Trigonometry Lesson Starters and Online Activities

There are 366 different Starters of The Day, many to choose from. You will find in the left column below some starters on the topic of Trigonometry. In the right column below are links to related online activities, videos and teacher resources. A lesson starter does not have to be on the same topic as the main part of the lesson or the topic of the previous lesson. It is often very useful to revise or explore other concepts by using a starter based on a totally different area of Mathematics. Main Page
Trigonometry Starters: Refreshing Revision: It is called Refreshing Revision because every time you refresh the page you get different revision questions. Small images of these Starters :: Index of Starters Trigonometry Advanced Starters: Angle Thinking: Find the range of possible angles, x, for which tan x > cos x > sin x Cos 10 Equals p: Find the trigonometric values in terms of the given value, p. Exponential Trigonometry: Find, in degrees, all eight of the solutions to the given exponential, trigonometric equation Find The Radius: Find the radius of the circle from the small amount of information provided. Tan 22.5: Find an exact value for tan 22.5° without using a calculator. Tansum: Find the sum of the tangents of angles on a straight line. Trig Blot: Find all the measurements of the given triangle. Index of Advanced Starters Suggested Which Side? Arrange the diagrams in groups depending on whether the arrow is pointing to the opposite, adjacent or hypotenuse. The short web address is: Transum.org/go/?to=whichside Curriculum for Trigonometry: Years 7 to 9 Pupils should be taught to use Pythagoras’ Theorem and trigonometric ratios in similar triangles to solve problems involving right-angled triangles more... Years 10 and 11 Pupils should be taught to compare lengths, areas and volumes using ratio notation and/or scale factors; make links to similarity (including trigonometric ratios) more... Pupils should be taught to recognise, sketch and interpret graphs of linear functions, quadratic functions, simple cubic functions, the reciprocal function y = with x not equal to 0, {the exponential function y = k^x for positive values of k, and the trigonometric functions (with arguments in degrees) y = sin x, y = cos x and y = tan x for angles of any size} more... Pupils should be taught to know the exact values of the sine and cosine of 30, 45, 60 and 90 degrees; know the exact value of the tangent of 30, 45, and 60 degrees more... Pupils should be taught to {know and apply the sine and cosine rules to find unknown lengths and angles} more... Pupils should be taught to {know and apply Area = ½ ab sin C to calculate the area, sides or angles of any triangle} more... Years 12 and 13 Pupils should be taught to understand and use the definitions of sine, cosine and tangent for all arguments; the sine and cosine rules; the area of a triangle in the form ½absin(C); Work with radian measure, including use for arc length and area of sector more... Pupils should be taught to understand and use the standard small angle approximations of sine, cosine and tangent sinθ ≈ θ, cosθ ≈ 1 - ½θ² tanθ ≈ θ, Where θ is in radians more... Pupils should be taught to understand and use the sine, cosine and tangent functions; their graphs, symmetries and periodicity. Know and use exact values of sin, cos and tan for the following angles (in degrees and radians) 0°, 30°, 45°, 60°, 90°, 180° and multiples thereof more... Pupils should be taught to understand and use the definitions of secant, cosecant and cotangent and of arcsin, arccos and arctan; their relationships to sine, cosine and tangent; understanding of their graphs; their ranges and domains more... Pupils should be taught to understand and use tanθ = sinθ ÷ cosθ sin²θ + cos²θ = 1 sec²θ = 1 + tan²θ and cosec²θ = 1 + cot²θ more... Pupils should be taught to understand and use double angle formulae; use of formulae for sin (A ± B), cos (A ± B), and tan (A ± B); understand geometrical proofs of these formulae; understand and use expressions for a cosθ + b sinθ in the equivalent forms of r cos (θ ± α) or r sin (θ ± α) more... Pupils should be taught to solve simple trigonometric equations in a given interval, including quadratic equations in sin, cos and tan and equations involving multiples of the unknown angle more... Pupils should be taught to construct proofs involving trigonometric functions and identities more... Pupils should be taught to use trigonometric functions to solve problems in context, including problems involving vectors, kinematics and forces more... International Baccalaureate See the Geometry and Trigonometry sub-topics, syllabus statements, exam-style questions and learning resources for the IB AA course here. Exam-Style Questions: There are almost a thousand exam-style questions unique to the Transum website. Feedback: Comment recorded on the 17 June 'Starter of the Day' page by Mr Hall, Light Hall School, Solihull: "Dear Transum, I love you website I use it every maths lesson I have with every year group! I don't know were I would turn to with out you!" Comment recorded on the 28 May 'Starter of the Day' page by L Smith, Colwyn Bay: "An absolutely brilliant resource. Only recently been discovered but is used daily with all my classes. It is particularly useful when things can be saved for further use. Thank you!" Comment recorded on the 2 April 'Starter of the Day' page by Mrs Wilshaw, Dunsten Collage,Essex: "This website was brilliant. My class and I really enjoy doing the activites." Comment recorded on the s /Indice 'Starter of the Day' page by Busolla, Australia: "Thank you very much for providing these resources for free for teachers and students. It has been engaging for the students - all trying to reach their highest level and competing with their peers while also learning. Thank you very much!" Comment recorded on the 14 October 'Starter of the Day' page by Inger Kisby, Herts and Essex High School: "Just a quick note to say that we use a lot of your starters. It is lovely to have so many different ideas to start a lesson with. Thank you very much and keep up the good work." Comment recorded on the s /Coordinate 'Starter of the Day' page by Greg, Wales: "Excellent resource, I use it all of the time! The only problem is that there is too much good stuff here!!" Comment recorded on the 10 April 'Starter of the Day' page by Mike Sendrove, Salt Grammar School, UK.: "A really useful set of resources - thanks. Is the collection available on CD? Are solutions available?" Comment recorded on the 9 April 'Starter of the Day' page by Jan, South Canterbury: "Thank you for sharing such a great resource. I was about to try and get together a bank of starters but time is always required elsewhere, so thank you." Comment recorded on the 14 September 'Starter of the Day' page by Trish Bailey, Kingstone School: "This is a great memory aid which could be used for formulae or key facts etc - in any subject area. The PICTURE is such an aid to remembering where each number or group of numbers is - my pupils love it! Thanks" Comment recorded on the 26 March 'Starter of the Day' page by Julie Reakes, The English College, Dubai: "It's great to have a starter that's timed and focuses the attention of everyone fully. I told them in advance I would do 10 then record their percentages." Comment recorded on the 3 October 'Starter of the Day' page by Mrs Johnstone, 7Je: "I think this is a brilliant website as all the students enjoy doing the puzzles and it is a brilliant way to start a lesson." Comment recorded on the 2 May 'Starter of the Day' page by Angela Lowry, : "I think these are great! So useful and handy, the children love them. Could we have some on angles too please?" Comment recorded on the 7 December 'Starter of the Day' page by Cathryn Aldridge, Pells Primary: "I use Starter of the Day as a registration and warm-up activity for my Year 6 class. The range of questioning provided is excellent as are some of the images. I rate this site as a 5!" Comment recorded on the 8 May 'Starter of the Day' page by Mr Smith, West Sussex, UK: "I am an NQT and have only just discovered this website. I nearly wet my pants with joy. To the creator of this website and all of those teachers who have contributed to it, I would like to say a big THANK YOU!!! :)." Comment recorded on the 3 October 'Starter of the Day' page by S Mirza, Park High School, Colne: "Very good starters, help pupils settle very well in maths classroom." Comment recorded on the 23 September 'Starter of the Day' page by Judy, Chatsmore CHS: "This triangle starter is excellent. I have used it with all of my ks3 and ks4 classes and they are all totally focused when counting the triangles." Comment recorded on the 1 February 'Starter of the Day' page by M Chant, Chase Lane School Harwich: "My year five children look forward to their daily challenge and enjoy the problems as much as I do. A great resource - thanks a million." Comment recorded on the 18 September 'Starter of the Day' page by Mrs. Peacock, Downe House School and Kennet School: "My year 8's absolutely loved the "Separated Twins" starter. I set it as an optional piece of work for my year 11's over a weekend and one girl came up with 3 independant solutions." Comment recorded on the 11 January 'Starter of the Day' page by S Johnson, The King John School: "We recently had an afternoon on accelerated learning.This linked really well and prompted a discussion about learning styles and short term memory." Comment recorded on the 28 September 'Starter of the Day' page by Malcolm P, Dorset: "A set of real life savers!! Keep it up and thank you!" Comment recorded on the 17 November 'Starter of the Day' page by Amy Thay, Coventry: "Thank you so much for your wonderful site. I have so much material to use in class and inspire me to try something a little different more often. I am going to show my maths department your website and encourage them to use it too. How lovely that you have compiled such a great resource to help teachers and pupils. Thanks again" Comment recorded on the 9 October 'Starter of the Day' page by Mr Jones, Wales: "I think that having a starter of the day helps improve maths in general. My pupils say they love them!!!" Comment recorded on the 3 October 'Starter of the Day' page by Fiona Bray, Cams Hill School: "This is an excellent website. We all often use the starters as the pupils come in the door and get settled as we take the register." Comment recorded on the 12 July 'Starter of the Day' page by Miss J Key, Farlingaye High School, Suffolk: "Thanks very much for this one. We developed it into a whole lesson and I borrowed some hats from the drama department to add to the fun!" Comment recorded on the 1 August 'Starter of the Day' page by Peter Wright, St Joseph's College: "Love using the Starter of the Day activities to get the students into Maths mode at the beginning of a lesson. Lots of interesting discussions and questions have arisen out of the activities. Thanks for such a great resource!" Comment recorded on the 25 June 'Starter of the Day' page by Inger.kisby@herts and essex.herts.sch.uk, : "We all love your starters. It is so good to have such a collection. We use them for all age groups and abilities. Have particularly enjoyed KIM's game, as we have not used that for Mathematics before. Keep up the good work and thank you very much Best wishes from Inger Kisby" Comment recorded on the 1 February 'Starter of the Day' page by Terry Shaw, Beaulieu Convent School: "Really good site. Lots of good ideas for starters. Use it most of the time in KS3." Comment recorded on the 16 March 'Starter of the Day' page by Mrs A Milton, Ysgol Ardudwy: "I have used your starters for 3 years now and would not have a lesson without one! Fantastic way to engage the pupils at the start of a lesson." Comment recorded on the 24 May 'Starter of the Day' page by Ruth Seward, Hagley Park Sports College: "Find the starters wonderful; students enjoy them and often want to use the idea generated by the starter in other parts of the lesson. Keep up the good work" Comment recorded on the i asp?ID_Top 'Starter of the Day' page by Ros, Belize: "A really awesome website! Teachers and students are learning in such a fun way! Keep it up..."	Notes: Trigonometry is a branch of mathematics that studies triangles and the relationships between their sides and the angles between these sides. Pupils begin by learning the names on the sides of a right-angled triangle relative to the angles. They then learn the ratios of the lengths of these sides and the connection these ratios have with the size of the angles. Having mastered right-angled triangle trigonometry pupils then progress to more advanced uses including the sine rule and cosine rules. The use of a scientific or graphing calculator is essential for this topic and correct, efficient use of the calculator is an important skill to develop. Here's a Trigonometry Wordsearch just for fun. Trigonometry Teacher Resources: 3D Trigonometry Presentation: A slide presentation (a poem) introducing using trigonometry (including Pythagoras' Theorem) to find lengths and angles on three dimensional shapes. Inverse Trig Calculator: This calculator is designed to find all of the angles for a given trigonometric ratio and show them on a graph. Triangle Solver: Provide and three measurements for a triangle and this application will work out the remaining sides, angles and area. Trig Tour: See angles, in either degrees or radians, on the unit circle and the graph of the trigonometric function. Trigonometry Activities: Which Side?: Arrange the diagrams in groups depending on whether the arrow is pointing to the opposite, adjacent or hypotenuse. Trigonometry: Sine, cosine and tangent ratios are used to find sides and angles in right-angled triangles. Formulae to Remember: The traditional pairs or pelmanism game adapted to test recognition for formulae required to be memorised for GCSE exams. Trig-Pythag Fusion: Problems requiring multi-step solutions using both Trigonometry and Pythagoras' Theorem Trigonometry in 3D: Calculate the lengths of sides and the size of angles in three dimensional shapes. If Then Trigonometry: Finding the exact values of sine, cosine and tangent of angles if given a different trig ratio. Common Trig Ratios Degrees: A self-marking exercise on finding the exact values of sine, cosine and tangent of special angles. Trigonometry Advanced: A self-marking exercise on the sine rule, cosine rule and the sine formula for finding the area of a triangle. Common Trig Ratios Radians: A self-marking exercise on finding the exact values of sine, cosine and tangent of special angles given in radians. Alternatively, for the more advanced student, there is an ever-growing collection of Exam-Style Questions with worked solutions on the topic of Trigonometry. Trigonometry Investigations: Search for Infinity: Manipulate the Lissajou curve to produce a perfectly symmetrical (vertically and horizontally) infinity symbol. Trigonometry Videos: Transum's Trigonometry Video Trigonometry Video: The basic trigonometric ratios are sine, cosine and tangent and are used to find the lengths of sides and the size of angles in right-angled triangles. Trigonometry and Pythagoras: A trigonometry and Pythagoras theorem revision song Common Trig Ratios Video: You may not realise that it is possible to find sin60° or tan45° without a calculator. This video is to help you do the online, self-marking exercise. Three Dimensional Trigonometry Video: When you have mastered trigonometry in two dimensions it is time to practise solving three-dimensional problems. Formulae for GCSE: These are the formulae candidates need to know for the GCSE(9-1) Maths exams. Trigonometry External Links: Links to other websites containing resources for Trigonometry are provided for those logged into 'Transum Mathematics'. Subscribing also opens up the opportunity for you to add your own links to this panel. You can sign up using one of the buttons below: Search The activity you are looking for may have been classified in a different way from the way you were expecting. You can search the whole of Transum Maths by using the box below. Other Is there anything you would have a regular use for that we don't feature here? Please let us know. Suggested Common Trig Ratios Radians A self-marking exercise on finding the exact values of sine, cosine and tangent of special angles given in radians. The short web address is: Transum.org/go/?to=commontrigratiosradians
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Comments Have today's Starter of the Day as your default homepage. Copy the URL below then select Tools > Internet Options (Internet Explorer) then paste the URL into the homepage field. Set as your homepage (if you are using Internet Explorer) John Rodger, Thursday, November 17, 2022 "Hi, I have looked for something that specifically looks at angles of elevation and depression. Unable to find these as a separate of questions. Do you have a specific of questions relating to this? Many thanks. [Transum: Thanks for your comment John. You can find exam-style questions on the Angles of Elevation and Depression page.]" Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for those learning Mathematics anywhere in the world. Click here to enter your comments.