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Sine Rule, Cosine Rule and Area of a Triangle: Interactive Resources

When technology is used effectively the results are phenomenal. This selection of top-quality resources allows you to demonstrate key concepts in a visual, interactive manner, and students to hypothesise and investigate

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GeoGebra keyboard_arrow_up

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I am constantly blown away by all the things you can do on GeoGebra. Hopefully the following applets – all of which run without the need to download any software – will help enhance the teaching and learning of this topic

Further Trigonometry Visual Proof Demonstrations
Sine Rule Proof
Sine Rule – The Ambiguous Case
Sine Rule find a side Practise
Sine Rule find an angle Practise
Cosine Rule find a side Practise
Cosine Rule find an angle Practise
Area of a Triangle Practise
Arc Length, Area of Sector and Triangle

Wolfram Alpha Widgets keyboard_arrow_up

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Wolfram Alpha is simply the best computational knowledge engine on the planet. I have built a series of Wolfram Alpha widgets which can be used to check answers, make up questions, or investigate topics further.

Desmos Classroom Activities keyboard_arrow_up

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I have adored using the free Desmos Graphing Calculator in my lessons for a few years now, but have only recently discovered the power of Desmos Classroom Activities, which allow students to investigate, and you to monitor, record and facilitate collaboration and discussion.

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