Atoms, Elements & Compounds

ScienceMatter & MaterialsAges 11–12

Explain the differences between atoms, elements, and compounds; describe the simple Bohr model of the atom (nucleus with protons and neutrons, electrons in shells); and write and interpret chemical symbols and simple formulae

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Teaching Table

Set out your lesson

Practise the bounded task in Atoms, Elements & Compounds; see exact limits before inferring broader coverage.

Activity

Can distinguish symbol, subscript and object; models are simplified, not literal tiny solar systems.

Policy

Exact directed source edges retained; earlier authorship is not learner attainment.

Materials

These supplied stage cards
Scrap paper and pencil; oral/pointing response where appropriate

Sequence

Read readiness and decide on support without treating prerequisite authoring as learner readiness.
Open Show first and explain its model.
Use Guided Try with support and its separate adult key.
Close Show and guided keys before Try, unless this Try is explicitly supported.
Reflect on an actual attempt, including help used.

No Printer

Use the supplied screen cards; copying the exact task to paper is optional, not required.

Privacy

Use only invented scenarios and optional anonymous local notes. Do not request names, photos, family finances, medical data, accounts or uploads. Stop uncomfortable physical activity.

Use the complete materials on screen or print only the current sheet. Keep adult guidance out of learner view. Retain an earlier model only when the current step supplies it as context.

Teaching limits and safe use

These are finite task opportunities, not proof of mastery. Record what was attempted and what support was used.

Simple formulas and a supplied helium-4 model; no quantum mechanics, chemical bonding mechanisms or practical chemistry.

Use only invented scenarios and optional anonymous local notes. Do not request names, photos, family finances, medical data, accounts or uploads. Stop uncomfortable physical activity.

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Entire curriculum

1590 concepts · 8 subjects

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Teaching approaches

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Practise the bounded task in Atoms, Elements & Compounds; see exact limits before inferring broader coverage.

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Learning resources

External links for extra practice. They do not replace Gakuva’s teaching approach.

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Check understanding

Defines atom, element, and compound and distinguishes between them with examples
Draws a simple Bohr model of an atom labelling nucleus (protons/neutrons) and electron shells
Reads a chemical formula to identify the elements and number of each atom (e.g. H₂O, CO₂, NaCl)
Identifies the difference between a mixture and a compound

“If your child saw the formula H₂O on a label, could they explain what it means — which atoms are involved, how many of each, and why water is a compound rather than just a mixture of hydrogen and oxygen?”

Curriculum record

Type: Conceptual
Subject: Science
Domain: Matter & Materials
Age range: Ages 11–12

Standards

ngss-ms:MS-PS1-1uk-nc-2013:KS3.Sci.Chem.AEC.1uk-nc-2013:KS3.Sci.Chem.AEC.2uk-nc-2013:KS3.Sci.Chem.AEC.3