AC9S3H02 • Year 3 Science

AC9S3H02: Consider how people use scientific explanations to meet a need or solve a problem

consider how people use scientific explanations to meet a need or solve a problem

What students learn in AC9S3H02

Students learn to consider how people use scientific explanations to meet a need or solve a problem. They use the visual model, precise vocabulary and evidence to explain and apply the concept.

Learning routine: Observe → Model → Investigate → Record → Explain

Success looks like

  • Recognise need
  • Use criterion
  • Explain solution
  • Apply in a new context
  • Justify with evidence
Key vocabulary
need
a requirement or problem to address
criterion
a feature a successful solution should have
solution
a designed response to a need or problem
Concept models and worked thinking

Connect insulation science to a practical need

need: keep drink warm→idea: reduce heat transfer→solution: insulated container→test temperature→improve

Use the labels and relationships in the model to explain the central idea.

  1. Read every label and identify what each quantity or feature represents.
  2. Describe the relationship shown by the model.
  3. Check that the conclusion answers the original question.

Evaluate a solution against criteria

CriterionDesign ADesign Bkeeps heatgoodvery goodlightweightvery goodfaircostlowhigher

Transfer the idea to a new example and justify the choice with evidence.

Apply the same relationship to the new context, then justify the answer using the labels and evidence shown.

Curriculum coverage and elaborations

The content description and elaborations below show the curriculum ideas taught in this unit. Items marked as teaching context support lesson planning.

  • Content description: consider how people use scientific explanations to meet a need or solve a problem
  • E1: recognising how First Nations Australians observe and describe developmental changes in plants and animals to make decisions about when to harvest certain resources (teaching context)
  • E2: exploring the history of manure and compost use in agriculture and how composting can help improve soil condition and plant growth
  • E3: investigating how understanding of life cycles of insect pests such as fruit flies led to effective control strategies
  • E4: investigating why salt, was so important to people’s diets, food preservation and medicine in ancient times that it was known as ‘white gold’
  • E5: exploring how science knowledge of heat transfer has helped people develop different ways to cook food, such as by boiling, frying or roasting
  • E6: investigating how engineers test the insulation properties of materials, and how this information is used to design food and beverage packaging, building insulation or clothing
Cultural safety for First Nations elaborations

Use reliable, community-approved sources and identify the specific Nation, People or community where the source does. Do not present diverse First Nations knowledges as one generic tradition. Follow local cultural and intellectual property protocols before reproducing cultural material or inviting community participation.

Guided learning activities

1. Model and notice

Use the visual model to identify need, then explain the important features.

need: keep drink warm→idea: reduce heat transfer→solution: insulated container→test temperature→improve

2. Apply and compare

Apply criterion to a new example and compare the result.

CriterionDesign ADesign Bkeeps heatgoodvery goodlightweightvery goodfaircostlowhigher

3. Create and explain

Create an example using need, criterion and solution.

needcriterionsolution
Revision Notes

Core idea: Students learn to consider how people use scientific explanations to meet a need or solve a problem. They use the visual model, precise vocabulary and evidence to explain and apply the concept.

Remember

  • Recognise need
  • Use criterion
  • Explain solution
  • Apply in a new context
  • Justify with evidence

Important questions

  • Which design uses a scientific explanation to meet a need? Explain using the model or evidence above.
  • Complete the design process. Explain using the model or evidence above.
  • Explain connect insulation science to a practical need. Explain using the model or evidence above.
  • Correct: Solution chosen before understanding need. Explain using the model or evidence above.
How to use this unit

Read the topic guide and use the teacher slide for instruction. Students can then use the worksheet for written work, open Practice for supported feedback, or take the Test when they are ready.

AC9S3H02 teacher slide

Teacher resource

Use this one-page PDF to introduce the key idea, vocabulary and teaching sequence before students begin the activities.

Open Classroom View
Common misconceptions
  • Solution chosen before understanding need — Define the problem and criteria first.
  • Feature named without effect — Explain how the feature changes meaning or outcome.
  • One example treated as a rule — Test the idea with another example.
International curriculum mapping

This table gives closest-topic mapping for search and planning. The Australian Curriculum code is exact; overseas entries are broad equivalents because each jurisdiction structures outcomes differently.

RegionCurriculumClosest mapping
AustraliaAustralian Curriculum v9.0AC9S3H02 — consider how people use scientific explanations to meet a need or solve a problem
VictoriaVictorian Curriculum F-10Year 3 Science: closest match in Use and influence of science. Use this page as a VIC-aligned practice and worksheet reference.
NSWNSW CurriculumStage 2 Science: closest content focus for Consider how people use scientific explanations to meet a need or solve a problem and related outcomes.
United StatesCommon Core / NGSSGrade 3 NGSS science closest topic match for Consider how people use scientific explanations to meet a need or solve a problem.
England / UKNational CurriculumKey Stage 2 / Year 3: closest programme-of-study match for Consider how people use scientific explanations to meet a need or solve a problem.
CanadaProvincial and territory curriculaGrade 3 closest topic match. Canada varies by province, so use this as a broad Ontario/BC-style learning outcome reference.
New ZealandNew Zealand CurriculumLevel 2 Science: closest achievement-objective topic for Consider how people use scientific explanations to meet a need or solve a problem.
IndiaNCERT / CBSEClass 3 closest NCERT/CBSE topic match for Consider how people use scientific explanations to meet a need or solve a problem.
🎥 Optional Video Lesson

The SkillrHub lesson remains the primary learning resource. This optional video reinforces the explanation; you can complete the lesson and practice without watching.

Back to the lesson

Before you watch:

  • Pause after each worked example.
  • Try the examples yourself.
  • Return to the SkillrHub lesson before continuing.
Recommended: What's an Engineer? Crash Course Kids #12.1

Crash Course Kids — Explore how engineers use science to help solve practical problems.

As you watch: What need is a design trying to meet, and what science might help?

Load video player Loads YouTube in this lesson. See the video notice below.

Try it: Name a problem at school, such as keeping a drink cool. Sketch a possible solution and explain the scientific idea it uses.

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Curriculum equivalents: Victoria, NSW and international

Curriculum equivalents for Consider how people use scientific explanations to meet a need...

Mapped skill: consider how people use scientific explanations to meet a need or solve a problem

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.

RegionCurriculum frameworkClosest level or code
AustraliaAustralian Curriculum v9.0AC9S3H02 · Year 3
VictoriaVictorian Curriculum F–10 Version 2.0 — ScienceVC2S4H02 · Levels 3–4
New South WalesNSW Science and Technology K–6 Syllabus (2024)ST2-SCI-01 · Stage 2
United States (USA)Next Generation Science Standards (NGSS)Grade 3
Canada (Ontario)Ontario Curriculum — ScienceGrade 3
United Kingdom (England)National Curriculum in England — ScienceYear 4, Key Stage 2
IndiaNCERT / CBSE — ScienceClass 3

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.

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Official curriculum references
Related Year 3 Science topics