Integrate Two Texts is a free printable Grade 4 English worksheet on using two texts together to write about a subject, aligned to Common Core standard RI.4.9. It prints 2 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two pupils in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.
Set 1 of 25 · the same problems every time you open this link.
In 1928 Alexander Fleming went on holiday and left a stack of dishes on a bench. Each held a colony of bacteria.
When he came back, one dish had a spot of mould on it. Around the mould was a clear ring where the bacteria had died.
Fleming realised the mould was producing something that killed bacteria. He named it penicillin and published a paper. Almost nobody noticed.
Ten years later, Howard Florey and Ernst Chain read that paper and tried to make penicillin in quantity. That turned out to be the hard part: it took two thousand litres of mould fluid to treat one patient.
By 1944 the problem had been solved and penicillin was reaching soldiers in the field.
1. What did he see around the mould?
2.Now read Text 2 and answer these questions about BOTH texts.
Text 2: The Accidental Photograph
In 1895 Wilhelm Röntgen was working with a covered tube in a darkened room when he noticed a screen across the laboratory glowing.
Something was passing through the cover and crossing the room. He did not know what it was, so he called it X — the unknown.
He spent seven weeks alone in the laboratory testing it. He put wood, rubber and metal in the way. Metal stopped it; the rest did not.
Then he asked his wife to put her hand between the tube and a photographic plate. The picture showed the bones of her hand and her wedding ring.
Within a year, X-rays were being used in hospitals. Röntgen refused to patent them.
1. How is it different from the X-ray story?
2. How is this discovery like penicillin's?
3. How did the two discoveries differ in what happened next?
LessonPrint · RI.4.9 · Set 1 · free to copy for classroom use
Answer key — Integrate Two Texts
Set 1. Prints on its own sheet.
1.1. A clear ring where the bacteria had died.
2.1. Penicillin needed sixteen years and other scientists to become useful; X-rays were useful almost at once. 2. Both began with somebody noticing something unexpected that they had not set out to find. 3. X-rays reached hospitals within a year; penicillin took sixteen years and two more scientists.
Questions about Integrate Two Texts
What does the Integrate Two Texts worksheet cover?
It practises using two texts together to write about a subject — 2 questions for Grade 4, all on Common Core RI.4.9: Combine two texts on one topic to write about it properly. The instruction to pupils is “Read Text 1 and answer the question under it”, and the answer key follows on the next sheet.
Which Common Core standard does Integrate Two Texts practise?
CCSS.ELA-LITERACY.RI.4.9 — RI.4.9, in the Reading: Informational Text domain for Grade 4. The published standard reads: “Integrate information from two texts on the same topic in order to write or speak about the subject knowledgeably.” The worksheet assesses that standard rather than a paraphrase of it.
What age or grade is this worksheet for?
Integrate Two Texts is written for Grade 4, typically ages 9-10. It is one of the sheets on RI.4.9, so it suits any pupil working at that standard — including older pupils revisiting it and younger ones working ahead.
Does Integrate Two Texts come with an answer key?
Yes. All 2 answers are generated from the same problems as the questions, so the key cannot drift out of step with the sheet. It starts on a fresh sheet of paper, after the questions, so it is not handed out with the class by accident.
How many different versions of Integrate Two Texts can I print?
25 — one per pupil, and all 25 ask different questions. Set 1 downloads the whole class as a single PDF. Every version is fixed to its own address, so a sheet printed today holds the same problems when you reopen it next week.
Is Integrate Two Texts free to print and photocopy?
Yes. Integrate Two Texts, its answer key and its 25 versions are free to print and photocopy for your own class, with no account, no email capture and no subscription at the download step. Please do not resell them or republish them as your own.
Is there a lesson plan to teach RI.4.9?
Yes — “Integrating Information From Two Texts” is a 40-minute Grade 4 plan for RI.4.9, timed section by section, with the misconceptions to expect and an exit ticket. Integrate Two Texts is the practice that follows it.
More practice for RI.4.9
Combine two texts on one topic to write about it properly.