How to Use a KWL Chart Before, During, and After Reading

The K column is not a quiz and should not be graded for perfect accuracy. It is a snapshot of what the learner currently believes, remembers, or associates with the topic. The W column is not a list of generic wishes such as I want to know more. It should contain questions specific enough to guide attention. The L column is not a copy box for facts from the final paragraph; it is where the learner records important learning, answers earlier questions, and revises ideas that changed.

Start with a precise topic. Rainforests is broad; How tropical rainforests recycle water gives the learner a clearer target. Ask for a few things the learner already knows or thinks they know that could help make sense of the reading. Encourage labels such as sure, think, or not sure if confidence matters. That small distinction makes it easier to correct prior knowledge later without treating an early misconception as a failure.

Do not spend so long brainstorming K that the activity replaces the reading. Record a compact set of relevant entries—enough to establish a starting point without turning prior-knowledge activation into the main task. For group work, have students write privately before sharing. Independent thinking reduces the chance that the first confident speaker supplies the entire class's K column and makes everyone else's prior knowledge invisible.

The W column becomes useful when entries are specific enough to be answered. I want to learn about volcanoes does not tell the reader what to notice. What makes some eruptions explosive? and How do scientists monitor a volcano before an eruption? create targets. Texas A&M frames this step as setting a purpose for reading, which is a better mental model than treating W as a decorative middle column.

If students struggle to generate questions, preview headings, diagrams, captions, or the first paragraph, then write questions prompted by that preview. ReadWriteThink's KWL graphic organizer explicitly includes a preview stage before reading. The questions do not need to predict everything the source will cover; they need to give the learner a reason to look for relationships, explanations, definitions, or evidence.

Keep the KWL sheet beside the text instead of underneath a stack of papers. When a W question is answered, mark it lightly or add a short note rather than writing the full L response immediately. When a new question emerges, add it to W. When the text contradicts something in K, put a small question mark or correction arrow beside the original statement so the change remains visible.

This during-reading pass turns the sheet into a monitoring tool. A learner who reaches the midpoint with no answered questions and no new questions has useful information: perhaps the source is not relevant to the inquiry, perhaps the questions are too broad, or perhaps comprehension has broken down. The chart can prompt a reread, a vocabulary check, or a decision to consult another source rather than simply producing an empty L column at the end.

Complete L with the source closed or partly covered if possible. Start by answering the strongest W questions in the learner's own words. Then add important ideas that were not anticipated. Return to K and identify statements that were confirmed, refined, or contradicted. A useful final KWL sheet should show movement in understanding, not three unrelated lists.

Facing History describes KWL as a way to organize information before, during, and after a lesson, while Britannica highlights summarization and metacognition as part of the strategy. Those benefits require reflection. Ask: What changed in my thinking? Which question remains unanswered? Which idea could I now explain to someone else? That final comparison is more valuable than copying six facts into L because the boxes need to look full.

Suppose the topic is Why volcanoes erupt. Before reading, K might contain: Volcanoes contain hot melted rock; eruptions can release ash; some volcanoes are dormant. One entry could be marked unsure: Pressure builds inside every volcano in the same way. W could include: What creates the pressure? Why are some eruptions explosive? Can scientists tell when an eruption is likely? These questions are specific enough to guide attention.

During reading, the learner discovers that magma contains dissolved gases and that pressure changes can allow gases to expand. A diagram raises a new question about magma viscosity, so that question is added to W. After reading, L does not merely say Magma has gas. A stronger entry is: As magma rises and surrounding pressure drops, dissolved gases can come out of solution and expand; if the magma is viscous enough to trap those gases, pressure can build and contribute to explosive behavior. The learner then revisits the unsure K statement and revises it instead of silently abandoning it.

The point of the example is the movement: prior belief → targeted question → evidence → revised explanation. If the finished chart cannot show that movement, the learner may have used the page as three separate note boxes rather than a before-during-after strategy.

For a short lesson, keep the chart compact: a small set of K entries, focused W questions, and a short L reflection. For a textbook chapter, let W questions map to section headings and add L notes after major sections instead of waiting until the end. For a research project, keep unanswered W questions active across multiple sources and note which source resolved each one in the research notes rather than squeezing citations into the KWL page itself.

For independent study, the chart can also act as a readiness check. If K is empty because the topic is genuinely new, that is not a problem; preview the material and build initial questions. If W is empty after previewing, the learner may need a stronger purpose. If L repeats wording from the source, cover the source and try again in plain language. The template should adapt to the learning task rather than forcing every use case into the same number of entries.

Use standard KWL when the goal is prior knowledge → questions → learning. A lined version supports longer responses; a guided version can turn the labels into prompts such as What do I think I know? and What changed in my thinking? Younger learners may benefit from a picture-and-words layout that reduces writing load without removing the before-and-after reasoning.

Add a column only when it solves a real problem. KWLQ adds Questions Remaining; KWHL adds How will I find out? for research planning. Otherwise, the three-column chart is clearer. The current free download is the standard lined KWL; expanded formats should remain separate.

KWL is strongest when prior knowledge and inquiry matter. It is less useful for tasks where the central challenge is showing event order, comparing two subjects, mapping cause and effect, or developing one vocabulary concept in depth. In those cases, the three KWL columns can hide the relationship the learner actually needs to see.

Choose a sequence organizer for chronology, a Venn diagram for shared and unique traits, a cause-and-effect organizer for causal reasoning, or a Frayer model for a concept that needs characteristics, examples, and non-examples. Using a different organizer is not abandoning KWL; it is matching the visual structure to the thinking task, which is the same principle that makes any graphic organizer useful.

Mistake one is correcting K immediately. Instead, preserve questionable ideas and revisit them after learning so conceptual change is visible. Mistake two is filling W with vague phrases. Turn each phrase into a question that the learner could recognize as answered. Mistake three is completing all three columns at the same time after the reading. That removes the before-and-after comparison that gives KWL much of its value.

Mistake four is grading the number of entries. A learner can write eight trivial facts and learn less than a learner who revises one important misconception. Mistake five is treating unanswered W questions as incomplete work. Some unanswered questions are the most valuable output because they identify what the current source did not explain and point toward the next reading or research step.