Wait, What? Explaining Is Different From Describing
A Primary 3 learner may know many facts about a topic and still struggle to explain it. Description tells what something is like. Explanation shows how or why something happens. The reader should be able to follow a process, cause or relationship from one stage to the next.
Strong explanatory writing therefore depends on logic. The writer needs a bounded question, accurate sequence, precise vocabulary and enough cause-and-effect language to make the mechanism visible.
An explanation succeeds when the reader can follow the reason or process, not merely collect the facts.
Quick Answer
Use this explanatory-writing circuit:
QUESTION → MAIN IDEA → STAGE/CAUSE → RELATIONSHIP → NEXT STAGE/RESULT → PRECISE TERMS → CHECK → SUMMARY.
This workshop extends Nonfiction and Informational Reading and Informational and Functional Writing.
Owned Primary 3 Learning Job
This guide owns one broad job: helping a Primary 3 learner write clear explanations of how and why by organising causes, processes and results into a coherent sequence with precise language.
The Official Singapore Primary-English Frame
Singapore’s English Language Syllabus 2020 for Primary develops writing for purpose, audience and context and connects language with learning across subjects. The explanatory-writing routines in this guide are eduKate teaching scaffolds rather than an official MOE science or English writing rubric.
Official reference: MOE English Language Syllabus 2020 Primary.
Layer 1: Start With a How or Why Question
Explanatory writing is easier when the question is bounded.
- How does a rain gauge collect rainfall?
- Why does a shadow change position?
- How does a library classification system help readers find books?
- Why do wet clothes dry faster in moving air?
The child should know exactly what needs to be explained before collecting details.
Layer 2: Description Answers What; Explanation Answers How or Why
Description: “A rain gauge is a container with measurement markings.”
Explanation: “Rain falls into the container and collects there. The markings allow the amount of rainfall to be read and recorded.”
The first identifies features. The second connects features to function.
Layer 3: Main Idea First
Before writing details, state the broad explanation in one sentence.
Question: Why do puddles disappear after rain?
Main explanation: “Water in a puddle can gradually evaporate into the air, especially when conditions support faster evaporation.”
Later sentences can explain the conditions more carefully.
Layer 4: Cause and Effect Need Direction
Cause comes before result in the logic, even if the sentence order changes.
“The ground receives strong sunlight, so surface water warms and may evaporate more quickly.”
“Surface water may evaporate more quickly because the ground receives strong sunlight.”
Both sentences preserve the same relationship.
Layer 5: Processes Need Sequence
Useful sequence words include:
- first;
- next;
- then;
- after;
- as;
- when;
- eventually;
- finally.
The writer should use enough sequence language to make order visible without beginning every sentence with a marker.
Layer 6: Precise Vocabulary Matters More Than Fancy Vocabulary
Explanations rely on accurate nouns and verbs. Water moves may be too vague if the process is evaporation. Heat goes into it may need clearer wording such as the surface absorbs energy from sunlight depending on the child’s curriculum and topic.
Use school-approved subject vocabulary where required. The English job is to connect the terms clearly.
Layer 7: Paragraphs Can Follow Explanation Stages
| Paragraph | Possible job |
|---|---|
| 1 | introduce the question and broad answer |
| 2 | first cause or stage |
| 3 | next stage or important condition |
| 4 | result and summary |
Longer explanations may need more stages. The child should group ideas according to mechanism rather than arbitrary sentence count.
Layer 8: Connectors Should Match the Relationship
| Relationship | Useful language |
|---|---|
| cause | because, since |
| result | so, therefore, as a result |
| sequence | first, next, after, when |
| condition | if, when, unless |
| contrast | but, however, while |
Layer 9: Diagrams Can Support Explanation
A labelled diagram can reduce writing load when spatial relationships matter. The written explanation should still tell the reader what changes and why. A diagram without explanatory language may show parts without showing mechanism.
Layer 10: Use Examples Carefully
An example should clarify the general explanation rather than replace it.
General idea: moving air can support faster drying.
Example: clothes on a breezy balcony may dry faster than similar clothes in still, humid air, depending on conditions.
The writer should not confuse one example with a complete explanation.
Layer 11: Explanation Needs Evidence or Accepted Knowledge
When a child writes across subjects, the factual content should come from reliable teaching material, observations, class notes or approved sources. English fluency cannot repair a scientific misunderstanding.
Teach the learner to separate two jobs:
- Is the information accurate?
- Is the explanation clear?
Layer 12: Avoid Circular Explanations
Weak: “The plant grew because it grew well.”
Controlled: “The plant received enough light and water for continued growth, so new leaves developed over time.”
The second explanation identifies conditions and result rather than repeating the claim.
Worked Example 1: Why Does a Queue Move Faster When More Counters Open?
Broad answer: More counters allow several customers to be served at the same time.
Explanation: When only one counter is open, every customer waits for the same server. If a second counter opens, the queue can split and two customers can be served at once. As a result, the waiting line may move more quickly, although the exact speed also depends on how long each transaction takes.
The explanation preserves mechanism and a sensible condition.
Worked Example 2: How Does a School Library Loan Work?
First, a reader selects a book and brings it to the loan counter or self-check station. The book’s code and the reader’s account are recorded together. This tells the library who has borrowed the item and when it should be returned. When the book is returned, the loan record is closed and the book can be made available to another reader.
The explanation follows a process and explains the purpose of each record rather than listing actions only.
Complete Original Explanatory Model: How a Classroom Lost-and-Found System Works
A lost-and-found system helps pupils return misplaced items to their owners. When someone finds an item, it is first placed in a labelled collection box rather than being left where it was found. This gives the class one known place to check.
Next, pupils record a short description of the item, such as its colour, type and where it was found. The description helps distinguish similar objects. For example, two water bottles may both be blue, but one may have a name sticker.
When a pupil claims an item, the description can be checked before it is returned. If no one claims the object after an agreed period, the teacher can decide what should happen next according to school rules.
The system works because it gives found items a common location and creates enough information to match them to the correct owner.
Why the Model Works
- the first sentence states purpose;
- each paragraph explains one stage;
- sequence and cause are explicit;
- an example clarifies identification;
- the final paragraph returns to the mechanism;
- there is no unrelated storytelling.
Planning in Six Questions
- What exactly am I explaining?
- What is the broad answer?
- What happens first or what causes it?
- What happens next?
- Which condition or detail matters?
- What result or final relationship should the reader understand?
The Mechanism Test
After writing, cover the explanation and ask the reader to explain how or why the process works. If the reader can only repeat facts but cannot connect them, the relationships need revision.
The Missing-Link Test
Read each pair of neighbouring sentences and ask, “Can I explain how sentence two follows sentence one?” If the answer is no, the paragraph may need a connector, missing cause, missing stage or reordered sentence.
A Four-Week Explanatory Writing Cycle
| Week | Main focus | Evidence of progress |
|---|---|---|
| 1 | how/why questions and broad answers | child distinguishes explanation from description |
| 2 | cause, result and sequence | relationships become explicit and correctly directed |
| 3 | precise vocabulary and paragraph stages | technical terms support rather than obscure meaning |
| 4 | revision and cross-subject transfer | child explains a new process without copying a model structure word for word |
Common Primary 3 Explanation Traps
- Listing facts without explaining relationships.
- Describing what something looks like instead of how it works.
- Reversing cause and effect.
- Using sequence words without real sequence.
- Using technical vocabulary the child cannot explain.
- Adding an example but never stating the general rule.
- Writing circular explanations.
- Mixing a narrative story into a process explanation.
- Using accurate English to express inaccurate subject knowledge.
Student Explanation Receipt
- I can state the how or why question.
- I can give a broad answer before details.
- I can show cause and result clearly.
- I can organise a process in sequence.
- I can use precise subject vocabulary.
- I can explain what each stage does.
- I can use an example to clarify a general idea.
- I can identify a missing link between sentences.
- I can finish with the main mechanism or result.
- I can explain a new topic using the same reasoning process.
Parent and Tutor Use
Ask the child to explain an everyday system orally: how a lift call button works as part of a journey, why queues form, how a school book loan is recorded, or how a simple classroom routine prevents confusion. Listen for missing relationships before correcting grammar.
The Primary 4 Bridge
Primary 4 learning increasingly asks pupils to explain mechanisms and reasons across subjects. The strongest bridge is a Primary 3 writer who can organise knowledge into causes, stages and results rather than presenting facts as a list.
Evidence Boundary
The explanatory-writing circuits, models and planning routines in this guide are eduKate teaching scaffolds. They are not official MOE science-answering rubrics or English examination templates. Subject-specific accuracy should follow school teaching and reliable sources.
Continue the Primary 3 English Learning Guide
- Personal Recount Writing: Chronology, Significant Moments, Reflection and Voice
- Opinion Writing: Claim, Reasons, Examples, Audience and Revision
- Procedural Writing: Goal, Materials, Sequence, Conditions and Testing
- Primary English Learning Hub
The Quiet Return
An explanation is successful when the reader can follow the mechanism without the writer standing beside the page.
Ask the how or why. State the broad answer. Show the cause or first stage. Connect every step. Use precise terms. Finish with the result. Then change the topic and see whether the explanation still works.
