Common Core ELAGrades 11–12Reading: Informational

RI.11-12.3: How People, Ideas and Events Interact

Also written as CCSS.ELA-LITERACY.RI.11-12.3 · Cluster: Key Ideas and Details.

The Official Wording

Analyze a complex set of ideas or sequence of events and explain how specific individuals, ideas, or events interact and develop over the course of the text.

Common Core State Standards, Grades 11-12, Reading: Informational Text · Read it at the source · Checked October 14, 2026

What RI.11-12.3 Means in Plain English

Juniors and seniors follow a complex chain of people, ideas and events and explain how each one changes the others as the account unfolds. In the story of how smallpox ended, a vaccine shortage in Nigeria produced an idea that reshaped a worldwide campaign.

Ninth and tenth grade (RI.9-10.3) analyzed how an author orders and connects a series of points. Grades 11-12 ask how the people, ideas and events themselves act on one another. This is the last band of the line, the analysis expected of readers ready for college and careers.

RI.11-12.3 I Can Statements

I can map the people, ideas and events in a complex account.
I can explain how an event changed what someone thought or did.
I can trace how one idea develops from the opening to the close.

RI.11-12.3 Worked Example

The weak answer retells the events in order, and the strong one shows each link pulling the next one along.

Read the Story

In 1967 the World Health Organization launched a new campaign to wipe out smallpox, a disease that was still killing an estimated two million people a year. The plan was mass vaccination: reach at least 80 percent of the people in every country where the disease spread.In eastern Nigeria in late 1966, before that plan was fully under way, an American doctor named William Foege faced an outbreak with too little vaccine to go around. Instead of vaccinating whole regions, he organized searches to find every new case, then vaccinated only the people around each sick person.The outbreak stopped, even though only a small share of the population had been vaccinated.Foege’s method, later called surveillance and containment, turned a shortage into a strategy. Over the next decade it replaced mass vaccination as the heart of the campaign, and health workers chased the virus village by village into its last refuge, the Horn of Africa.In October 1977, a hospital cook in Merca, Somalia, named Ali Maow Maalin became the last person known to catch smallpox naturally. He recovered and later worked in the campaign against polio, and in 1980 the World Health Organization declared smallpox gone.

A short passage written for this page.

Question: How do the people, ideas and events in this passage interact and develop from its opening to its close?

Not Yet“In 1967 the WHO started a campaign. Then Foege stopped an outbreak in Nigeria. Then the last case was in Somalia in 1977, and smallpox was declared gone in 1980.”Every event is correct and in order, but the answer never says how one shaped another. It misses that a shortage produced Foege’s idea and that his idea overturned the campaign’s own plan.

Meets the Standard“The account opens with an idea, mass vaccination, that depends on plenty of vaccine. An event, the shortage in Nigeria, forces one person, Foege, to try the opposite: find the cases and vaccinate only around them. That idea works, so it grows from one doctor’s improvisation into the campaign’s main method and changes how workers move, case by case instead of country by country. The last person in the chain, Maalin, shows how far the story develops: the final patient becomes a worker in the next campaign to end a disease.”It names the opening idea, the event that challenged it and the person who answered, then follows the new idea as it grows, and it reads the ending as development rather than a closing date.

Question Stems to Use

What idea does the account open with? What later event puts pressure on it?Who responds to that event, and what new idea comes out of the response?How does that idea change between its first appearance and the end of the text?Which link in the chain, if removed, would change everything after it?Why might the author close with the last patient’s later work instead of a date alone?

Common Mistakes with RI.11-12.3

Retelling instead of connecting

“First the campaign started, then Foege stopped an outbreak, then smallpox ended.”

Try this: Ban the word then for one draft, and require because, so, which led to or in response between every pair of events.

Treating ideas as fixed

“Foege had the idea of surveillance and containment, and it worked.”

Try this: Ask students to describe the idea at its first appearance and at the end, and to name what changed it in between.

Leaving the people out

An answer that tracks the disease and the campaign but never mentions Foege or Maalin

Try this: Have students list every named person and write one sentence on what that person changed or what changed that person.

Where RI.11-12.3 Fits

Comes BeforeRI.9-10.3Analyze how an author orders, introduces and connects a series of ideas or events.

AlongsideRH.11-12.3Weigh explanations for a historical event and judge which one the evidence supports best.RL.11-12.3Analyze how an author’s choices about setting, order and character shape a story.

Comes NextW.11-12.7Research a question and synthesize several sources into one account of how events unfolded.

Practice RI.11-12.3

Quick Check

What event forced Foege to change the plan?
An outbreak in eastern Nigeria in late 1966, when there was too little vaccine to vaccinate everyone.
How did Foege’s idea develop over the course of the passage?
It began as one doctor’s response to a shortage, worked in Nigeria, and grew into the main method of the worldwide campaign.
Why does the passage’s ending show development and not just a conclusion?
Maalin, the last person known to catch smallpox naturally, went on to work in the campaign against polio, so the story continues through him.

RI.11-12.3: Other Names

RI.11-12.3CCSS.ELA-LITERACY.RI.11-12.3