A comprehensive introduction to sine and cosine rules, including a flow chart overview showing how to select the correct trigonometrical method for finding missing sides and angles in triangles. The webpage includes worked examples and an online exercise.21/08/2015
Class sorting - sine and cosine rules
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A set of cards which can be used in a variety of ways, for example as 'entrance cards' in which students must find all of the missing sides and angles. You will need to register for a TES account to access this resource, this is free of charge. 21/08/2015
Connect 4 sine and cosine rules
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The classic 'Connect 4' game in which students must solve problems involving the sine and cosine rules. You will need to register for a TES account to access this resource, this is free of charge. 21/08/2015
Diagnostic Questions - sine and cosine rules 1
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AQA have teamed up with Craig Barton's Diagnostic Questions website to share free diagnostic questions assessment for our new 2017 GCSE Maths specification.25/07/2017
Diagnostic Questions - sine and cosine rules 2
AQA have teamed up with Craig Barton's Diagnostic Questions website to share free diagnostic questions assessment for our new 2017 GCSE Maths specification.25/07/2017
Diagnostic Questions - sine and cosine rules 3
AQA have teamed up with Craig Barton's Diagnostic Questions website to share free diagnostic questions assessment for our new 2017 GCSE Maths specification.25/07/2017
Maths is Fun - the Sine Rule
This introduction to the sine rule includes an overview of the 'ambiguous case'. There are also ten online multiple choice questions assessing student understanding of this topic.21/08/2015
NRICH: Cosine Rule
A demanding activity in which students must prove a stated result using the cosine rule.21/08/2015
Proving the sine and cosine rules
1
Students cut out the parts of the proof from the given worksheet and place them in the correct order to prove why the sine and cosine rules work. Students are challenged to produce a similar staged proof for the result ½absinC. You will need to register for a TES account to access this resource, this is free of charge. 21/08/2015
Teaching resources - see below
99+
Downloadable resource in format.
29/08/2014
Teachit Maths - Desktop Revision - Trigonometry
A revision resource for working with right angled triangles and using the sine and cosine rules and finding the area of a triangle using ½absinC.21/08/2015
Teachit Maths - Finding lengths using sine
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A matching activity - students must match each triangle with the cards showing the correct calculation and the correct answer. All of the calculations involve the use of the sine ratio.02/09/2015
Teachit Maths - Matching sin and cos
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A matching activity in which students pair up triangles with sine and cosine ratios.02/09/2015
Teachit maths - When do we need ½absinC?
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A matching activity which consolidates which method is required to find the area of a range of different types of triangle.21/08/2015