PSLE Learner’s Guide · Volume 1059
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In one simple unbranched series loop, an open switch breaks the only path wherever it is placed. Its drawn position matters only when moving it changes the circuit connections or branch controlled.
Series routes: Use the complete PSLE Learner’s Guide volume directory, the original PSLE Learning Guide and the Science learning hub.
This guide uses original Primary 6 practice and does not predict a live question. Consult the SEAB PSLE formats examined in 2026 page for official information.
Open the full chapter index
- 1. Trace connectivity, not page position
- 2. Use the one-path condition
- 3. Explain the open switch
- 4. Explain the closed switch
- 5. Move without rewiring
- 6. Protect the branch boundary
- 7. Do not treat current as waiting behind the switch
- 8. Audit the complete setup
- 9. Worked examples
- 10. Independent practice
- 11. Delayed transfer
- 12. Family guidance and FAQs
CHAPTER 1 OF 12 · Back to contents
1. Trace connectivity, not page position
A circuit diagram records connections. A switch drawn before or after a bulb is not automatically more powerful; what matters is whether opening it interrupts the conducting path that includes the bulb.
Build the explanation by naming the cell wires bulbs switch contacts junctions and every possible conducting path and the structural mechanism by which an open switch breaks a path and a closed switch reconnects it. A remembered keyword is not enough: connect the observation to the mechanism and identify what would have to change for the conclusion to change.
Repair the nearest misconception by checking whether the circuit remains one simple series loop or has branches altered contacts faulty components or changed connections and returning to switch open closed series circuit branch loop path current control position diagram connection junction component contact conductor fault prediction and fair comparison. State why the tempting alternative is too strong, incomplete or about a different stage.
- Check the cell wires bulbs switch contacts junctions and every possible conducting path.
- Check the structural mechanism by which an open switch breaks a path and a closed switch reconnects it.
- Check whether the circuit remains one simple series loop or has branches altered contacts faulty components or changed connections.
- Check switch open closed series circuit branch loop path current control position diagram connection junction component contact conductor fault prediction and fair comparison.
CHAPTER 2 OF 12 · Back to contents
2. Use the one-path condition
In a simple series circuit there is only one route from one cell terminal through every component and back to the other terminal. A break anywhere opens that only route.
Build the explanation by naming the cell wires bulbs switch contacts junctions and every possible conducting path and the structural mechanism by which an open switch breaks a path and a closed switch reconnects it. A remembered keyword is not enough: connect the observation to the mechanism and identify what would have to change for the conclusion to change.
Repair the nearest misconception by checking whether the circuit remains one simple series loop or has branches altered contacts faulty components or changed connections and returning to switch open closed series circuit branch loop path current control position diagram connection junction component contact conductor fault prediction and fair comparison. State why the tempting alternative is too strong, incomplete or about a different stage.
CHAPTER 3 OF 12 · Back to contents
3. Explain the open switch
An open switch separates its contacts. The path is incomplete, so current cannot continue around the full loop and every component in that lone series path stops operating.
Build the explanation by naming the cell wires bulbs switch contacts junctions and every possible conducting path and the structural mechanism by which an open switch breaks a path and a closed switch reconnects it. A remembered keyword is not enough: connect the observation to the mechanism and identify what would have to change for the conclusion to change.
Repair the nearest misconception by checking whether the circuit remains one simple series loop or has branches altered contacts faulty components or changed connections and returning to switch open closed series circuit branch loop path current control position diagram connection junction component contact conductor fault prediction and fair comparison. State why the tempting alternative is too strong, incomplete or about a different stage.
CHAPTER 4 OF 12 · Back to contents
4. Explain the closed switch
A closed switch connects its contacts. If the rest of the path is complete, components work and contacts conduct, the loop can carry current. Closing does not repair a separate fault elsewhere.
Build the explanation by naming the cell wires bulbs switch contacts junctions and every possible conducting path and the structural mechanism by which an open switch breaks a path and a closed switch reconnects it. A remembered keyword is not enough: connect the observation to the mechanism and identify what would have to change for the conclusion to change.
Repair the nearest misconception by checking whether the circuit remains one simple series loop or has branches altered contacts faulty components or changed connections and returning to switch open closed series circuit branch loop path current control position diagram connection junction component contact conductor fault prediction and fair comparison. State why the tempting alternative is too strong, incomplete or about a different stage.
CHAPTER 5 OF 12 · Back to contents
5. Move without rewiring
If a switch is relocated along the same unbranched wire while all component connections stay in series, its control effect is unchanged. The order on the drawing does not create a new path.
Build the explanation by naming the cell wires bulbs switch contacts junctions and every possible conducting path and the structural mechanism by which an open switch breaks a path and a closed switch reconnects it. A remembered keyword is not enough: connect the observation to the mechanism and identify what would have to change for the conclusion to change.
Repair the nearest misconception by checking whether the circuit remains one simple series loop or has branches altered contacts faulty components or changed connections and returning to switch open closed series circuit branch loop path current control position diagram connection junction component contact conductor fault prediction and fair comparison. State why the tempting alternative is too strong, incomplete or about a different stage.
CHAPTER 6 OF 12 · Back to contents
6. Protect the branch boundary
In a parallel circuit, a switch placed before a junction may interrupt all branches, while a switch inside one branch may interrupt only that branch. Moving it across a junction changes connectivity and therefore changes control.
Build the explanation by naming the cell wires bulbs switch contacts junctions and every possible conducting path and the structural mechanism by which an open switch breaks a path and a closed switch reconnects it. A remembered keyword is not enough: connect the observation to the mechanism and identify what would have to change for the conclusion to change.
Repair the nearest misconception by checking whether the circuit remains one simple series loop or has branches altered contacts faulty components or changed connections and returning to switch open closed series circuit branch loop path current control position diagram connection junction component contact conductor fault prediction and fair comparison. State why the tempting alternative is too strong, incomplete or about a different stage.
CHAPTER 7 OF 12 · Back to contents
7. Do not treat current as waiting behind the switch
The circuit responds as a complete system. An open path means no sustained current around that loop; current is not stored on one side waiting to be released like water in a tank.
Build the explanation by naming the cell wires bulbs switch contacts junctions and every possible conducting path and the structural mechanism by which an open switch breaks a path and a closed switch reconnects it. A remembered keyword is not enough: connect the observation to the mechanism and identify what would have to change for the conclusion to change.
Repair the nearest misconception by checking whether the circuit remains one simple series loop or has branches altered contacts faulty components or changed connections and returning to switch open closed series circuit branch loop path current control position diagram connection junction component contact conductor fault prediction and fair comparison. State why the tempting alternative is too strong, incomplete or about a different stage.
CHAPTER 8 OF 12 · Back to contents
8. Audit the complete setup
Mark every junction, trace each possible route and imagine the switch open and closed. Predict control from path interruption, then check cells, bulbs, wires and contacts before concluding.
Build the explanation by naming the cell wires bulbs switch contacts junctions and every possible conducting path and the structural mechanism by which an open switch breaks a path and a closed switch reconnects it. A remembered keyword is not enough: connect the observation to the mechanism and identify what would have to change for the conclusion to change.
Repair the nearest misconception by checking whether the circuit remains one simple series loop or has branches altered contacts faulty components or changed connections and returning to switch open closed series circuit branch loop path current control position diagram connection junction component contact conductor fault prediction and fair comparison. State why the tempting alternative is too strong, incomplete or about a different stage.
CHAPTER 9 OF 12 · Back to contents
9. Worked examples
Worked case 1: One cell, one bulb and one switch form a single loop. The switch is open. Does the bulb light?
Controlled answer. No. The only conducting path is broken.
Mechanism. Identify the exact relationship, apply the relevant rule and preserve every stated condition. A surface clue may be compatible with several explanations, so the answer must show what makes this case decisive.
Misconception repair. Do not turn partial evidence into complete proof. Name the closest wrong answer, identify its missing condition and explain why the observed evidence supports the narrower conclusion.
Transfer. Move the switch to the other side of the bulb without changing connections. Solve the altered case from the mechanism rather than copying the previous wording.
Explanation standard. A complete explanation names the observation, connects it to the rule and limits the conclusion to what follows. It should remain valid if decorative details are removed. If the explanation depends on the story topic instead of the decisive relation, rebuild it.
Audit. Recheck the cell wires bulbs switch contacts junctions and every possible conducting path, the structural mechanism by which an open switch breaks a path and a closed switch reconnects it, whether the circuit remains one simple series loop or has branches altered contacts faulty components or changed connections, switch open closed series circuit branch loop path current control position diagram connection junction component contact conductor fault prediction and fair comparison. Decide whether the evidence proves the conclusion or only supports a limited statement.
Worked case 2: The same switch is closed and all components work. Does the bulb light?
Controlled answer. Yes. The single loop is complete and conducting.
Mechanism. Identify the exact relationship, apply the relevant rule and preserve every stated condition. A surface clue may be compatible with several explanations, so the answer must show what makes this case decisive.
Misconception repair. Do not turn partial evidence into complete proof. Name the closest wrong answer, identify its missing condition and explain why the observed evidence supports the narrower conclusion.
Transfer. Add a separate loose contact and reconsider. Solve the altered case from the mechanism rather than copying the previous wording.
Explanation standard. A complete explanation names the observation, connects it to the rule and limits the conclusion to what follows. It should remain valid if decorative details are removed. If the explanation depends on the story topic instead of the decisive relation, rebuild it.
Audit. Recheck the cell wires bulbs switch contacts junctions and every possible conducting path, the structural mechanism by which an open switch breaks a path and a closed switch reconnects it, whether the circuit remains one simple series loop or has branches altered contacts faulty components or changed connections, switch open closed series circuit branch loop path current control position diagram connection junction component contact conductor fault prediction and fair comparison. Decide whether the evidence proves the conclusion or only supports a limited statement.
Worked case 3: Does drawing the switch before the bulb make it control the bulb more strongly?
Controlled answer. No. Control depends on connection and path, not left-to-right page order.
Mechanism. Identify the exact relationship, apply the relevant rule and preserve every stated condition. A surface clue may be compatible with several explanations, so the answer must show what makes this case decisive.
Misconception repair. Do not turn partial evidence into complete proof. Name the closest wrong answer, identify its missing condition and explain why the observed evidence supports the narrower conclusion.
Transfer. Redraw the loop with components in another order. Solve the altered case from the mechanism rather than copying the previous wording.
Explanation standard. A complete explanation names the observation, connects it to the rule and limits the conclusion to what follows. It should remain valid if decorative details are removed. If the explanation depends on the story topic instead of the decisive relation, rebuild it.
Audit. Recheck the cell wires bulbs switch contacts junctions and every possible conducting path, the structural mechanism by which an open switch breaks a path and a closed switch reconnects it, whether the circuit remains one simple series loop or has branches altered contacts faulty components or changed connections, switch open closed series circuit branch loop path current control position diagram connection junction component contact conductor fault prediction and fair comparison. Decide whether the evidence proves the conclusion or only supports a limited statement.
Worked case 4: Why does an open switch anywhere in a simple series loop stop every bulb in that loop?
Controlled answer. It breaks the only complete path. No alternate branch exists for current.
Mechanism. Identify the exact relationship, apply the relevant rule and preserve every stated condition. A surface clue may be compatible with several explanations, so the answer must show what makes this case decisive.
Misconception repair. Do not turn partial evidence into complete proof. Name the closest wrong answer, identify its missing condition and explain why the observed evidence supports the narrower conclusion.
Transfer. Contrast a parallel circuit. Solve the altered case from the mechanism rather than copying the previous wording.
Explanation standard. A complete explanation names the observation, connects it to the rule and limits the conclusion to what follows. It should remain valid if decorative details are removed. If the explanation depends on the story topic instead of the decisive relation, rebuild it.
Audit. Recheck the cell wires bulbs switch contacts junctions and every possible conducting path, the structural mechanism by which an open switch breaks a path and a closed switch reconnects it, whether the circuit remains one simple series loop or has branches altered contacts faulty components or changed connections, switch open closed series circuit branch loop path current control position diagram connection junction component contact conductor fault prediction and fair comparison. Decide whether the evidence proves the conclusion or only supports a limited statement.
Worked case 5: A switch is moved along the same wire between the same series components. What changes?
Controlled answer. Its drawn location changes but its control effect does not. Connectivity remains one unbranched loop.
Mechanism. Identify the exact relationship, apply the relevant rule and preserve every stated condition. A surface clue may be compatible with several explanations, so the answer must show what makes this case decisive.
Misconception repair. Do not turn partial evidence into complete proof. Name the closest wrong answer, identify its missing condition and explain why the observed evidence supports the narrower conclusion.
Transfer. State the condition that must remain fixed. Solve the altered case from the mechanism rather than copying the previous wording.
Explanation standard. A complete explanation names the observation, connects it to the rule and limits the conclusion to what follows. It should remain valid if decorative details are removed. If the explanation depends on the story topic instead of the decisive relation, rebuild it.
Audit. Recheck the cell wires bulbs switch contacts junctions and every possible conducting path, the structural mechanism by which an open switch breaks a path and a closed switch reconnects it, whether the circuit remains one simple series loop or has branches altered contacts faulty components or changed connections, switch open closed series circuit branch loop path current control position diagram connection junction component contact conductor fault prediction and fair comparison. Decide whether the evidence proves the conclusion or only supports a limited statement.
Worked case 6: A switch is moved from before a parallel junction into one branch. Is this the same circuit control?
Controlled answer. No. The first position can interrupt all branches, while the branch position can interrupt only one route.
Mechanism. Identify the exact relationship, apply the relevant rule and preserve every stated condition. A surface clue may be compatible with several explanations, so the answer must show what makes this case decisive.
Misconception repair. Do not turn partial evidence into complete proof. Name the closest wrong answer, identify its missing condition and explain why the observed evidence supports the narrower conclusion.
Transfer. Trace both diagrams separately. Solve the altered case from the mechanism rather than copying the previous wording.
Explanation standard. A complete explanation names the observation, connects it to the rule and limits the conclusion to what follows. It should remain valid if decorative details are removed. If the explanation depends on the story topic instead of the decisive relation, rebuild it.
Audit. Recheck the cell wires bulbs switch contacts junctions and every possible conducting path, the structural mechanism by which an open switch breaks a path and a closed switch reconnects it, whether the circuit remains one simple series loop or has branches altered contacts faulty components or changed connections, switch open closed series circuit branch loop path current control position diagram connection junction component contact conductor fault prediction and fair comparison. Decide whether the evidence proves the conclusion or only supports a limited statement.
Worked case 7: Can a closed switch guarantee that a bulb lights?
Controlled answer. No. The rest of the path, cell, bulb and contacts must also work.
Mechanism. Identify the exact relationship, apply the relevant rule and preserve every stated condition. A surface clue may be compatible with several explanations, so the answer must show what makes this case decisive.
Misconception repair. Do not turn partial evidence into complete proof. Name the closest wrong answer, identify its missing condition and explain why the observed evidence supports the narrower conclusion.
Transfer. List one fault that keeps the bulb off. Solve the altered case from the mechanism rather than copying the previous wording.
Explanation standard. A complete explanation names the observation, connects it to the rule and limits the conclusion to what follows. It should remain valid if decorative details are removed. If the explanation depends on the story topic instead of the decisive relation, rebuild it.
Audit. Recheck the cell wires bulbs switch contacts junctions and every possible conducting path, the structural mechanism by which an open switch breaks a path and a closed switch reconnects it, whether the circuit remains one simple series loop or has branches altered contacts faulty components or changed connections, switch open closed series circuit branch loop path current control position diagram connection junction component contact conductor fault prediction and fair comparison. Decide whether the evidence proves the conclusion or only supports a limited statement.
Worked case 8: Can an open switch in one parallel branch switch off an intact second branch?
Controlled answer. Not necessarily. The second branch may still form a complete path through the source.
Mechanism. Identify the exact relationship, apply the relevant rule and preserve every stated condition. A surface clue may be compatible with several explanations, so the answer must show what makes this case decisive.
Misconception repair. Do not turn partial evidence into complete proof. Name the closest wrong answer, identify its missing condition and explain why the observed evidence supports the narrower conclusion.
Transfer. Identify where a master switch would be placed. Solve the altered case from the mechanism rather than copying the previous wording.
Explanation standard. A complete explanation names the observation, connects it to the rule and limits the conclusion to what follows. It should remain valid if decorative details are removed. If the explanation depends on the story topic instead of the decisive relation, rebuild it.
Audit. Recheck the cell wires bulbs switch contacts junctions and every possible conducting path, the structural mechanism by which an open switch breaks a path and a closed switch reconnects it, whether the circuit remains one simple series loop or has branches altered contacts faulty components or changed connections, switch open closed series circuit branch loop path current control position diagram connection junction component contact conductor fault prediction and fair comparison. Decide whether the evidence proves the conclusion or only supports a limited statement.
Worked case 9: Repair: Electricity reaches the first bulb before the switch, so that bulb remains on.
Controlled answer. In a simple series loop an open switch breaks the complete path, so no bulb in that loop remains on. The circuit is not read as a one-way page sequence.
Mechanism. Identify the exact relationship, apply the relevant rule and preserve every stated condition. A surface clue may be compatible with several explanations, so the answer must show what makes this case decisive.
Misconception repair. Do not turn partial evidence into complete proof. Name the closest wrong answer, identify its missing condition and explain why the observed evidence supports the narrower conclusion.
Transfer. Trace from one cell terminal all the way back. Solve the altered case from the mechanism rather than copying the previous wording.
Explanation standard. A complete explanation names the observation, connects it to the rule and limits the conclusion to what follows. It should remain valid if decorative details are removed. If the explanation depends on the story topic instead of the decisive relation, rebuild it.
Audit. Recheck the cell wires bulbs switch contacts junctions and every possible conducting path, the structural mechanism by which an open switch breaks a path and a closed switch reconnects it, whether the circuit remains one simple series loop or has branches altered contacts faulty components or changed connections, switch open closed series circuit branch loop path current control position diagram connection junction component contact conductor fault prediction and fair comparison. Decide whether the evidence proves the conclusion or only supports a limited statement.
Worked case 10: Repair: Closing a switch creates electricity.
Controlled answer. Closing the switch completes a path; the cell is the energy source. The switch controls connection rather than creating current.
Mechanism. Identify the exact relationship, apply the relevant rule and preserve every stated condition. A surface clue may be compatible with several explanations, so the answer must show what makes this case decisive.
Misconception repair. Do not turn partial evidence into complete proof. Name the closest wrong answer, identify its missing condition and explain why the observed evidence supports the narrower conclusion.
Transfer. Separate source from control. Solve the altered case from the mechanism rather than copying the previous wording.
Explanation standard. A complete explanation names the observation, connects it to the rule and limits the conclusion to what follows. It should remain valid if decorative details are removed. If the explanation depends on the story topic instead of the decisive relation, rebuild it.
Audit. Recheck the cell wires bulbs switch contacts junctions and every possible conducting path, the structural mechanism by which an open switch breaks a path and a closed switch reconnects it, whether the circuit remains one simple series loop or has branches altered contacts faulty components or changed connections, switch open closed series circuit branch loop path current control position diagram connection junction component contact conductor fault prediction and fair comparison. Decide whether the evidence proves the conclusion or only supports a limited statement.
Worked case 11: Two bulbs and a switch are in one series loop. Opening the switch has what effect?
Controlled answer. Both bulbs go off. The one shared path is broken.
Mechanism. Identify the exact relationship, apply the relevant rule and preserve every stated condition. A surface clue may be compatible with several explanations, so the answer must show what makes this case decisive.
Misconception repair. Do not turn partial evidence into complete proof. Name the closest wrong answer, identify its missing condition and explain why the observed evidence supports the narrower conclusion.
Transfer. Move the switch between the bulbs and verify the same effect. Solve the altered case from the mechanism rather than copying the previous wording.
Explanation standard. A complete explanation names the observation, connects it to the rule and limits the conclusion to what follows. It should remain valid if decorative details are removed. If the explanation depends on the story topic instead of the decisive relation, rebuild it.
Audit. Recheck the cell wires bulbs switch contacts junctions and every possible conducting path, the structural mechanism by which an open switch breaks a path and a closed switch reconnects it, whether the circuit remains one simple series loop or has branches altered contacts faulty components or changed connections, switch open closed series circuit branch loop path current control position diagram connection junction component contact conductor fault prediction and fair comparison. Decide whether the evidence proves the conclusion or only supports a limited statement.
Worked case 12: The diagram is rotated 180 degrees. Does the switch control change?
Controlled answer. No. Rotation changes page orientation, not electrical connections.
Mechanism. Identify the exact relationship, apply the relevant rule and preserve every stated condition. A surface clue may be compatible with several explanations, so the answer must show what makes this case decisive.
Misconception repair. Do not turn partial evidence into complete proof. Name the closest wrong answer, identify its missing condition and explain why the observed evidence supports the narrower conclusion.
Transfer. Use node-to-node tracing instead of visual order. Solve the altered case from the mechanism rather than copying the previous wording.
Explanation standard. A complete explanation names the observation, connects it to the rule and limits the conclusion to what follows. It should remain valid if decorative details are removed. If the explanation depends on the story topic instead of the decisive relation, rebuild it.
Audit. Recheck the cell wires bulbs switch contacts junctions and every possible conducting path, the structural mechanism by which an open switch breaks a path and a closed switch reconnects it, whether the circuit remains one simple series loop or has branches altered contacts faulty components or changed connections, switch open closed series circuit branch loop path current control position diagram connection junction component contact conductor fault prediction and fair comparison. Decide whether the evidence proves the conclusion or only supports a limited statement.
CHAPTER 10 OF 12 · Back to contents
10. Independent practice
Practice 1: A closed switch has dirty non-conducting contacts. Is the path electrically complete?
Explained answer. No. Physical closure alone is insufficient if the contact does not conduct.
Delayed transfer. Distinguish drawn symbol from actual condition. Cover the answer later and rebuild the chain.
Control question. Which exact condition does the nearest wrong answer miss? State it before checking.
Extension. Change one decisive feature while keeping the story similar. Explain why the conclusion now stays or changes.
Independent proof. Restate the answer without copying its wording. Your version must identify the evidence, the governing relationship and the boundary of the claim. Then write one fact that would be relevant but still insufficient on its own. This separates explanation from repetition.
Delayed comparison. Save this item beside the near-nonexample you created. On the next attempt, compare them before answering and point to the single feature that controls the difference. If more than one feature changed, revise the pair so the comparison stays fair.
Practice 2: A wire bypasses an open switch. Can current still have a route?
Explained answer. Yes, if the bypass forms a complete conducting path. The bypass creates an alternate connection.
Delayed transfer. Redraw the circuit and mark the branch. Cover the answer later and rebuild the chain.
Control question. Which exact condition does the nearest wrong answer miss? State it before checking.
Extension. Change one decisive feature while keeping the story similar. Explain why the conclusion now stays or changes.
Independent proof. Restate the answer without copying its wording. Your version must identify the evidence, the governing relationship and the boundary of the claim. Then write one fact that would be relevant but still insufficient on its own. This separates explanation from repetition.
Delayed comparison. Save this item beside the near-nonexample you created. On the next attempt, compare them before answering and point to the single feature that controls the difference. If more than one feature changed, revise the pair so the comparison stays fair.
Practice 3: Where should a master switch for two parallel branches be placed?
Explained answer. On the shared path before the split or after the branches rejoin. Opening it interrupts every complete route through the source.
Delayed transfer. Compare with a switch inside one branch. Cover the answer later and rebuild the chain.
Control question. Which exact condition does the nearest wrong answer miss? State it before checking.
Extension. Change one decisive feature while keeping the story similar. Explain why the conclusion now stays or changes.
Independent proof. Restate the answer without copying its wording. Your version must identify the evidence, the governing relationship and the boundary of the claim. Then write one fact that would be relevant but still insufficient on its own. This separates explanation from repetition.
Delayed comparison. Save this item beside the near-nonexample you created. On the next attempt, compare them before answering and point to the single feature that controls the difference. If more than one feature changed, revise the pair so the comparison stays fair.
Practice 4: Why is the phrase same series path important?
Explained answer. Moving across a junction or changing connections can alter which paths are broken. The conclusion is conditional on preserved topology.
Delayed transfer. Name the changed connection in a near-nonexample. Cover the answer later and rebuild the chain.
Control question. Which exact condition does the nearest wrong answer miss? State it before checking.
Extension. Change one decisive feature while keeping the story similar. Explain why the conclusion now stays or changes.
Independent proof. Restate the answer without copying its wording. Your version must identify the evidence, the governing relationship and the boundary of the claim. Then write one fact that would be relevant but still insufficient on its own. This separates explanation from repetition.
Delayed comparison. Save this item beside the near-nonexample you created. On the next attempt, compare them before answering and point to the single feature that controls the difference. If more than one feature changed, revise the pair so the comparison stays fair.
Practice 5: Does a switch consume current when open?
Explained answer. No sustained current flows around the broken loop. The switch creates an open circuit rather than using up current.
Delayed transfer. Keep the explanation structural. Cover the answer later and rebuild the chain.
Control question. Which exact condition does the nearest wrong answer miss? State it before checking.
Extension. Change one decisive feature while keeping the story similar. Explain why the conclusion now stays or changes.
Independent proof. Restate the answer without copying its wording. Your version must identify the evidence, the governing relationship and the boundary of the claim. Then write one fact that would be relevant but still insufficient on its own. This separates explanation from repetition.
Delayed comparison. Save this item beside the near-nonexample you created. On the next attempt, compare them before answering and point to the single feature that controls the difference. If more than one feature changed, revise the pair so the comparison stays fair.
Practice 6: What is the fastest diagram check?
Explained answer. Trace every complete route from one cell terminal back to the other with the switch in each state. A route exists only when every connection on it conducts.
Delayed transfer. Mark junctions before predicting bulbs. Cover the answer later and rebuild the chain.
Control question. Which exact condition does the nearest wrong answer miss? State it before checking.
Extension. Change one decisive feature while keeping the story similar. Explain why the conclusion now stays or changes.
Independent proof. Restate the answer without copying its wording. Your version must identify the evidence, the governing relationship and the boundary of the claim. Then write one fact that would be relevant but still insufficient on its own. This separates explanation from repetition.
Delayed comparison. Save this item beside the near-nonexample you created. On the next attempt, compare them before answering and point to the single feature that controls the difference. If more than one feature changed, revise the pair so the comparison stays fair.
Practice 7: How do you compare two switch positions fairly?
Explained answer. Keep the same cell components and connections except for the stated switch location. Otherwise a changed outcome may come from another circuit change.
Delayed transfer. List the controlled features. Cover the answer later and rebuild the chain.
Control question. Which exact condition does the nearest wrong answer miss? State it before checking.
Extension. Change one decisive feature while keeping the story similar. Explain why the conclusion now stays or changes.
Independent proof. Restate the answer without copying its wording. Your version must identify the evidence, the governing relationship and the boundary of the claim. Then write one fact that would be relevant but still insufficient on its own. This separates explanation from repetition.
Delayed comparison. Save this item beside the near-nonexample you created. On the next attempt, compare them before answering and point to the single feature that controls the difference. If more than one feature changed, revise the pair so the comparison stays fair.
Practice 8: State the full method.
Explained answer. Identify cells components switches and junctions, trace every possible path, model the switch as connected when closed and separated when open, decide whether its position lies on a shared route or only one branch, and check other component faults before concluding what it controls. The method predicts operation from connectivity rather than drawing order.
Delayed transfer. Apply it after a delay to one series loop one parallel circuit and one bypass case. Cover the answer later and rebuild the chain.
Control question. Which exact condition does the nearest wrong answer miss? State it before checking.
Extension. Change one decisive feature while keeping the story similar. Explain why the conclusion now stays or changes.
Independent proof. Restate the answer without copying its wording. Your version must identify the evidence, the governing relationship and the boundary of the claim. Then write one fact that would be relevant but still insufficient on its own. This separates explanation from repetition.
Delayed comparison. Save this item beside the near-nonexample you created. On the next attempt, compare them before answering and point to the single feature that controls the difference. If more than one feature changed, revise the pair so the comparison stays fair.
CHAPTER 11 OF 12 · Back to contents
11. Delayed transfer
On day one, solve clear examples. On day three, mix examples, near-nonexamples and incomplete evidence. On day seven, solve without headings or a word bank. Delay reveals whether the method can be reconstructed independently.
Keep an error log for the first failed stage: reading, representation, rule, execution or checking. The earliest failure identifies the repair.
Interleave this skill with neighbouring ideas that share vocabulary. Classify each item only after naming the distinguishing condition.
In timed work, mark the relationship, apply the rule, write the conclusion and audit one condition. If checking changes the answer, record the overlooked feature.
Create a teach-back card with a near-nonexample on the front and the repaired mechanism on the back. Explain why the tempting answer fails.
Finish with one basic example, one boundary case and one transfer case. Supply explanations that a classmate can verify.
For a second delayed test, reverse the direction: start from a conclusion and invent evidence that would justify it, then evidence that would be insufficient. This exposes the boundary between relevance and proof.
CHAPTER 12 OF 12 · Back to contents
12. Family guidance and FAQs
Guidance for parents and tutors
Ask for the decisive condition before confirming the answer. Use prompts such as “What exactly happened?”, “Which stage or meaning is this?” and “What would prove it?”
Fade support from labelled examples to mixed questions and delayed open response. Independent retrieval after time and topic change is the target.
Praise precise claim control. Narrowing an answer when evidence is incomplete is scientific and academic strength.
Frequently asked questions
Should I memorise the rule?
Memorise the compact rule, then practise examples and near-nonexamples so the conditions remain visible.
What if two answers seem possible?
Return to the exact relationship and choose the option satisfying every stated condition without adding facts.
Why delay practice?
Immediate repetition may depend on the recent explanation; delay tests reconstruction.
How should an error be corrected?
Name the first failed stage and practise it with a changed example.
When is the skill ready?
When the learner can explain, apply and transfer it after a delay.
What is the final audit?
Check relationship, mechanism, claim strength and whole-question fit.
Next routes
Continue at the Science learning hub or return to the series directory.