph shows a tower where a bell could hang, but we cannot see a bell in it; the book says there was a bell. The photograph fits with the book but does not prove the bell was there, so our careful answer is: "The book says the school had a bell, and the photograph shows a tower where it could have hung." To be surer, we would look for another source, such as a photograph taken closer to the tower. We always say where each piece of evidence came from.

Representation task — the source sorting mat. The adult prepares two labelled trays: "Made at the time, or by someone who was there (primary)" and "Made later by someone who was not there (secondary)." Put in six real or teacher-made items, each with a card telling who made it and when: a class photo from the first week of school, a child's old drawing, a new picture book about long ago, a letter, a video made this year about the past, and an old tool. Children place each item, then say the rule they used out loud: "It was made at the time" or "It was made later by someone who was not there."

Independent performance: Each child chooses one primary source and one secondary source from the trays. For each, the child draws or dictates (1) what kind of source it is, (2) one thing it shows about the past, and (3) one thing it does not tell us.

Success criteria: The child sorts the source correctly using "made at the time," "made by someone who was there" or "made later by someone who was not there"; names one piece of evidence the source really shows; names one honest limit; and does not say that primary means true or secondary means false. An adult may scribe. Children who wish to use a family item may do so only if the family agrees; the classroom items are enough.