Write informative/explanatory texts to examine and convey complex ideas, concepts, and information clearly and accurately through the effective selection, organization, and analysis of content.
Common Core State Standards, Grades 11-12, Writing · Read it at the source · Checked October 14, 2026
What W.11-12.2 Means in Plain English
Seniors explain a complex process, like how a heat pump pulls warmth from winter air, in an order where each idea depends on the one before. They pick the most telling facts, define terms, use an analogy or figure where it helps, and close on why it matters.
Grades 9 to 10 (W.9-10.2) organize ideas to show connections and distinctions. Grades 11 to 12 ask for a build, each element resting on the last, plus varied syntax and an analogy or metaphor for the hardest idea. This last band is the college and career readiness goal for explanation.
W.11-12.2 I Can Statements
I can order ideas so each one builds on the one before.
I can choose the most significant facts for what my readers know.
I can use an analogy or metaphor to make a hard idea clear.
W.11-12.2 Worked Example
Same research notes, same word limit. One student listed facts about heat pumps; the other built an explanation a reader could follow.
Prompt
Explain to readers of the Brannock Valley co-op newsletter, most of whom heat with oil, how a heat pump can warm a house using outdoor air that is below freezing. Your notes: a refrigerant is a fluid that boils at very low temperatures; a compressor squeezes the refrigerant gas, which raises its temperature; an outdoor coil and an indoor coil are joined in one loop; a heat pump moves heat rather than making it, so in mild weather it delivers about three units of heat for every unit of electricity; that advantage shrinks as the outdoor air gets colder.
Not YetHeat pumps are an energy-efficient way to heat your home. They use a refrigerant and a compressor, and they can work even when it is cold out. They are about three times more efficient, which is why so many people are switching to them.Every fact comes from the notes, but the facts sit side by side instead of building: refrigerant and compressor appear with no definition and no job, so the reader never learns how freezing air can warm a house. “Three times more efficient” has nothing behind it, and the close is a trend, not what the topic means for an oil-heating reader.
Meets the StandardA heat pump is less a furnace than a delivery truck: it burns nothing and instead carries heat that is already outdoors into the house, which works even on a freezing day because air at 20 degrees Fahrenheit still holds heat. To collect that heat, the pump sends a refrigerant, a fluid that boils far below zero, through a coil outside. Because the refrigerant is colder than the winter air, it absorbs heat and boils into a gas, much as a cold glass draws warmth from your hand. A compressor then squeezes that gas into a smaller volume, which drives its temperature well above room temperature. The hot gas flows to a coil indoors, gives up its heat to the house and condenses back into a liquid, and the loop begins again. Because the electricity goes into moving heat rather than making it, the pump delivers about three units of heat for every unit of electricity in mild weather, an advantage that shrinks as the outdoor air gets colder. For a household burning oil, that is the point worth weighing: the house can be warmed by the same winter air its walls are built to keep out.Each sentence needs the one before it: the heat in cold air sets up the refrigerant, the boiling sets up the compressor, and the loop explains the three-to-one figure instead of asserting it. Terms are defined where they first do a job, the delivery truck metaphor and the cold glass simile manage the two hardest ideas, and the close states the significance for this audience.
Moves to Use
Order the ideas so each sentence needs the one before it.Define each technical term the first time it does a job.Keep the facts that explain the process; cut the ones that only decorate it.Use one analogy or metaphor where the idea is hardest.Close on what the explanation means for this particular reader.
Common Mistakes with W.11-12.2
A pile of facts, not a build
“Heat pumps use a refrigerant. They use a compressor. They are efficient.”
Try this: Have students test the order by cutting the paragraph into sentences and checking that each one needs the one before it.
Every fact from the notes
A paragraph on who invented refrigeration, inside an explanation of how the pump works
Try this: Ask students to highlight only the facts the explanation cannot work without, then cut the rest or move it to a note.
An analogy that explains nothing
“A heat pump is like magic for your house.”
Try this: Require every analogy to map onto one specific step of the process, then have a partner say which step it explains.
Why does the strong response say that cold air still holds heat before it introduces the refrigerant?
The refrigerant’s job is to collect that heat. Until the reader knows the heat is there, the next step has no reason to exist.
Which figurative comparisons does the strong response use, and what does each one clarify?
The delivery truck metaphor shows that the pump moves heat rather than making it; the cold glass simile shows why a colder refrigerant absorbs heat from the air.
What does the strong conclusion do that W.11-12.2f asks for?
It states the significance for this audience: a household burning oil could be heated by the same winter air its walls keep out.