AC9S3I02: Use provided scaffolds to plan and conduct investigations to answer questions or test predictions, including identifying the elements of fair tests, and considering the safe use of materials and equipment
use provided scaffolds to plan and conduct investigations to answer questions or test predictions, including identifying the elements of fair tests, and considering the safe use of materials and equipment
Students learn to use provided scaffolds to plan and conduct investigations to answer questions or test predictions, including identifying the elements of fair tests, and considering the safe use of materials and equipment. They use the visual model, precise vocabulary and evidence to explain and apply the concept.
Learning routine: Observe → Model → Investigate → Record → Explain
Use the labels and relationships in the model to explain the central idea.
Read every label and identify what each quantity or feature represents.
Describe the relationship shown by the model.
Check that the conclusion answers the original question.
Build a safe procedure
check hazards→choose equipment→write steps→teacher check→conduct→clean up
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: use provided scaffolds to plan and conduct investigations to answer questions or test predictions, including identifying the elements of fair tests, and considering the safe use of materials and equipment
E1: collaboratively identifying and ordering the steps in an investigation
E2: using a provided framework or graphic organiser to plan and identify what to change, what to keep the same and what to measure to make a test fair
E3: examining an example of a soil profile after soil has settled in water and planning an investigation to compare and contrast the components and particle sizes of different soils
E4: planning an investigation to determine which material is the best to keep substances cold
E5: discussing safety rules to follow when conducting investigations, such as following teacher instructions, manipulating equipment and materials with care and wearing appropriate personal safety gear, such as gloves, safety goggles and face masks when handling soils
E6: consulting with First Nations Australians to guide the planning of scientific investigations, including safety considerations for field investigations (teaching context)
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 changed variable, then explain the important features.
Core idea: Students learn to use provided scaffolds to plan and conduct investigations to answer questions or test predictions, including identifying the elements of fair tests, and considering the safe use of materials and equipment. They use the visual model, precise vocabulary and evidence to explain and apply the concept.
Remember
Recognise changed variable
Use measured variable
Explain controlled variable
Apply in a new context
Justify with evidence
Important questions
In a test of paper-towel brands, what should be changed? Explain using the model or evidence above.
Complete the fair-test rule. Explain using the model or evidence above.
Explain plan a fair paper-towel test. Explain using the model or evidence above.
Correct: Several factors changed. 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.
AC9S3I02 teacher slide
Teacher resource
Use this one-page PDF to introduce the key idea, vocabulary and teaching sequence before students begin the activities.
Several factors changed — Change one tested factor at a time.
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.
Region
Curriculum
Closest mapping
Australia
Australian Curriculum v9.0
AC9S3I02 — use provided scaffolds to plan and conduct investigations to answer questions or test predictions, including identifying the elements of fair tests, and considering the safe use of materials and equipment
Victoria
Victorian Curriculum F-10
Year 3 Science: closest match in Planning and conducting. Use this page as a VIC-aligned practice and worksheet reference.
NSW
NSW Curriculum
Stage 2 Science: closest content focus for Use provided scaffolds to plan and conduct investigations to answer questions or test predictions, including identifying the elements of fair tests, and considering the safe use of materials and equipment and related outcomes.
United States
Common Core / NGSS
Grade 3 NGSS science closest topic match for Use provided scaffolds to plan and conduct investigations to answer questions or test predictions, including identifying the elements of fair tests, and considering the safe use of materials and equipment.
England / UK
National Curriculum
Key Stage 2 / Year 3: closest programme-of-study match for Use provided scaffolds to plan and conduct investigations to answer questions or test predictions, including identifying the elements of fair tests, and considering the safe use of materials and equipment.
Canada
Provincial and territory curricula
Grade 3 closest topic match. Canada varies by province, so use this as a broad Ontario/BC-style learning outcome reference.
New Zealand
New Zealand Curriculum
Level 2 Science: closest achievement-objective topic for Use provided scaffolds to plan and conduct investigations to answer questions or test predictions, including identifying the elements of fair tests, and considering the safe use of materials and equipment.
India
NCERT / CBSE
Class 3 closest NCERT/CBSE topic match for Use provided scaffolds to plan and conduct investigations to answer questions or test predictions, including identifying the elements of fair tests, and considering the safe use of materials and equipment.
🎥 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.
Recommended: Designing a Trial: Crash Course Kids #44.1
Crash Course Kids — Plan a fair comparison by changing one factor and keeping others the same.
As you watch: Which things must stay the same if you compare two designs fairly?
Load video playerLoads YouTube in this lesson. See the video notice below.
Try it: With an adult, plan a safe paper-ramp test. List one thing to change, what to keep the same and what you will measure.
Video unavailable, inaccurate or unsuitable for this year? Report a video problem to SkillrHub by email. You can continue with the written lesson and practice resources.
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Curriculum equivalents: Victoria, NSW and international
Curriculum equivalents for Provided scaffolds to plan and conduct investigations to answer questions...
Mapped skill: use provided scaffolds to plan and conduct investigations to answer questions or test predictions, including identifying the elements of fair tests, and considering the safe use of materials and equipment
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.
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Topic reference: AC9S3I02 — AC9S3I02: Use provided scaffolds to plan and conduct investigations to answer questions or test predictions, including identifying the elements of fair tests, and considering the safe use of materials and equipment