Year 3 Science · AC9S3H02

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

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…

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Learning goalsSay it simply

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
Clean visual examplesOne-page board

Clean one-page examples

AC9S3H02 - Consider how people use scientific explanations to meet a need or solve a problem
Example 1

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

Example 2

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

Example 3

2. Apply and compare Apply criterion to a new example and compare the result. Criterion Design A Design B keeps heat good very good lightweight very good fair cost low higher

Example 4

3. Create and explain Create an example using need, criterion and solution. need criterion solution

Curriculum examplesCopied content

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
Questions and answersWith answers

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.
Practice and reviewReady for practice
  • 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.

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.

Curriculum alignmentStart here

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
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