A strong idea is specific: a reason a reader can picture, or a detail that surprises. Children in Year 7 now sit the exam in Year 8, in June 2027 Expected, and it ends with 2 writing tasks.
Each example keeps the prompt and swaps a vague idea for a specific one. Read the "before" aloud and ask your child what a reader would still want to know. Then read the "after" together and check whether it tells them.
Worked explanation 1
Write a persuasive piece: should students have a longer lunch break?
Write a persuasive piece: should students have a longer lunch break?
Lunch should be longer because it is good for us. Students would like it. It would be better for everyone.
A longer lunch would give students time to eat properly and still play. Right now, many of us gulp our sandwiches in five minutes so we don't miss the handball game, then sit through maths with sore stomachs. Ten more minutes would fix that.
The "before" gives three reasons that are really one vague one: "it is good". The "after" picks one specific reason and backs it with a detail any reader can picture. One reason explained well does more than three reasons that are only named.
Worked explanation 2
Write a story about something that goes missing.
Write a story about something that goes missing.
Leah lost her library book. She looked everywhere for it. She was very sad. Then she found it under her brother's pillow and she was happy.
The library book had been missing for a week when Leah finally found it, tucked under her little brother's pillow. He couldn't read most of the words yet. But between the pages, he had tucked his own wobbly pencil drawings to go with the story.
The "before" is a complete story, but nothing in it surprises the reader or means anything. The "after" keeps the same simple event and adds an idea: the book was taken for a reason, and that reason tells us something about a character. A small, surprising detail is often what lifts an ordinary story idea.
Worked explanation 3
Is it better to be good at one thing or good at many things?
Is it better to be good at one thing or good at many things?
I think it is better to be good at many things because then you can do lots of things. If you are only good at one thing you can only do one thing. Being good at many things is better.
Being good at many things sounds better, but I think the answer depends on what you mean by "good". My cousin Hamish plays four sports and enjoys them all, but he has never quite made a team. My friend Zara only swims, and she swims at state level. Maybe the best plan is to try many things while you're young, then let one of them pull you in.
The "before" goes round in a circle: each sentence repeats the question as its answer. The "after" tests the question against two real examples and reaches a thoughtful position that is more than "yes" or "no". This is the hardest kind of idea work: noticing that a question has a catch, and saying so clearly.
These examples are ours. ACER doesn't publish a sample writing task, the kinds of writing the tasks ask for, or how they are marked.
Pick the idea with something specific in it, then explain a single reason properly. That holds up against the clock, because a reason with a detail fills a paragraph, while a list of named reasons runs dry in a line.
ACER says the test looks at conveying ideas in precise language, with the ideas organised coherently, and that starts with an idea worth conveying. Both tasks share 40 minutes, so the hunt for it has to be quick. These steps are ours, drawn from the examples above.
Jot a few possible ideas
Spend a moment listing ideas, then pick the one with something specific or surprising in it. The first idea that comes to mind may be the one everyone else has too.
Choose one reason and explain it
One reason backed by a detail a reader can picture does more than three reasons that are only named.
Add the detail that makes it yours
A name, a place or a small surprise, like the drawings tucked into the library book, turns an ordinary event into an idea.
Test a big question against real cases
For a 'which is better' question, try the answer on a real person or event. If the honest answer is 'it depends', say what it depends on.
Say the idea in one sentence
Before writing, your child should be able to say the main point aloud in a single sentence.
The slip to check for is an idea a reader could have guessed before reading a word. Hold each practice piece up against these versions of it, and name the one your child fell into.
Naming reasons without explaining them. In the lunch-break example, "good for us", "students would like it" and "better for everyone" are one vague reason said three ways.
A story with no point. The library book is lost and found, but nothing surprises the reader until the brother's drawings give the event a reason.
Answering the question with the question. "Being good at many things is better because you can do lots of things" goes round in a circle. The stronger version tests the question against two real people.
How can we practise it at home?
These examples show the move. Practice test 1 shows whether your child can find a sharp idea for both tasks inside 40 minutes, and it's free. Compare the ideas afterwards: if the second task's idea is flatter than the first, practise the quick jot-and-choose step.
Ideas grow from noticing things and talking about them. ACER says the exam's skills grow over time, through a culture of learning, varied engaging material and talking freely about ideas.
At dinner, pick a prompt and see who can find the least obvious idea.
Take a flat sentence from your child's writing and ask "which one?" or "why?" until it names something specific.
Read a short opinion piece together and find the detail that makes its point stick.
Keep a notebook of odd things your child notices. They can become story ideas later.
