How can cause and effect be taught in informational texts?
Teaching cause and effect in informational reading involves more than finding “because.” Learners distinguish cause from outcome, locate the sentence explaining a connection and avoid inferring causation from mere sequence. A diagram based on a short text, followed by checking every arrow against the passage, makes the reasoning visible.
Finding a causal connection in text
1. Separate the topic sentence from the event chain If an informational text says that a lake level fell after rainfall decreased, first identify what changed and what the text presents as a possible cause. Highlight cause and outcome in two colors in a short paragraph. The heading alone may not explain every cause; read the supporting sentences. The order in which events are narrated need not be the causal order. A writer may announce the result first and explain a cause afterward. Have learners reconstruct the two ideas using “because” and “therefore” in either sentence order while keeping the relationship intact. 2. Treat connectives as clues, not proof Words equivalent to “because,” “as a result” and “therefore” are useful signposts. But “A happened and then B happened” does not by itself establish that A caused B. Compare an explicit causal explanation with a sentence reporting only sequence. Some writers explain a process across several sentences without a single obvious connective, so read the whole passage. Do not reduce instruction to coloring linking words. Ask how the author justifies each connection and whether the text states a certainty, a possibility or merely a temporal association. 3. Show multiple causes and outcomes A lake’s level may also depend on evaporation, water use or inflowing streams. Put in a cause-and-effect diagram what the passage actually mentions; label any outside inference separately. One cause can have several consequences, and one outcome can have several contributing causes. Instead of drawing a single arrow for every case, justify branches. This requires distinguishing a firm claim in the text from one framed as a possibility. Students should learn that a tidy diagram is useful only if it preserves the author’s qualifications and does not erase relevant alternatives.
Diagrams, text structure and transfer
4. Match every arrow back to a sentence Build a diagram such as less rainfall → less incoming water → lower lake level. Find the sentence that supports each arrow. If a link has no support, draw it as a tentative dotted arrow or note “not explained in this passage.” The diagram should aid comprehension, not manufacture a scientific claim absent from the text. Then ask the learner to retell the diagram as a paragraph. A pupil who draws the arrows correctly but cannot explain their relationship in words may still have an important gap in understanding. 5. Notice when another text structure dominates One text may explain the causes of drought while another compares changes in two lakes. The same key words may appear, but the dominant structure of the second passage could be comparison. Ask what each paragraph does: define an event, explain a reason or compare cases? Do not extend a causal claim in one part automatically to the whole text. If a graph accompanies the passage, read its title and units. Co-movement in a visual does not by itself establish the mechanism claimed in a causal explanation. 6. Explain a relationship in a new text Give a fresh short passage about a condition affecting plant growth. Ask for one cause, one outcome, the sentence connecting them and the writer’s degree of certainty. If the passage reports only that two things increased in the same period, a student should resist asserting causation. Diagnose whether a mistaken response arose from unfamiliar connectives, vocabulary or missing background knowledge. The aim is not to draw an arrow in every sentence. It is to explain relationships in informational reading with evidence and appropriate limits.