Wait, What? Explaining Is Not Listing Facts
A learner can know many facts about a topic and still write a weak explanation. Facts tell the reader what exists. An explanation shows how the parts connect, why a result occurs, what changes first, what depends on what, and where the process stops.
Primary 5 is an important stage for explanatory writing because reading increasingly contains mechanisms, systems, causes, comparisons and procedures. The same language used to explain a school experiment can later support Science, Mathematics, Geography, history, project work and oral presentations.
An explanation succeeds when the reader can rebuild the relationship, not merely repeat the facts.
Quick Answer
- Identify the question. Is it asking how, why, what causes, what changes or what process occurs?
- Name the system. What are the important parts?
- Find the relationship. Cause, sequence, condition, comparison or feedback?
- Use precise verbs. What actually happens?
- Use technical words only when they improve accuracy.
- Make hidden steps visible.
- Check for false certainty.
- Test the explanation on a reader who was not there.
The Explanation Control Map
| Control | Main question | Common failure |
|---|---|---|
| Purpose | What must the reader understand? | answers a different question |
| Cause | Why does this happen? | lists events without relationships |
| Sequence | What happens first, next and later? | steps appear out of order |
| Condition | What must be true? | presents a conditional result as automatic |
| Vocabulary | Which technical words are necessary? | uses difficult words without explanation |
| Precision | What exactly changes? | uses vague verbs such as does, gets, happens |
| Reader test | Could someone else reconstruct the mechanism? | important link remains inside writer’s head |
How Questions and Why Questions
How often asks for mechanism or sequence. Why often asks for cause, purpose or reason. The two can overlap, but the writer should know which relationship matters most.
Question: How does a reusable bottle reduce single-use plastic waste?
Useful route: repeated reuse → fewer disposable bottles needed → less single-use packaging entering waste streams.
Question: Why might a reminder system increase the number of pupils bringing reusable bottles?
Useful route: forgetting is one barrier → reminder increases retrieval of intention → more pupils remember to bring bottle.
Cause Is Not Sequence
“The bell rang. The pupils left the room.” The second event follows the first, but the writer should still ask whether the bell caused the movement or merely happened before it. Good explanatory writing protects the difference between after and because.
Chronology: After the bell rang, the pupils left.
Causality: Because the bell signalled the end of the lesson, the pupils left.
The Mechanism Chain
A strong explanation often follows:
INPUT → CHANGE → INTERMEDIATE EFFECT → RESULT.
Example: Rain falls on dry soil → water enters the soil → roots can absorb more water → plant cells regain water pressure → drooping leaves may become firmer.
The chain makes the hidden middle visible. Without the intermediate steps, the explanation becomes “Water makes plants healthy”, which is too broad to teach much.
Original Explanation 1: Why Staggered Dismissal Can Reduce Crowding
When every class leaves at the same time, many pupils reach the same gate within a short period. The available space does not increase, so the number of people using it at once becomes large. If different groups are released a few minutes apart, their movement is spread across time. Fewer pupils then arrive at the gate simultaneously, which can reduce crowding.
The system does not guarantee that the gate will never be crowded. A delay elsewhere could cause groups to overlap again. The explanation therefore needs a condition: staggered timing can reduce crowding when the groups remain sufficiently separated.
What Makes the Explanation Precise?
- It identifies the bottleneck: the gate.
- It explains why simultaneous arrival matters.
- It shows what staggering changes: distribution across time.
- It avoids claiming that crowding becomes impossible.
- It includes a condition under which the benefit works.
Processes Need Boundaries
A process explanation should tell the reader where the process begins and what counts as completion. “How paper is recycled” could become enormous. A Primary 5 task may instead ask, “How does used classroom paper become reusable draft paper?” The bounded version allows a clearer mechanism.
Sequence Language
- first
- before
- after
- once
- while
- next
- during
- finally
Use sequence words where they clarify order. Do not force one at the start of every sentence. The reader should feel a process, not a numbered chant.
Cause-and-Effect Language
- because
- therefore
- as a result
- leads to
- causes
- allows
- prevents
- reduces
- increases
- depends on
Choose verbs according to evidence. Causes is stronger than is associated with. Prevents is stronger than reduces the chance of. Precision includes knowing when not to overstate.
Technical Vocabulary Should Compress Meaning
A technical term earns its place when it lets the writer express something more accurately or efficiently.
Without term: “Water changes from liquid into a gas and moves into the air.”
With term: “During evaporation, liquid water changes into water vapour and enters the air.”
The term evaporation is useful because it names the process. But the sentence still explains what the process means.
Define the Term Where Needed
Audience matters. If the intended reader may not know bottleneck, the writer can define it through context: “The narrow gate acts as a bottleneck because many pupils must pass through a small space.”
Precise Verbs Matter More Than Decorative Vocabulary
| Vague | More precise |
|---|---|
| things happen | pressure increases |
| water goes up | water vapour rises / warm air carries moisture upward |
| the plant gets water | roots absorb water |
| the crowd gets less | the number of people arriving at once decreases |
| the bridge gets stronger | the wider base distributes the load more effectively |
Original Explanation 2: Why a Wider Base Can Make a Model More Stable
A model with a narrow base can become unstable because a small sideways movement may shift its weight beyond the area supporting it. When the base is widened, the supporting area increases. The model can then tolerate a larger sideways shift before the weight moves beyond that support. A wider base therefore often increases stability, although the result also depends on factors such as height, weight distribution and the strength of the material.
This explanation does not say “wide is always stable”. It identifies a mechanism and then protects the conditions around it.
Hidden Steps Are the Most Common Explanation Gap
Writer’s mind: “The reminder helps because people remember.”
Reader needs: What is being remembered? When is the reminder received? How does it change action?
Expanded: “A reminder sent shortly before school can bring the intention to pack a reusable bottle back into attention. This increases the chance that the pupil acts before leaving home.”
The Missing-Link Test
- Underline the beginning state.
- Underline the final result.
- Cover the middle.
- Ask whether the result seems to jump magically from the beginning.
- If yes, add the smallest missing mechanism.
Reader Testing
Give the explanation to someone who did not see the original lesson. Ask the reader to answer:
- What starts the process?
- What changes first?
- Why does the next change happen?
- What is the final result?
- What condition or limitation matters?
If the reader cannot reconstruct the mechanism, the writing needs another link.
Explanation Paragraph Architecture
| Paragraph job | Possible content |
|---|---|
| 1 | Define the system or question |
| 2 | Explain first cause or stage |
| 3 | Show intermediate relationship |
| 4 | Explain result or consequence |
| 5 | Add condition, limitation or comparison |
This is a planning aid, not a fixed template. Some mechanisms need one paragraph; others need six.
Explain With Diagrams and Words
When a process includes movement, spatial relationships or multiple stages, a diagram can help. But the writing should still explain the relationship rather than merely point to the picture.
Weak: “As shown in the diagram, water goes here.”
Stronger: “Water enters through the upper opening and flows down the channel because the outlet is lower.”
Compare Explanations, Not Just Objects
Suppose two classroom reminder systems are compared. One uses a printed checklist; another uses a digital notification. A useful explanation asks how each system gets information back into attention, what conditions it depends on and what can fail.
This moves comparison from surface description into mechanism.
Avoid False Precision
Specific numbers sound authoritative, but they should not be invented. If a task gives no evidence that “90% of pupils improved”, do not create a statistic to strengthen the explanation. Precision means accuracy, not decoration with numbers.
Explanation Versus Opinion
Explanation: “Staggering dismissal can reduce the number of pupils arriving at the gate at once.”
Opinion: “Staggered dismissal is the best system for every school.”
The first explains a mechanism. The second evaluates options and requires criteria and evidence.
Explanation Versus Procedure
Explanation: “A wider base can increase stability because the supporting area is larger.”
Procedure: “Cut a second cardboard strip and attach it across the base.”
One explains why. The other tells the reader what to do.
Original Practice Task 1
Explain why a queue may move faster after a second service counter opens.
Key relationship: one stream of customers can be divided between two counters, so more people may be served during the same period if both counters remain active.
Original Practice Task 2
Explain how a class book-swap system could prevent one pupil from taking many books before others have a chance.
Possible mechanism: one token per contributed book → tokens limit number taken → supply remains available to more participants.
Original Practice Task 3
Explain why checking soil before watering may be better than watering every planter at the same time each day.
Useful relationships: different drying rates, weather, sunlight, actual condition, targeted watering, reduced waste.
Revision Pass 1: Relationship
- Did I answer how or why?
- Is the cause explicit?
- Can the reader see the sequence?
- Did I preserve conditions and limitations?
- Is any result stronger than the evidence allows?
Revision Pass 2: Precision
- Can vague verbs be replaced?
- Are technical terms accurate?
- Are pronouns clear?
- Are quantities and comparisons precise?
- Did I invent unsupported numbers?
Revision Pass 3: Reader Test
- What does the reader know before reading?
- Which term needs defining?
- Where might a hidden step remain?
- Could someone reconstruct the mechanism from my writing alone?
Explanation Error Codes
| Code | Error | Repair question |
|---|---|---|
| LIST | facts listed without relationship | What connects these facts? |
| CAUSE | cause missing | Why does the next change happen? |
| SEQ | sequence unclear | What happens first? |
| LINK | hidden middle step | What must happen between input and result? |
| TERM | technical word unexplained | Would the reader know what this term means? |
| VAG | verbs too vague | What exactly changes or moves? |
| CERT | claim too certain | Should I say can, may, often or always? |
| NUM | false precision | Where did this number come from? |
A 20-Minute Explanatory Writing Workout
- Choose one how-or-why question.
- Write the beginning state and result.
- Add the intermediate mechanism.
- Name one condition.
- Replace three vague verbs with precise ones.
- Define one technical term if needed.
- Read the explanation to someone else.
- Ask that reader to reconstruct the process.
- Repair the first missing link.
Parent Use
Ask simple real-world questions: “Why does the bathroom mirror fog after a hot shower?” “How does a queue-number system help organise waiting?” “Why does spreading books across a wider base change a model?” The goal is not perfect technical vocabulary at first. It is making the relationship visible.
Tutor Use
Use one explanation across subjects. Let learners explain a Science process, a classroom system and a Mathematics method. Ask what stays the same: sequence, cause, condition, precise verbs and reader testing.
Primary 5 Explanatory Writing Checklist
- I know whether the question asks how or why.
- I can identify the important parts of the system.
- I show cause rather than only sequence.
- I include hidden intermediate steps.
- I use technical vocabulary when it improves accuracy.
- I use precise verbs.
- I preserve conditions and limitations.
- I avoid invented statistics.
- I test whether another reader can reconstruct the mechanism.
- I revise the explanation from relationship before grammar.
The Primary 5 English Series
- Personal Recount Writing
- You are here: Explanatory Writing: How, Why, Cause, Process and Precision
- Opinion Writing: Claim, Reasons, Examples, Audience and Revision
- Procedural Writing: Goal, Materials, Sequence, Conditions and Testing
- Return to the Primary English Learning Hub
Official Reference
This eduKate guide is an educational learning framework, not an official marking scheme. Refer to the MOE English Language Syllabus 2020 Primary for the official curriculum framework.
The Quiet Return
Explanatory writing becomes strong when the writer makes invisible relationships visible. Name the system. Show what changes. Connect cause to result. Add the missing middle. Protect the conditions. Then test whether another person can rebuild the mechanism from the words.
A good explanation does not merely tell the reader more. It makes the reader able to see how the parts work together.
