Properties of materials
Compare and group different kinds of rocks based on their appearance and simple physical properties such as hardness, texture, and colour
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Teaching Table
Set out your lesson
Group rocks by observable properties without guessing a rock type.
Ask the learner to explain one prerequisite idea before starting. If uncertain, revisit it; graph order is not learner readiness.
Check readiness rather than assuming source graph order establishes attainment.
Use fictional specimen cards or adult-selected clean safe rocks. No breaking, tasting, dust-making or acid tests. Observe only; hardness not inferred from colour.
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: Compare and group different kinds of rocks based on their appearance and simple physical properties such as hardness, texture, and colour
Bounded objective: Group rocks by observable properties without guessing a rock type. Fictional properties, not physical specimens. Real collection sorting and hardness measurement conditional/not performed.
- partial: Describe at least three observable properties of rocks: hardness, texture, colour, grain size
Colour/texture/grain size supplied; actual hardness unmeasured.
- partial: Sort a collection of rocks into groups based on chosen properties
Fictional collection sorted by stated property, not real rock handling.
- partial: Compare two rocks and describe how their properties differ
E/F differences compared from complete cards.
- partial: Can {{name}} examine a collection of rocks and sort them by whether they're hard or crumbly, rough or smooth, and light or dark?
Try offers new-supplied-data-classification for the bounded objective; it does not establish every part of the source assessment. Fictional properties, not physical specimens. Real collection sorting and hardness measurement conditional/not performed.
Fictional properties, not physical specimens. Real collection sorting and hardness measurement conditional/not performed.
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Teaching approaches
Gakuva’s recommended starting approach is selected. You can still compare every option.
1 approach
Group rocks by observable properties without guessing a rock type.
Group rocks by observable properties without guessing a rock type.
Family records and proof options
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Learning resources
External links for extra practice. They do not replace Gakuva’s teaching approach.
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The teaching approach appears above.
Check understanding
- Describe at least three observable properties of rocks: hardness, texture, colour, grain size
- Sort a collection of rocks into groups based on chosen properties
- Compare two rocks and describe how their properties differ
“Can your child examine a collection of rocks and sort them by whether they're hard or crumbly, rough or smooth, and light or dark?”
Curriculum record
- Type
- Conceptual
- Subject
- Science
- Domain
- Earth's Systems
- Age range
- Ages 7–8
Standards