Series route: This guide belongs to the complete PSLE Learner’s Guide volume directory. The original PSLE Learning Guide supplies the wider English, Mathematics and Science route, while PSLE Science provide verified subject-specific continuation.
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This volume solves one precise learner problem: the learner observes more paper clips at a bar magnet’s ends and concludes that only the ends are magnetic or that the centre can never attract a magnetic object. The aim is not to memorise a slogan. It is to understand the mechanism well enough to recognise the idea when the wording, numbers, diagram or context changes. A Primary 6 learner should be able to explain the decision, perform it under time pressure, and detect a tempting answer that only looks familiar.
- Understand the mechanism before memorising a form.
- Study the worked examples and compare near-misses.
- Repair common misconceptions with targeted tests.
- Complete graded independent practice before reading the answers.
- Use delayed transfer and examination control to make the skill durable.
- Use the parent and tutor notes only after the learner has attempted the work.
The problem beneath the mistake
Scatter identical iron paper clips and lower a bar magnet onto them. More clips usually gather near the two ends than near the middle.
The ends are the magnet’s north and south poles. In a bar magnet, magnetic effect is strongest near these regions.
Strongest does not mean only. A weaker attraction elsewhere may be harder to notice, especially if the test object is heavy or held too far away.
A fair comparison changes position along the same magnet while keeping the test object and distance consistent.
Counting attached clips is one possible indicator, but clips can link into chains and affect one another. Repeated trials and a consistent method improve the evidence.
A force meter or a standard number of identical clips can support a more controlled comparison. The method must be described before interpreting the result.
Magnetic strength is not judged by pole labels alone. North and south describe pole type; both poles can attract unmagnetised iron or steel.
Attraction and repulsion are different tests. Repulsion between known poles is the sure test that both objects are magnets, while attraction alone can involve a magnetic material.
Distance matters sharply. Testing the end in contact and the middle several centimetres away would confound position with separation.
The magnet’s orientation matters if gravity helps or opposes the test object. Compare positions under the same setup.
Do not cut, heat or strike a magnet for an informal test. Those changes can alter the magnet and add safety problems; diagrams and controlled classroom apparatus are sufficient.
The reliable routine is define the tested indicator, keep the object and distance fixed, compare several positions, repeat, identify the strongest regions, and limit the conclusion to relative strength.
Core decision: A bar magnet’s magnetic effect is concentrated most strongly near its north and south poles. Attraction can be weaker at other positions, so evidence that the poles attract more strongly does not prove that the rest of the magnet has no magnetic effect.
A useful rule has three parts: a trigger, an operation and a check. The trigger tells you when the rule applies. The operation tells you what to do. The check tells you whether the result still matches the meaning of the question. Learners who remember only the operation often apply it in the wrong place; learners who remember only an example often freeze when the surface details change.
Mechanism: why the rule works
1. Define strength operationally
Use a measurable indicator such as supported clips or pull force.
Diagnostic question: What observation represents stronger attraction? Reliable response: State the indicator before the comparison.
2. Keep the test object fixed
Material, mass, size and shape affect how easily an object is attracted.
Diagnostic question: Are the objects identical? Reliable response: Use the same object or matched objects.
3. Keep distance fixed
Magnetic effect changes with separation.
Diagnostic question: Is each position tested at the same gap? Reliable response: Use a spacer or contact rule consistently.
4. Sample several positions
Ends and middle are not enough to map every change, but they can reveal a pattern.
Diagnostic question: Where exactly was each trial made? Reliable response: Mark positions along the bar.
5. Repeat and summarise
Single counts can vary because clips move and chain.
Diagnostic question: Are trials repeated? Reliable response: Report a range or consistent average carefully.
6. Bound the claim
More attraction at poles supports “strongest near poles,” not “zero elsewhere.”
Diagnostic question: Was absence measured with a sensitive test? Reliable response: Use comparative language.
Worked examples: make the decision visible
Do not race through these examples. Before reading each explanation, name the evidence that matters and the information that does not. Then compare the correct route with the tempting route. That comparison is where the transferable learning sits.
Worked example 1: Clip count
Task. The left end holds 9 clips, middle 2, right end 8 under matched conditions.
Reasoning. Both ends hold more than the middle. The controlling idea is the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable. This prevents a learner from choosing an answer merely because one word, number or observation resembles a remembered example.
Answer. Attraction is stronger near the poles in this test.
Independent check. Do not say the middle has no effect. A good check approaches the conclusion from a different direction. Repeating the same steps more slowly may repeat the same hidden assumption.
Worked example 2: Unequal distance
Task. The end touches a clip while the middle is 1 cm away.
Reasoning. Distance and position both changed. The controlling idea is the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable. This prevents a learner from choosing an answer merely because one word, number or observation resembles a remembered example.
Answer. The comparison is not fair.
Independent check. Use the same gap. A good check approaches the conclusion from a different direction. Repeating the same steps more slowly may repeat the same hidden assumption.
Worked example 3: Different objects
Task. A small pin is tested at one end and a large nail at the middle.
Reasoning. Mass and shape differ. The controlling idea is the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable. This prevents a learner from choosing an answer merely because one word, number or observation resembles a remembered example.
Answer. No valid position conclusion follows.
Independent check. Use the same object. A good check approaches the conclusion from a different direction. Repeating the same steps more slowly may repeat the same hidden assumption.
Worked example 4: North and south
Task. Both labelled poles lift iron washers.
Reasoning. Unmagnetised iron is attracted to either pole. The controlling idea is the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable. This prevents a learner from choosing an answer merely because one word, number or observation resembles a remembered example.
Answer. Both poles can show strong attraction.
Independent check. Pole type does not mean one attracts and one repels iron. A good check approaches the conclusion from a different direction. Repeating the same steps more slowly may repeat the same hidden assumption.
Worked example 5: Weak middle
Task. The centre lifts one pin.
Reasoning. The observation directly contradicts “no magnetic effect.” The controlling idea is the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable. This prevents a learner from choosing an answer merely because one word, number or observation resembles a remembered example.
Answer. Say the centre is weaker under this setup.
Independent check. Use detected evidence. A good check approaches the conclusion from a different direction. Repeating the same steps more slowly may repeat the same hidden assumption.
Worked example 6: Zero observed
Task. The centre lifts no heavy washer.
Reasoning. The washer may require more force than the centre supplies at that distance. The controlling idea is the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable. This prevents a learner from choosing an answer merely because one word, number or observation resembles a remembered example.
Answer. No lift does not prove exactly zero magnetic effect.
Independent check. Try a more sensitive, fair measure. A good check approaches the conclusion from a different direction. Repeating the same steps more slowly may repeat the same hidden assumption.
Worked example 7: Repeated trials
Task. End counts are 8, 9, 8; middle counts are 1, 2, 1.
Reasoning. The repeated pattern is consistent. The controlling idea is the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable. This prevents a learner from choosing an answer merely because one word, number or observation resembles a remembered example.
Answer. The end is stronger by the chosen indicator.
Independent check. Report all trials. A good check approaches the conclusion from a different direction. Repeating the same steps more slowly may repeat the same hidden assumption.
Worked example 8: Repulsion test
Task. A known north pole repels one end of an unknown bar.
Reasoning. Repulsion shows that end is a magnetic pole. The controlling idea is the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable. This prevents a learner from choosing an answer merely because one word, number or observation resembles a remembered example.
Answer. The unknown bar is magnetised.
Independent check. Attraction alone would not prove this. A good check approaches the conclusion from a different direction. Repeating the same steps more slowly may repeat the same hidden assumption.
Deepening lab: compare cases, conditions and limits
A method becomes independent when you can say where it applies, where it stops and which change would alter the conclusion. The cases below deliberately vary one structural feature at a time. For each case, pause before the analysis and predict whether the core rule remains available. Then name the exact condition that controls the decision. This is harder than repeating a worked solution, but it is also closer to what an unfamiliar examination item demands.
Deepening case 1: Iron filings
Case. Filings cluster more densely near the ends.
Analysis. The pattern visualises stronger magnetic effect near poles. Notice that the answer depends on the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable; changing a decorative detail would not be enough to change the reasoning.
Challenge. Keep the film or paper layer consistent. State the conclusion in one precise sentence, then add one sentence that names the evidence or relationship that makes it valid.
Deepening case 2: Chain effect
Case. A clip attached to a magnet can attract another clip.
Analysis. The chain is not a set of independent direct contacts. Notice that the answer depends on the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable; changing a decorative detail would not be enough to change the reasoning.
Challenge. Use a consistent counting rule. State the conclusion in one precise sentence, then add one sentence that names the evidence or relationship that makes it valid.
Deepening case 3: Force meter
Case. Pull force is measured at marked positions.
Analysis. A quantitative indicator can compare strength. Notice that the answer depends on the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable; changing a decorative detail would not be enough to change the reasoning.
Challenge. Keep motion and distance consistent. State the conclusion in one precise sentence, then add one sentence that names the evidence or relationship that makes it valid.
Deepening case 4: Same pole types
Case. North and south both attract an unmagnetised iron pin.
Analysis. Attraction to magnetic material does not depend on opposite pole labels. Notice that the answer depends on the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable; changing a decorative detail would not be enough to change the reasoning.
Challenge. Separate material attraction from pole interaction. State the conclusion in one precise sentence, then add one sentence that names the evidence or relationship that makes it valid.
Deepening case 5: Known magnets
Case. Like poles repel and unlike poles attract.
Analysis. Pole-to-pole interaction differs from iron attraction. Notice that the answer depends on the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable; changing a decorative detail would not be enough to change the reasoning.
Challenge. Name both facing poles. State the conclusion in one precise sentence, then add one sentence that names the evidence or relationship that makes it valid.
Deepening case 6: Barrier
Case. A thin card may not stop magnetic interaction.
Analysis. Non-magnetic barriers can separate without eliminating the field. Notice that the answer depends on the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable; changing a decorative detail would not be enough to change the reasoning.
Challenge. Keep thickness fixed. State the conclusion in one precise sentence, then add one sentence that names the evidence or relationship that makes it valid.
Deepening case 7: Thick gap
Case. A larger separation weakens detected attraction.
Analysis. Distance can hide a positional pattern. Notice that the answer depends on the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable; changing a decorative detail would not be enough to change the reasoning.
Challenge. Standardise the gap. State the conclusion in one precise sentence, then add one sentence that names the evidence or relationship that makes it valid.
Deepening case 8: Heavy object
Case. A weak attraction may not lift a heavy item.
Analysis. Failure to lift is a threshold observation. Notice that the answer depends on the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable; changing a decorative detail would not be enough to change the reasoning.
Challenge. Use a sensitive comparison. State the conclusion in one precise sentence, then add one sentence that names the evidence or relationship that makes it valid.
Deepening case 9: Different magnet
Case. Two magnets may have different overall strengths.
Analysis. Position and magnet identity would be confounded. Notice that the answer depends on the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable; changing a decorative detail would not be enough to change the reasoning.
Challenge. Use one magnet for the map. State the conclusion in one precise sentence, then add one sentence that names the evidence or relationship that makes it valid.
Deepening case 10: Damaged magnet
Case. Heating or striking may weaken magnetism.
Analysis. Condition of magnet matters. Notice that the answer depends on the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable; changing a decorative detail would not be enough to change the reasoning.
Challenge. Do not alter it between trials. State the conclusion in one precise sentence, then add one sentence that names the evidence or relationship that makes it valid.
Deepening case 11: Orientation
Case. A vertical lifting test works against gravity.
Analysis. A horizontal pull test measures a different setup. Notice that the answer depends on the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable; changing a decorative detail would not be enough to change the reasoning.
Challenge. Use one orientation. State the conclusion in one precise sentence, then add one sentence that names the evidence or relationship that makes it valid.
Deepening case 12: Contact area
Case. Flat and edge contact can change the mechanical arrangement.
Analysis. Geometry can affect the count. Notice that the answer depends on the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable; changing a decorative detail would not be enough to change the reasoning.
Challenge. Standardise placement. State the conclusion in one precise sentence, then add one sentence that names the evidence or relationship that makes it valid.
Deepening case 13: Pole region
Case. A pole is a region near an end, not a single painted dot with all magnetism compressed into it.
Analysis. Labels mark the region conventionally. Notice that the answer depends on the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable; changing a decorative detail would not be enough to change the reasoning.
Challenge. Use “near the pole.” State the conclusion in one precise sentence, then add one sentence that names the evidence or relationship that makes it valid.
Deepening case 14: Middle attraction
Case. A light pin can respond near the centre.
Analysis. Weaker is not identical to absent. Notice that the answer depends on the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable; changing a decorative detail would not be enough to change the reasoning.
Challenge. Use comparative wording. State the conclusion in one precise sentence, then add one sentence that names the evidence or relationship that makes it valid.
Deepening case 15: No response
Case. A plastic bead is not attracted anywhere.
Analysis. Material choice prevents the intended magnetic response. Notice that the answer depends on the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable; changing a decorative detail would not be enough to change the reasoning.
Challenge. Use iron or steel. State the conclusion in one precise sentence, then add one sentence that names the evidence or relationship that makes it valid.
Deepening case 16: Metal trap
Case. Aluminium or copper objects are not attracted like iron or steel in this school context.
Analysis. Not every metal is magnetic. Notice that the answer depends on the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable; changing a decorative detail would not be enough to change the reasoning.
Challenge. Identify the material. State the conclusion in one precise sentence, then add one sentence that names the evidence or relationship that makes it valid.
Deepening case 17: Blind trial
Case. Cover position labels while recording force.
Analysis. Reducing expectation bias can improve a comparison. Notice that the answer depends on the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable; changing a decorative detail would not be enough to change the reasoning.
Challenge. Reveal positions after measurement. State the conclusion in one precise sentence, then add one sentence that names the evidence or relationship that makes it valid.
Deepening case 18: Graph
Case. Plot indicator against distance from one end.
Analysis. A graph can show peaks near the ends. Notice that the answer depends on the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable; changing a decorative detail would not be enough to change the reasoning.
Challenge. Label axes and units. State the conclusion in one precise sentence, then add one sentence that names the evidence or relationship that makes it valid.
Deepening case 19: Conclusion wording
Case. “The poles were strongest under this method” matches the evidence.
Analysis. It states comparison and scope. Notice that the answer depends on the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable; changing a decorative detail would not be enough to change the reasoning.
Challenge. Avoid universal zero claims. State the conclusion in one precise sentence, then add one sentence that names the evidence or relationship that makes it valid.
Deepening case 20: Final audit
Case. Indicator, object, distance, marked positions, repeats and bounded conclusion complete the investigation.
Analysis. Each controls a competing explanation. Notice that the answer depends on the test position on the same magnet while object type, contact or distance, orientation, exposure time and measurement method remain comparable; changing a decorative detail would not be enough to change the reasoning.
Challenge. Audit a proposed experiment. State the conclusion in one precise sentence, then add one sentence that names the evidence or relationship that makes it valid.
Finish the lab with a blank-page recall. Write the rule, its conditions, one confirming example, one near-miss and one independent check from memory. Compare that page with the article only after finishing. If the rule is correct but the condition is missing, the learning is not yet safe: an overgeneralised rule can produce confident errors. If the condition is correct but no example can be generated, practise construction rather than rereading.
Common misconceptions and targeted repairs
Misconception 1: Only poles are magnetic
What the learner may think. The rest of the bar has no magnetic effect.
Why it fails. The effect is strongest near poles but may be weaker elsewhere. The error feels efficient because it removes a decision, but it also removes the evidence boundary that makes the answer valid.
Targeted repair. Use comparative observations. Use this short test immediately: Was any middle attraction detected?
Misconception 2: North attracts and south repels iron
What the learner may think. Pole labels decide attraction to a pin.
Why it fails. Both poles attract unmagnetised iron or steel. The error feels efficient because it removes a decision, but it also removes the evidence boundary that makes the answer valid.
Targeted repair. Separate pole interaction from material attraction. Use this short test immediately: Is the second object a magnet?
Misconception 3: No lift means zero force
What the learner may think. A heavy object did not move.
Why it fails. The force may be below the movement threshold. The error feels efficient because it removes a decision, but it also removes the evidence boundary that makes the answer valid.
Targeted repair. Use a more sensitive fair measure. Use this short test immediately: What minimum force was required?
Misconception 4: More clips is perfect measurement
What the learner may think. Every clip counts independently.
Why it fails. Clip chains and arrangement introduce variation. The error feels efficient because it removes a decision, but it also removes the evidence boundary that makes the answer valid.
Targeted repair. Standardise and repeat. Use this short test immediately: How were clips attached?
Misconception 5: Distance is irrelevant
What the learner may think. Only magnet position matters.
Why it fails. Changing separation can change the detected attraction even when the magnet is unchanged. The error feels efficient because it removes a decision, but it also removes the evidence boundary that makes the answer valid.
Targeted repair. Fix the gap. Use this short test immediately: Were all trials equally distant?
Misconception 6: Any metal is suitable
What the learner may think. A coin always reveals magnetic strength.
Why it fails. Many metals are not attracted like iron or steel. The error feels efficient because it removes a decision, but it also removes the evidence boundary that makes the answer valid.
Targeted repair. Identify and standardise material. Use this short test immediately: Is the object magnetic material?
Graded independent practice
Attempt each item without looking ahead. Write one line that identifies the controlling evidence before writing the final answer. Items 1–3 check recognition, 4–7 require explanation, and the later items change the surface form so that memory alone is insufficient.
Practice 1: Observation
Question. More clips attach at both ends than the centre. What is supported?
Explained answer. Attraction is stronger near the poles under the test conditions.
Why this answer earns trust. The comparison is relative. Transfer variation: Avoid saying zero at centre.
Practice 2: Fair test
Question. Name two controlled variables.
Explained answer. Object material and distance, with size and orientation also controlled.
Why this answer earns trust. Each could change the result. Transfer variation: Explain one competing effect.
Practice 3: Material
Question. Should plastic beads test pole strength?
Explained answer. No.
Why this answer earns trust. They do not provide the intended magnetic response. Transfer variation: Choose identical iron pins.
Practice 4: Inference
Question. No heavy nail moves at the centre. Is magnetism absent there?
Explained answer. Not proven.
Why this answer earns trust. The test may be insufficiently sensitive. Transfer variation: Propose a fairer indicator.
Practice 5: Pole type
Question. Can both poles attract iron?
Explained answer. Yes.
Why this answer earns trust. Unmagnetised iron is attracted to either pole. Transfer variation: Contrast with like-pole repulsion.
Practice 6: Repulsion
Question. What does repulsion between two bars show?
Explained answer. Both interacting ends are magnetic poles.
Why this answer earns trust. Only magnets can provide the pole repulsion test here. Transfer variation: Name the facing poles if known.
Practice 7: Data
Question. Counts 7, 1, 8 at left, middle, right. Summarise.
Explained answer. Both pole regions show greater attraction than the middle.
Why this answer earns trust. Use all three values. Transfer variation: Repeat trials.
Practice 8: Confound
Question. End touches; middle is 2 cm away. What is wrong?
Explained answer. Position and distance both changed.
Why this answer earns trust. The cause cannot be isolated. Transfer variation: Use a fixed spacer.
Practice 9: Rule recall
Question. State the principle precisely.
Explained answer. A bar magnet’s effect is strongest near its poles, not necessarily absent elsewhere.
Why this answer earns trust. Comparison and limit are both present. Transfer variation: Recall after one week.
Practice 10: Transfer
Question. Design a five-position map.
Explained answer. The same object, distance and method are repeated at marked positions.
Why this answer earns trust. The pattern becomes testable. Transfer variation: Graph the results.
Delayed transfer: prove that the learning lasts
Transfer test 1: Experiment critique
Find confounds in three magnetic tests. Do this after a delay, without rereading the worked examples. The purpose is to test retrieval and decision-making, not immediate imitation.
Success criterion. Position is the only intended change. If the criterion is not met, return to the smallest missing decision rather than repeating the entire chapter.
Transfer test 2: Evidence language
Rewrite absolute claims comparatively. Do this after a delay, without rereading the worked examples. The purpose is to test retrieval and decision-making, not immediate imitation.
Success criterion. No zero claim exceeds the measurement. If the criterion is not met, return to the smallest missing decision rather than repeating the entire chapter.
Transfer test 3: Pole/material sort
Classify attraction and repulsion cases. Do this after a delay, without rereading the worked examples. The purpose is to test retrieval and decision-making, not immediate imitation.
Success criterion. Pole interactions are separated from magnetic-material attraction. If the criterion is not met, return to the smallest missing decision rather than repeating the entire chapter.
Examination control
1. Read the job before the story. Underline the command and the noun it governs. “Explain the change,” “state the word,” “find the fraction” and “identify the evidence” are different jobs even when the surrounding context is similar.
2. Separate given information from remembered information. Use only the facts supplied for the current task plus secure subject knowledge. Do not let a previous question, a familiar worksheet or an expected pattern silently become new evidence.
3. Write enough working to expose the decision. A marker or teacher should be able to see the relationship that justifies the answer. Extra sentences are not automatically stronger; the strongest working is concise, relevant and checkable.
4. Reserve a different-route check. For language, read the sentence for meaning and grammar. For mathematics, estimate or reverse the operation. For science, check the claim against the stated observation and a conservation or fair-test principle.
5. Stop when the requested job is complete. Unrequested speculation can contradict a correct answer. Add detail only when it explains the mechanism or satisfies another explicit part of the question.
Under time pressure, use a compact four-part margin routine: trigger → evidence → operation → check. Trigger names the feature that activates the method. Evidence identifies the exact words, values or observations allowed. Operation performs the language, mathematical or scientific step. Check asks whether the final statement answers the requested job, preserves units or referents, and avoids a stronger claim than the evidence supports.
A compact error log
After practice, do not record only “careless mistake.” Name the broken decision. Useful labels include trigger missed, evidence imported, relationship reversed, referent lost, unit dropped, operation correct but job wrong, and check repeated the same route. Add one prevention cue beside the label. A short accurate log is more useful than a long emotional account because it tells the learner what to do on the next item.
Review the log after two days and again after a week. Reattempt only one or two representative items first. If the method transfers, move to a mixed set. If it fails, repair the exact link between trigger and operation. This spacing matters because a solution can feel obvious while it is still visible and disappear when the page is closed.
Notes for parents and tutors
Use one bar magnet and identical paper clips at marked positions. Keep the contact rule fixed and repeat rather than treating one neat trial as final.
Ask the learner to replace “only at the poles” with “strongest near the poles.” The wording change encodes the evidence accurately.
Contrast an iron pin with a second known magnet. This separates attraction to magnetic material from attraction or repulsion between poles.
The adult’s most useful question is not “Why were you careless?” but “Which decision did the evidence require?” Ask the learner to point to the controlling word, value, relationship or observation. If the learner can explain that link, reduce support. If the learner cannot, model one example and then change the surface details for the next attempt.
Frequently asked questions
Where is a bar magnet strongest?
Near its north and south poles.
Is the middle completely non-magnetic?
That does not follow; its effect may be weaker.
Do both poles attract iron?
Yes.
What proves an object is a magnet?
Repulsion with a known magnet is the sure pole-interaction test.
Why keep distance fixed?
A different separation can change the observed attraction and spoil the position comparison.
What is the safest conclusion?
The poles showed the greatest attraction under the controlled test.
Next routes
Return to the complete volume directory to locate the series, use the original PSLE Learning Guide for the foundation route, and continue through PSLE Science for verified subject guidance. The next useful task is a mixed set in which this idea is sometimes relevant and sometimes irrelevant; that is the point at which a learner must choose, not merely copy.