What students learn in AC9S5U03
This unit helps students build a clear, usable understanding of Sources of light, recognise that light travels in a straight.... The goal is not to memorise one answer pattern. Students should be able to explain the idea, recognise it in a new example and apply it in a short practice or worksheet task.
- Start with the main idea: identify sources of light, recognise that light travels in a straight path and describe how shadows are formed and light can be reflected and refracted.
- Use concrete examples, pictures, oral explanation and short written responses before moving to independent practice.
- distinguishing between natural (such as glow worms, the sun and stars) and artificial (such as light bulbs or candles) sources of light investigating the shadows that are formed when light is completely or partially blocked by an object, such as when using a sundial or shadow puppets
- Finish with mixed questions so students must choose the correct strategy rather than copy the last example.
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 but may not appear in the initial eight-question activity.
- Content description: identify sources of light, recognise that light travels in a straight path and describe how shadows are formed and light can be reflected and refracted
- E1: distinguishing between natural (such as glow worms, the sun and stars) and artificial (such as light bulbs or candles) sources of light
- E2: investigating the shadows that are formed when light is completely or partially blocked by an object, such as when using a sundial or shadow puppets
- E3: drawing ray diagrams to show how the path of light from a source reflects off surfaces into the eye
- E4: observing refraction of light using prisms or water droplets and examining the rainbow effect produced
- E5: exploring how 'holograph' videos use the refractive properties of light to create an image that appears to be 3-dimensional
- E6: exploring the use of reflection of light by mirrors such as in periscopes and mirror mazes
- E7: recognising First Nations Australians’ understanding of refraction as experienced in spearfishing and in shimmering body paint, and reflection as evidenced by materials selected for construction of housing (teaching context)
How to use this unit
Read the topic guide, use the teacher slide for instruction, then complete the Worksheet, Practice and Test. These three activities use the same eight-question unit bank.
Teacher resource
AC9S5U03 teacher slide
Use this one-page PDF to introduce the key idea, vocabulary and teaching sequence before students begin the activities.
Open teacher slide (PDF)Common mistakes to watch for
- Describing what is seen without connecting it to a question, pattern or prediction.
- Using everyday words only and missing simple scientific vocabulary.
- Changing more than one thing in an investigation, which makes the comparison unfair.
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 | AC9S5U03 — identify sources of light, recognise that light travels in a straight path and describe how shadows are formed and light can be reflected and refracted |
| Victoria | Victorian Curriculum F-10 | Year 5 Science: closest match in Physical sciences. Use this page as a VIC-aligned practice and worksheet reference. |
| NSW | NSW Curriculum | Stage 3 Science: closest content focus for Sources of light, recognise that light travels in a straight... and related outcomes. |
| United States | Common Core / NGSS | Grade 5 NGSS science closest topic match for Sources of light, recognise that light travels in a straight.... |
| England / UK | National Curriculum | Key Stage 2 / Year 5: closest programme-of-study match for Sources of light, recognise that light travels in a straight.... |
| Canada | Provincial and territory curricula | Grade 5 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 3 Science: closest achievement-objective topic for Sources of light, recognise that light travels in a straight.... |
| India | NCERT / CBSE | Class 5 closest NCERT/CBSE topic match for Sources of light, recognise that light travels in a straight.... |