Determining importance means deciding which information carries the greatest weight for understanding a text and which information mainly supports, illustrates or decorates the central ideas.
This SETC guide explains importance, relevance, main ideas, major and minor details, evidence, examples, headings, text structure, author signals, summaries, note-taking, examination questions and the difference between what is interesting and what is important.
The governing rule is importance depends on purpose and structure. A detail can be essential for one question and expendable for another.
What is Determining Importance?
Determining importance is the process of ranking information according to how much it contributes to the reader’s current purpose, the author’s central message and the structure of the text.
Determining Importance is best treated as an operating reading skill. The learner needs to recognise the situation that calls for it, use evidence to guide the action, monitor whether understanding improves and stop when the goal has been met. This prevents the strategy from becoming a ritual that looks active without improving comprehension.
Why determining importance matters
Without importance judgments, readers either remember too little or try to remember everything. Strong comprehension requires a hierarchy of claims, support, definitions, examples and lower-value detail.
The deepest value of determining importance is transfer. It should remain available when the topic, genre, vocabulary and question wording change. SETC therefore teaches the skill through explicit modelling first, then delayed retrieval, interleaving and independent use.
What determining importance is not
- highlighting everything interesting
- choosing only the first sentence
- treating all facts equally
- assuming numbers are automatically important
- discarding examples that carry essential evidence
- confusing personal interest with textual importance
These distinctions protect the learner from surface imitation. The action counts only when it produces a more accurate, efficient or coherent mental model of the text.
The operating cycle
- Clarify the reading purpose.
- Notice the cue that makes the strategy relevant.
- Choose the smallest useful action.
- Use textual evidence and relevant knowledge.
- Check whether understanding improved.
- Revise or stop based on the result.
Purpose-dependent importance
What matters depends partly on the task. A detail unimportant to a summary may be crucial to an evidence question.
For diagnosis, ask the learner to explain what would count as success in purpose-dependent importance. If the learner cannot name the standard, the move is likely to become mechanical. If the learner knows the rule but cannot use it on fresh text, the problem is transfer rather than definition. If the learner succeeds only with prompts, the next target is independent selection.
For deliberate practice, use a short unfamiliar passage and require one evidence-based decision connected to purpose-dependent importance. The learner should point to the exact word, phrase, sentence, structure or relevant knowledge that justifies the choice. After feedback, retest the same reading decision on a different topic so memory for the first example cannot carry the answer.
For transfer, mix purpose-dependent importance with vocabulary, inference, main-idea, structure and evidence questions. Real reading rarely announces which strategy is required. The reader must decide which process will reduce uncertainty most efficiently while preserving the wider meaning of the passage.
Main ideas
Main ideas organise major details and usually deserve high priority in memory and notes.
For diagnosis, ask the learner to explain what would count as success in main ideas. If the learner cannot name the standard, the move is likely to become mechanical. If the learner knows the rule but cannot use it on fresh text, the problem is transfer rather than definition. If the learner succeeds only with prompts, the next target is independent selection.
For deliberate practice, use a short unfamiliar passage and require one evidence-based decision connected to main ideas. The learner should point to the exact word, phrase, sentence, structure or relevant knowledge that justifies the choice. After feedback, retest the same reading decision on a different topic so memory for the first example cannot carry the answer.
For transfer, mix main ideas with vocabulary, inference, main-idea, structure and evidence questions. Real reading rarely announces which strategy is required. The reader must decide which process will reduce uncertainty most efficiently while preserving the wider meaning of the passage.
Major supporting details
Major details directly develop, prove or explain the main idea.
For diagnosis, ask the learner to explain what would count as success in major supporting details. If the learner cannot name the standard, the move is likely to become mechanical. If the learner knows the rule but cannot use it on fresh text, the problem is transfer rather than definition. If the learner succeeds only with prompts, the next target is independent selection.
For deliberate practice, use a short unfamiliar passage and require one evidence-based decision connected to major supporting details. The learner should point to the exact word, phrase, sentence, structure or relevant knowledge that justifies the choice. After feedback, retest the same reading decision on a different topic so memory for the first example cannot carry the answer.
For transfer, mix major supporting details with vocabulary, inference, main-idea, structure and evidence questions. Real reading rarely announces which strategy is required. The reader must decide which process will reduce uncertainty most efficiently while preserving the wider meaning of the passage.
Minor details
Minor details illustrate or specify without carrying the main structural load.
For diagnosis, ask the learner to explain what would count as success in minor details. If the learner cannot name the standard, the move is likely to become mechanical. If the learner knows the rule but cannot use it on fresh text, the problem is transfer rather than definition. If the learner succeeds only with prompts, the next target is independent selection.
For deliberate practice, use a short unfamiliar passage and require one evidence-based decision connected to minor details. The learner should point to the exact word, phrase, sentence, structure or relevant knowledge that justifies the choice. After feedback, retest the same reading decision on a different topic so memory for the first example cannot carry the answer.
For transfer, mix minor details with vocabulary, inference, main-idea, structure and evidence questions. Real reading rarely announces which strategy is required. The reader must decide which process will reduce uncertainty most efficiently while preserving the wider meaning of the passage.
Definitions
A definition can be essential when later reasoning depends on the term.
For diagnosis, ask the learner to explain what would count as success in definitions. If the learner cannot name the standard, the move is likely to become mechanical. If the learner knows the rule but cannot use it on fresh text, the problem is transfer rather than definition. If the learner succeeds only with prompts, the next target is independent selection.
For deliberate practice, use a short unfamiliar passage and require one evidence-based decision connected to definitions. The learner should point to the exact word, phrase, sentence, structure or relevant knowledge that justifies the choice. After feedback, retest the same reading decision on a different topic so memory for the first example cannot carry the answer.
For transfer, mix definitions with vocabulary, inference, main-idea, structure and evidence questions. Real reading rarely announces which strategy is required. The reader must decide which process will reduce uncertainty most efficiently while preserving the wider meaning of the passage.
Evidence
Evidence becomes important when a claim depends on it, but not every statistic has equal force.
For diagnosis, ask the learner to explain what would count as success in evidence. If the learner cannot name the standard, the move is likely to become mechanical. If the learner knows the rule but cannot use it on fresh text, the problem is transfer rather than definition. If the learner succeeds only with prompts, the next target is independent selection.
For deliberate practice, use a short unfamiliar passage and require one evidence-based decision connected to evidence. The learner should point to the exact word, phrase, sentence, structure or relevant knowledge that justifies the choice. After feedback, retest the same reading decision on a different topic so memory for the first example cannot carry the answer.
For transfer, mix evidence with vocabulary, inference, main-idea, structure and evidence questions. Real reading rarely announces which strategy is required. The reader must decide which process will reduce uncertainty most efficiently while preserving the wider meaning of the passage.
Examples
Examples can be expendable illustrations or decisive demonstrations depending on the text.
For diagnosis, ask the learner to explain what would count as success in examples. If the learner cannot name the standard, the move is likely to become mechanical. If the learner knows the rule but cannot use it on fresh text, the problem is transfer rather than definition. If the learner succeeds only with prompts, the next target is independent selection.
For deliberate practice, use a short unfamiliar passage and require one evidence-based decision connected to examples. The learner should point to the exact word, phrase, sentence, structure or relevant knowledge that justifies the choice. After feedback, retest the same reading decision on a different topic so memory for the first example cannot carry the answer.
For transfer, mix examples with vocabulary, inference, main-idea, structure and evidence questions. Real reading rarely announces which strategy is required. The reader must decide which process will reduce uncertainty most efficiently while preserving the wider meaning of the passage.
Headings and titles
Headings signal hierarchy and help readers predict what belongs under larger categories.
For diagnosis, ask the learner to explain what would count as success in headings and titles. If the learner cannot name the standard, the move is likely to become mechanical. If the learner knows the rule but cannot use it on fresh text, the problem is transfer rather than definition. If the learner succeeds only with prompts, the next target is independent selection.
For deliberate practice, use a short unfamiliar passage and require one evidence-based decision connected to headings and titles. The learner should point to the exact word, phrase, sentence, structure or relevant knowledge that justifies the choice. After feedback, retest the same reading decision on a different topic so memory for the first example cannot carry the answer.
For transfer, mix headings and titles with vocabulary, inference, main-idea, structure and evidence questions. Real reading rarely announces which strategy is required. The reader must decide which process will reduce uncertainty most efficiently while preserving the wider meaning of the passage.
Repeated concepts
Repetition can indicate importance when a concept recurs across sections.
For diagnosis, ask the learner to explain what would count as success in repeated concepts. If the learner cannot name the standard, the move is likely to become mechanical. If the learner knows the rule but cannot use it on fresh text, the problem is transfer rather than definition. If the learner succeeds only with prompts, the next target is independent selection.
For deliberate practice, use a short unfamiliar passage and require one evidence-based decision connected to repeated concepts. The learner should point to the exact word, phrase, sentence, structure or relevant knowledge that justifies the choice. After feedback, retest the same reading decision on a different topic so memory for the first example cannot carry the answer.
For transfer, mix repeated concepts with vocabulary, inference, main-idea, structure and evidence questions. Real reading rarely announces which strategy is required. The reader must decide which process will reduce uncertainty most efficiently while preserving the wider meaning of the passage.
Author signals
Phrases such as most importantly, however and in contrast can signal hierarchy or shifts.
For diagnosis, ask the learner to explain what would count as success in author signals. If the learner cannot name the standard, the move is likely to become mechanical. If the learner knows the rule but cannot use it on fresh text, the problem is transfer rather than definition. If the learner succeeds only with prompts, the next target is independent selection.
For deliberate practice, use a short unfamiliar passage and require one evidence-based decision connected to author signals. The learner should point to the exact word, phrase, sentence, structure or relevant knowledge that justifies the choice. After feedback, retest the same reading decision on a different topic so memory for the first example cannot carry the answer.
For transfer, mix author signals with vocabulary, inference, main-idea, structure and evidence questions. Real reading rarely announces which strategy is required. The reader must decide which process will reduce uncertainty most efficiently while preserving the wider meaning of the passage.
Text structure
Cause-effect, problem-solution, comparison and sequence change what counts as a major relationship.
For diagnosis, ask the learner to explain what would count as success in text structure. If the learner cannot name the standard, the move is likely to become mechanical. If the learner knows the rule but cannot use it on fresh text, the problem is transfer rather than definition. If the learner succeeds only with prompts, the next target is independent selection.
For deliberate practice, use a short unfamiliar passage and require one evidence-based decision connected to text structure. The learner should point to the exact word, phrase, sentence, structure or relevant knowledge that justifies the choice. After feedback, retest the same reading decision on a different topic so memory for the first example cannot carry the answer.
For transfer, mix text structure with vocabulary, inference, main-idea, structure and evidence questions. Real reading rarely announces which strategy is required. The reader must decide which process will reduce uncertainty most efficiently while preserving the wider meaning of the passage.
Narrative importance
Turning points, goals, conflicts and outcomes often matter more than routine action.
For diagnosis, ask the learner to explain what would count as success in narrative importance. If the learner cannot name the standard, the move is likely to become mechanical. If the learner knows the rule but cannot use it on fresh text, the problem is transfer rather than definition. If the learner succeeds only with prompts, the next target is independent selection.
For deliberate practice, use a short unfamiliar passage and require one evidence-based decision connected to narrative importance. The learner should point to the exact word, phrase, sentence, structure or relevant knowledge that justifies the choice. After feedback, retest the same reading decision on a different topic so memory for the first example cannot carry the answer.
For transfer, mix narrative importance with vocabulary, inference, main-idea, structure and evidence questions. Real reading rarely announces which strategy is required. The reader must decide which process will reduce uncertainty most efficiently while preserving the wider meaning of the passage.
Nonfiction importance
Central concepts, mechanisms, claims and qualifications often outrank illustrative detail.
For diagnosis, ask the learner to explain what would count as success in nonfiction importance. If the learner cannot name the standard, the move is likely to become mechanical. If the learner knows the rule but cannot use it on fresh text, the problem is transfer rather than definition. If the learner succeeds only with prompts, the next target is independent selection.
For deliberate practice, use a short unfamiliar passage and require one evidence-based decision connected to nonfiction importance. The learner should point to the exact word, phrase, sentence, structure or relevant knowledge that justifies the choice. After feedback, retest the same reading decision on a different topic so memory for the first example cannot carry the answer.
For transfer, mix nonfiction importance with vocabulary, inference, main-idea, structure and evidence questions. Real reading rarely announces which strategy is required. The reader must decide which process will reduce uncertainty most efficiently while preserving the wider meaning of the passage.
Importance for summary
Summaries require aggressive selection while preserving central meaning.
For diagnosis, ask the learner to explain what would count as success in importance for summary. If the learner cannot name the standard, the move is likely to become mechanical. If the learner knows the rule but cannot use it on fresh text, the problem is transfer rather than definition. If the learner succeeds only with prompts, the next target is independent selection.
For deliberate practice, use a short unfamiliar passage and require one evidence-based decision connected to importance for summary. The learner should point to the exact word, phrase, sentence, structure or relevant knowledge that justifies the choice. After feedback, retest the same reading decision on a different topic so memory for the first example cannot carry the answer.
For transfer, mix importance for summary with vocabulary, inference, main-idea, structure and evidence questions. Real reading rarely announces which strategy is required. The reader must decide which process will reduce uncertainty most efficiently while preserving the wider meaning of the passage.
Importance for notes
Useful notes preserve hierarchy so future retrieval does not require rereading everything.
For diagnosis, ask the learner to explain what would count as success in importance for notes. If the learner cannot name the standard, the move is likely to become mechanical. If the learner knows the rule but cannot use it on fresh text, the problem is transfer rather than definition. If the learner succeeds only with prompts, the next target is independent selection.
For deliberate practice, use a short unfamiliar passage and require one evidence-based decision connected to importance for notes. The learner should point to the exact word, phrase, sentence, structure or relevant knowledge that justifies the choice. After feedback, retest the same reading decision on a different topic so memory for the first example cannot carry the answer.
For transfer, mix importance for notes with vocabulary, inference, main-idea, structure and evidence questions. Real reading rarely announces which strategy is required. The reader must decide which process will reduce uncertainty most efficiently while preserving the wider meaning of the passage.
Importance and memory
Attention spent on high-value information improves retrieval of useful structure.
For diagnosis, ask the learner to explain what would count as success in importance and memory. If the learner cannot name the standard, the move is likely to become mechanical. If the learner knows the rule but cannot use it on fresh text, the problem is transfer rather than definition. If the learner succeeds only with prompts, the next target is independent selection.
For deliberate practice, use a short unfamiliar passage and require one evidence-based decision connected to importance and memory. The learner should point to the exact word, phrase, sentence, structure or relevant knowledge that justifies the choice. After feedback, retest the same reading decision on a different topic so memory for the first example cannot carry the answer.
For transfer, mix importance and memory with vocabulary, inference, main-idea, structure and evidence questions. Real reading rarely announces which strategy is required. The reader must decide which process will reduce uncertainty most efficiently while preserving the wider meaning of the passage.
Importance and questions
Question wording changes which information deserves priority.
For diagnosis, ask the learner to explain what would count as success in importance and questions. If the learner cannot name the standard, the move is likely to become mechanical. If the learner knows the rule but cannot use it on fresh text, the problem is transfer rather than definition. If the learner succeeds only with prompts, the next target is independent selection.
For deliberate practice, use a short unfamiliar passage and require one evidence-based decision connected to importance and questions. The learner should point to the exact word, phrase, sentence, structure or relevant knowledge that justifies the choice. After feedback, retest the same reading decision on a different topic so memory for the first example cannot carry the answer.
For transfer, mix importance and questions with vocabulary, inference, main-idea, structure and evidence questions. Real reading rarely announces which strategy is required. The reader must decide which process will reduce uncertainty most efficiently while preserving the wider meaning of the passage.
Importance under time pressure
Timed reading requires triage rather than equal processing of every sentence.
For diagnosis, ask the learner to explain what would count as success in importance under time pressure. If the learner cannot name the standard, the move is likely to become mechanical. If the learner knows the rule but cannot use it on fresh text, the problem is transfer rather than definition. If the learner succeeds only with prompts, the next target is independent selection.
For deliberate practice, use a short unfamiliar passage and require one evidence-based decision connected to importance under time pressure. The learner should point to the exact word, phrase, sentence, structure or relevant knowledge that justifies the choice. After feedback, retest the same reading decision on a different topic so memory for the first example cannot carry the answer.
For transfer, mix importance under time pressure with vocabulary, inference, main-idea, structure and evidence questions. Real reading rarely announces which strategy is required. The reader must decide which process will reduce uncertainty most efficiently while preserving the wider meaning of the passage.
Common failure patterns
- highlighting too much
- choosing vivid but minor facts
- ignoring qualifications
- treating every statistic as central
- discarding decisive examples
- missing task purpose
- remembering detail without hierarchy
- confusing frequency with importance
The final wrong answer is only the visible end of the problem. Effective teaching identifies the first failed decision in the chain, repairs that decision and then retests it in fresh text.
Worked example: Maren
Maren’s notes contain every date, example and number but she cannot explain what the section is mainly arguing. Her tutor limits each paragraph to one gist and two major supports.
Maren is asked to explain the cue, the decision, the evidence and the check. This makes the invisible reading process inspectable. Once the reasoning is stable, the visible scaffold is reduced so that the learner can perform the same operation independently and more quickly.
Worked example: Iona
Iona chooses the most dramatic detail as the most important. Her tutor asks what happens if that sentence disappears. When the paragraph still works, she sees that vividness and structural importance differ.
Iona is asked to explain the cue, the decision, the evidence and the check. This makes the invisible reading process inspectable. Once the reasoning is stable, the visible scaffold is reduced so that the learner can perform the same operation independently and more quickly.
Worked example: Leonie
Leonie reads every sentence at the same speed in timed comprehension. She learns to use headings, question scope and paragraph gists to decide where close reading is worth the time.
Leonie is asked to explain the cue, the decision, the evidence and the check. This makes the invisible reading process inspectable. Once the reasoning is stable, the visible scaffold is reduced so that the learner can perform the same operation independently and more quickly.
A six-stage practice ladder
Stage one is teacher modelling with a think-aloud. Stage two is guided practice with prompts. Stage three requires the learner to explain the rule before acting. Stage four removes prompts and uses fresh passages. Stage five mixes the target skill with neighbouring comprehension demands. Stage six tests delayed transfer under realistic time limits.
Immediate repetition can create an illusion of mastery because the previous example remains active in working memory. Delayed practice is more revealing. The learner should be able to reconstruct the trigger, action and verification rule without reopening notes.
Error logs and correction loops
Keep a compact error log for determining importance. Record the first failed reading decision rather than only the question number: weak evidence selection, over-broad scope, ignored contrast, unsupported prior knowledge, poor monitoring, or an inefficient recovery action. Patterns across several tasks reveal the repair with the highest leverage.
Every correction should end with a fresh retest. Fixing the original passage shows that feedback was followed; solving a new passage shows that learning transferred.
Retrieval, spacing and interleaving
Revisit determining importance across several days in short sessions. Ask the learner to recall when the strategy is useful, which cue activates it, what error commonly appears and how to verify the result. Then mix the skill with other reading problems so selection becomes part of comprehension rather than a labelled exercise.
Spacing strengthens availability after a delay. Interleaving strengthens choice when several plausible strategies compete for attention.
Cross-curricular transfer
Determining Importance supports reading in Science, Humanities, Mathematics word problems, project research and digital information environments. The content changes, but the reader still needs to recognise structure, integrate language with knowledge, select evidence and monitor the developing model.
A strategy becomes genuinely powerful when it travels with the reader instead of remaining trapped inside an English worksheet.
Primary and PSLE application
Primary learners can sort details into essential, helpful and extra, always explaining what the main idea would lose if a detail were removed.
At this stage, examples should remain concrete and the learner should often point to exact words or events. Oral explanation is useful because it reveals whether the child understands why the strategy works.
Secondary and SEC application
Secondary learners should rank claims, evidence, examples, qualifications and structural relationships across multi-paragraph texts.
Secondary texts contain denser sentences, implicit relationships and competing viewpoints. Practice should therefore include narrative, informational, argumentative and subject-based texts.
JC, IGCSE and advanced application
Advanced readers should determine importance relative to argument, source purpose and research questions, preserving decisive qualifications rather than only headline claims.
Advanced readers also need calibration: how strongly does the text support this interpretation, what alternative remains possible, and is the strategy still worth the time it consumes?
Teacher diagnosis
A short think-aloud often reveals more than another full paper. Ask the learner to read a difficult span and verbalise what is noticed, expected, confusing and chosen. This reveals whether weakness in determining importance lies in knowledge, strategy selection, execution, monitoring or speed.
Feedback should preserve reader agency. Point to process and evidence rather than supplying the interpretation. The long-term goal is self-diagnosis.
Parent support
Useful home prompts are simple: What makes you think that? Which sentence matters most? What changed your mind? What would you check if you were unsure? Avoid turning every reading session into a test.
Parents can model revision openly. Saying I thought this at first, but the next sentence changed my mind makes evidence-based updating normal rather than embarrassing.
Exam-day use
Under time pressure, use the smallest effective version of determining importance. Protect accuracy but do not overwork low-value uncertainty. Verification should return to the line range, paragraph or relationship that controls the answer.
A useful stopping rule is: once the interpretation fits the relevant evidence, matches the question’s scope and does not require an unsupported story, answer and move on.
Measuring progress
Measure accuracy, independence, transfer and speed. Improvements may first appear as fewer unsupported answers, faster recovery, cleaner evidence selection or better paragraph gists before they appear as a large score increase.
Use fresh passages and delayed checks so progress reflects transferable comprehension rather than memory for a familiar text.
Frequently asked questions
Do I need to use this strategy on every passage?
No. Strong readers select strategies according to purpose, difficulty and evidence.
Can the strategy slow me down?
Yes if overused. Practice should make the useful version increasingly efficient.
How do I know whether my answer is evidence-based?
You should be able to point to the words, structure or relevant knowledge that supports the decision.
What if two interpretations are possible?
Compare evidence strength and preserve uncertainty when the text genuinely supports more than one.
Should I write the strategy steps during an exam?
Usually no. Visible steps are for learning; exam use should be compressed.
How can I improve transfer?
Use fresh topics, mixed genres, delayed practice and tasks that do not name the strategy.
Research and reference points
Reading Rockets’ comprehension guidance emphasises identifying main ideas, summarising and using text structure to focus attention on important information: Key Comprehension Strategies to Teach.
Continue through SETC
Continue with Main Idea and Supporting Details and Note-Taking from Reading.
The mastery target is a reader who can recognise when determining importance is useful, execute it with evidence, revise when necessary and carry the same control into unfamiliar texts without waiting for a teacher to name the strategy.