Pitch of Sounds

ScienceWaves, Light & SoundAges 8–9

Find patterns between the pitch of a sound and features of the object that produced it

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Teaching Table

Set out your lesson

Compare pitch while changing one feature at a time.

Activity

Ask the learner to explain one prerequisite idea before starting. If uncertain, revisit it; graph order is not learner readiness.

Policy

Check readiness rather than assuming source graph order establishes attainment.

Instructions

Optional flexible ruler over a table edge, held securely by an adult and gently plucked. No brittle ruler, snap-back band, loud sound or object near face. If unsafe/unavailable, use supplied cases only.

No Printer

Use the supplied stage cards on screen or scrap paper; adult key stays separate.

Materials are ready in each step. Use them on screen or print just the current step. Put teaching examples aside before the learner tries.

What this lesson covers and its limits

These are bounded opportunities, not learner attainment. Partial and blocked source requirements remain so.

partial: Find patterns between the pitch of a sound and features of the object that produced it
Bounded objective: Compare pitch while changing one feature at a time. Real sound demonstration conditional; broad shorter/thinner/tighter canonical rule qualified by controlled properties. Research search failed; no invented experimental evidence.
partial: Describe the pattern: shorter/thinner/tighter objects produce higher-pitched sounds
Length/tension rules qualified by controlled properties; thinner rule not tested.
partial: Demonstrate pitch changes using at least one instrument or everyday object
Safe ruler comparison conditional; supplied prediction not an observation.
partial: Explain pitch as how high or low a sound is, determined by how fast the object vibrates
Faster vibration linked to higher pitch; no measured frequency.
partial: Can {{name}} explain why a short guitar string makes a higher sound than a long one, or why a small drum sounds higher than a big one?
Try offers supported-model-application for the bounded objective; it does not establish every part of the source assessment. Real sound demonstration conditional; broad shorter/thinner/tighter canonical rule qualified by controlled properties. Research search failed; no invented experimental evidence.

Real sound demonstration conditional; broad shorter/thinner/tighter canonical rule qualified by controlled properties. Research search failed; no invented experimental evidence.

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Compare pitch while changing one feature at a time.

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Check understanding

Describe the pattern: shorter/thinner/tighter objects produce higher-pitched sounds
Demonstrate pitch changes using at least one instrument or everyday object
Explain pitch as how high or low a sound is, determined by how fast the object vibrates

“Can your child explain why a short guitar string makes a higher sound than a long one, or why a small drum sounds higher than a big one?”

Curriculum record

Type: Conceptual
Subject: Science
Domain: Waves, Light & Sound
Age range: Ages 8–9

Standards

uk-nc-2013:Y4.Sci.Snd.3