All Johnstone's model articles – Page 2

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Echdynnu tun o dun ocsid | Taflenni gwaith triongl Johnstone | 14–16 oed

Cyflwyno cyfrifiadau gan ddefnyddio masau sy’n adweithio yng nghyd-destun echdynnu tun o dun ocsid
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Diffusion and chemical reactions | Developing understanding | 11–14 years

Use this worksheet to deepen understanding of diffusion and chemical reactions and how these processes are represented
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Diffusion and dissolving | Developing understanding | 11–14 years

Deepen learners’ understanding of diffusion and dissolving with this worksheet exploring different conceptual levels of thinking
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Diffusion of colour in water | Johnstone’s triangle worksheets | 11–14 years

Use this worksheet to develop learners’ understanding of diffusion as they observe coloured dyes diffusing in water
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Melting and boiling | Johnstone’s triangle worksheets | 11–14 years

Develop learners’ understanding of melting and boiling with this worksheet, including a teacher demonstration for learners to observe
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Melting and boiling points | Developing understanding | 11–14 years

Deepen understanding of melting and boiling points and how these are represented at different conceptual levels of thinking
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Dissolving salt | Johnstone’s triangle worksheets | 11–14 years

Use this worksheet to develop learners’ understanding of solutions as they observe how salt and sand behave in water
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Solutions | Developing understanding | 11–14 years

Encourage learners to deepen their understanding of solutions and how they are represented at different conceptual levels of thinking
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States of matter | Developing understanding | 11–14 years

Encourage learners to deepen their understanding of states of matter and how they are represented at different conceptual levels of thinking
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States of matter | Johnstone’s triangle worksheets | 11–14 years

Use this worksheet to develop learners’ understanding of states of matter, including a teacher demonstration
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Isotopes of hydrogen | Johnstone’s triangle | 14–16 years

Use this worksheet to develop learners’ understanding of atoms and isotopes by considering ‘heavy water’ ice cubes
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Atomau ac isotopau | Datblygu dealltwriaeth | 14–16 oed

Anogwch y dysgwyr i ddyfnhau eu dealltwriaeth o isotopau o’r lefel facrosgopig i’r lefel is-ficrosgopig
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Atoms and isotopes | Developing understanding | 14–16 years

Encourage learners to deepen their understanding of isotopes from the macroscopic to sub-microscopic level
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Atoms and ions | Developing understanding | 14–16 years

Encourage learners to think about how atoms and ions are represented and what this means at the sub-microscopic level
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Atomau ac ïonau | Datblygu dealltwriaeth | 14–16 oed

Anogwch y dysgwyr i feddwl am sut mae atomau ac ionau’n cael eu cynrychioli a beth mae hyn yn ei olygu ar y lefel is-ficrosgopig
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Atoms and ions of copper | Johnstone’s triangle worksheets | 14–16 years

Use these worksheets to develop learners’ understanding of atoms and ions, including a demonstration of a metal displacement reaction
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Atomau ac ïonau copr | Taflenni gwaith triongl Johnstone | 14–16 oed

Defnyddiwch y taflenni gwaith hyn i ddatblygu dealltwriaeth y dysgwyr o atomau ac ïonau, gan gynnwys arddangosiad o adwaith dadleoli metel
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Atomic structure of lithium | Johnstone’s triangle worksheets | 14–16 years

Use these worksheets to develop learners’ understanding of atomic structure, using the example of lithium
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Adeiledd atomig | Datblygu dealltwriaeth | 14–16 oed

Anogwch y dysgwyr i feddwl am sut mae adeiledd atomig yn cael ei gynrychioli a beth mae hyn yn ei olygu ar y lefel is-ficrosgopig
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Atomic structure | Developing understanding | 14–16 years

Encourage learners to think about how the atomic structure is represented and what this means at the sub-microscopic level