All articles by Helen Harden – Page 2

Resource

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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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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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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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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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

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Covalent bonding | Developing understanding | 14–16 years

Develop learners’ understanding of the size and shape of covalent structures by interpreting a range of diagrams and models

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Ionic bonding | Developing understanding | 14–16 years

Develop learners’ understanding of ionic lattices through comparing 2D and 3D representations

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Metallic bonding | Developing understanding | 14–16 years

Develop learners’ sub-microscopic understanding by interpreting a range of models used to represent metallic structure and metal ions

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Carbon allotropes | Developing understanding | 14–16 years

Encourage learners to think about how different structures of carbon are represented and what this means at the sub-microscopic level

Opinion

Learning about women chemists is an entitlement

2022-03-10T08:20:00Z

The contributions of women to chemistry should be written into the core chemistry curriculums, says Helen Harden

CPD article

How to teach chemical energetics

2020-08-03T10:02:00Z

Exothermic reactions go beyond simply combustion – use these tips to boost student understanding of energy transfer

Ideas

Avoid the pitfalls of language (again)

2019-09-04T10:05:00Z

Defining scientific words and the hazards involved

Ideas

Avoid the pitfalls of language

2019-06-25T10:03:00Z

Help students learn the difference between everyday and chemistry vocabulary

Feature

A question of substances

2018-12-18T12:33:00Z

How science education research has inspired the BEST resources