Developed in partnership between AERO and Ochre Education, these lesson resources support the use of effective, evidence-based practices and address the learning expected in the Australian Curriculum. An exemplar unit plan provides guidance on the structure, sequence and decision-making made during the planning process.
This sequence of 15 lessons describes the properties of light and sound, and how they interact with the world around us.
Lesson 1 Describe the properties of light
www.edresearch.edu.au/guides-resources/ochre-resources/year-9-science-unit-1-lesson-1Students will learn to describe transverse and longitudinal waves in terms of amplitude, wavelength, period and frequency.
Lesson 2 Describe reflection
www.edresearch.edu.au/guides-resources/ochre-resources/year-9-science-unit-1-lesson-2Students will learn to describe how materials differ in terms of their properties, and describe how light behaves at the boundary of two media (reflection) using ray diagrams.
Lesson 3 Describe refraction
www.edresearch.edu.au/guides-resources/ochre-resources/year-9-science-unit-1-lesson-3Students will learn how light behaves at the boundary of two media (refraction) using ray diagrams and how manipulation of light rays can be used to change the appearance of images.
Lesson 4 Describe total internal reflection
www.edresearch.edu.au/guides-resources/ochre-resources/year-9-science-unit-1-lesson-4Students will learn to investigate the behaviour of light using ray diagrams, including critical angles.
Lesson 5 Describe how lenses work
www.edresearch.edu.au/guides-resources/ochre-resources/year-9-science-unit-1-lesson-5Students will learn to use ray diagrams to describe the image formed by lenses and calculate the magnification of an image formed by a lens.
Lesson 6 Describe dispersion, colour and the EM spectrum
www.edresearch.edu.au/guides-resources/ochre-resources/year-9-science-unit-1-lesson-6Students will learn how a colour is related to absorption, transmission and reflection of different wavelengths of light. They will also learn about the effect of viewing objects through filters; the effect on light of passing through filters; and why an opaque object has a particular colour.
Lesson 7 Understand the phenomenon of diffraction
www.edresearch.edu.au/guides-resources/ochre-resources/year-9-science-unit-1-lesson-7Students will learn to describe the interaction between a gap and the wavelength, and the resultant diffraction and interference.
Lesson 8 Describe how sound waves propagate in air
www.edresearch.edu.au/guides-resources/ochre-resources/year-9-science-unit-1-lesson-8Students will learn to describe processes that convert wave disturbances between sound waves and vibrations in solids. They will also learn why such processes only work over a limited frequency range and the relevance of this to human hearing.
Lesson 9 Describe echoes and superposition
www.edresearch.edu.au/guides-resources/ochre-resources/year-9-science-unit-1-lesson-9Students will learn to define an echo, describe how superposition occurs and its effect on sound.
Lesson 10 Describe how standing waves are formed
www.edresearch.edu.au/guides-resources/ochre-resources/year-9-science-unit-1-lesson-10Students will learn to describe the causes of standing waves and draw diagrams indicating nodes and antinodes.
Lesson 11 Understand pitch and frequency
www.edresearch.edu.au/guides-resources/ochre-resources/year-9-science-unit-1-lesson-11Students will learn to describe how the pitch of sounds is determined and interpret oscilloscope traces for frequency.
Lesson 12 Amplitude and volume
www.edresearch.edu.au/guides-resources/ochre-resources/year-9-science-unit-1-lesson-12Students will learn how the loudness of a sound is determined, and how to interpret oscilloscope traces for amplitude.
Lesson 13 Understand the speed of sound
www.edresearch.edu.au/guides-resources/ochre-resources/year-9-science-unit-1-lesson-13Students will learn to calculate the speed of sound in air, describe and explain how the speed of sound varies in different media in terms of particles.
Lesson 14 Describe the components of the ear
www.edresearch.edu.au/guides-resources/ochre-resources/year-9-science-unit-1-lesson-14Students will learn to identify key structures in the ear and describe how to parts of the ear work together to allow us to hear sound.
Lesson 15 Describe hearing ranges and ultrasound
www.edresearch.edu.au/guides-resources/ochre-resources/year-9-science-unit-1-lesson-15Students will learn what is meant by 'hearing range' and how this differs with age and in different animals; measure the loudness of common sounds using appropriate units; describe what is meant by ultrasound; and state some uses of ultrasound.