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# Trigonometry

Created on 01 May 2015 by ncetm_administrator
Updated on 11 May 2015 by ncetm_administrator

# Trigonometry

A selection of resources.

Click on the title of the resource to expand the section for a description. Clicking on the green button within the description will take you to the resource. A summary of the topics covered is included in the blue box within the description.

## Departmental Workshops - Shape and Space (NCETM)

This is a link to a set of departmental workshops from NCETM on shape and space (geometry). The full range of workshops can be viewed by clicking on departmental workshops in the list on the right of the screen.

Topics: 2D shapes, angle properties, circle theorems, congruence and similiarity, constructions, dimensions, enlargement, loci, trigonometry

## Sine, Cosine and Tangent in Four Quadrants (Math is Fun)

This webpage looks at sine, cosine and tangent in four quadrants leading to the graphs of each of the functions. There is a link at the bottom of the page to an interactive unit circle tool which can be used to demonstrate the ideas addressed in the webpage. There are also questions to try.

Topics: Trigonometric functions

## Introduction to Trigonometry (Teaching Channel)

A short clip from an American classroom showing one approach to introducing the naming of the sides in relation to an angle.

Topics: Trigonometry

## Trigonometry (National STEM Centre)

This guide from mathcentre covers a range of topics including; trigonometric ratios, Pythagoras, the sine and cosine rule and even trigonometric identities which is beyond GCSE.

Topics: Trigonometry including , values of sin,cos,tan 30,60,45, 90

## Further Trigonometry (BBC Bitesize)

This section from BBC Bitesize includes pages on sine and cosine rule, plus 3d trigonometry. There are interactive questions spaced periodically throughout the explanations to help you check your understanding. A short video clip is also available via the tab at the top of the page.

Topics: Trigonometry, further trigononmetry including sine and cosine rule plus: Area= ½ absinC