Scientific Communication for Purpose and Audience — AC9S8I08

• Select genre, register and detail for purpose and audience.
• Link claims and conclusions directly to evidence.
• Use visuals, models and digital tools that clarify rather than decorate.
• Preserve attribution, context and cultural protocols.

Recall claim–evidence–reasoning, graph conventions, source credibility, uncertainty and the limits of conclusions.

Use purpose + audience → genre and structure → scientific register → evidence and reasoning → representation → accurate message.

A formal scientific register is precise and appropriately qualified. Passive voice can focus on a method—“The pH was measured”—but should not be used everywhere. Replace “grew a lot” with “increased by 4.8 cm over 72 hours”.

Hedging words such as suggests, indicates, may and under the tested conditions keep claims within evidence. A report can state that fertilised plants showed a mean growth increase of 18% across three trials rather than saying fertiliser always works.

Explain why methods changed: video timing can reduce reaction-time effects and a larger sample size can reveal variation. Newer technology is not automatically better.

Source labels are not verdicts: peer review does not guarantee perfection, and industry evidence is not automatically unreliable. Compare sample size, method quality, relevance, transparency, possible bias and independent support.

1. Identify the text purpose and audience.
2. Underline the claim and supporting evidence.
3. Replace vague or absolute language with precise qualification.
4. Choose a visual and explain how it adds meaning.

1. Rewrite “the plant grew a lot” using 4.8 cm over 72 hours.
2. Explain when passive voice helps a method description.
3. Write a qualified conclusion using the 18% fertiliser result.
4. Explain why video timing or a larger sample improves a method.
5. State the use and limit of the tectonic-plate puzzle analogy.
6. Plan an infographic that preserves units, uncertainty, sources and cultural protocols.

Create two short explanations of the same battery result: one for Year 6 students and one for laboratory staff. Change vocabulary and detail while keeping values, units, uncertainty and conclusion identical.

1. What can change for an audience? Vocabulary, detail, structure, genre and medium.
2. What must remain accurate? Evidence, meaning, units, uncertainty and attribution.
3. Why qualify conclusions? To keep the message within the tested evidence.
4. What makes a visual useful? It clarifies a relationship or finding without distorting it.

1. Improve “The fertiliser proved plants always grow faster”.
   Use the 18% result, three trials and tested-condition qualification.
2. Evaluate a documentary analogy for plates.
   Explain its useful similarity and stated limitation.
3. Plan communication of First Nations knowledge.
   Identify appropriate source, attribution, context and permission before sharing.

• I adapt texts for audience and purpose.
• I link claims to evidence.
• I use precise, qualified language.
• I select responsible visuals and sources.

Exit ticket: What may change for an audience, and what scientific meaning must not change?

Australian Curriculum v9.0 — AC9S8I08: write and create texts to communicate ideas, findings and arguments for identified purposes and audiences using appropriate scientific language, representations and digital tools.

Victorian Curriculum F–10 Version 2.0 — Levels 7–8, VC2S8I08: Exact.

NSW Science 7–10 Syllabus (2023) — Stage 4, SC4-WS-08: Exact — the NSW Working Scientifically outcome directly align with the core inquiry process.

• AC9S8I07 — Evidence-based arguments
• AC9S8H04 — Science communication and policy

• Australian Curriculum v9.0
• Victorian Curriculum F–10 Version 2.0 Science
• NSW Science 7–10 Syllabus (2023)

Curriculum equivalents for And create texts to communicate ideas, findings and arguments for...

Mapped skill: write and create texts to communicate ideas, findings and arguments for specific purposes and audiences, including selection of appropriate language and text features, using digital tools as appropriate

These references identify matching or closely related learning. Curriculum sequence, terminology and depth vary, so teachers should use the mapped skill and lesson difficulty to confirm suitability.

Australian Curriculum v9.0 is the canonical source for this SkillrHub lesson. Victoria and NSW entries name the closest published state codes or outcomes; international entries are planning references rather than claims of identical curricula.