This is the first lesson of a much larger bundle. This lesson is about building an understanding of what trig is by doing various rich tasks and activities and starting to use soh cah toa. 20 slides + resources.
The lesson comes with:
+ a Starter
+ Learning Objectives
+ key words
+ superb teaching slides (offering a very detailed explanation)
+ lots of examples
+ Questions (with answers)
+ Plenary.
NOTE: Feel free to browse my shop for more excellent free and premium resources. As always please rate and feedback on any purchases or downloads. Thank you for your support.

This is a set of 4 mastery worksheets on trigonometry involving the Sine rule, Cosine rule, area of triangles using trigonometry and exact trig values.
Each worksheet is split into 3 sections, fluency, reasoning and problem solving so students can master the topic.
All answers are included for the questions.

A complete lesson on using sin, cos and tan to find an unknown side of a right-angled triangle. Designed to come after pupils have been introduced to the trig ratios, and used them to find angles in right-angled triangles. Please see my other resources for complete lessons on these topics.
Activities included:
Starter:
A quick reminder and some questions about using formulae triangles (e.g. the speed, distance, time triangle). This is to help pupils to transfer the same idea to the SOHCAHTOA formulae triangles.
Main:
A few examples and questions for pupils to try, on finding a side given one side and an angle. Initially, this is done without reference to SOHCAHTOA or formulae triangles, so that pupils need to think about whether to multiply or divide.
More examples, but this time using formulae triangles.
A worksheet with a progression in difficulty, building up to some challenging questions on finding perimeters of right-angled triangles, given one side and an angle.
A tough extension, where pupils try to find lengths for the sides of a triangle with a given angle, so that it is has a perimeter of 20cm.
Plenary:
A prompt to get pupils thinking about how they are going to remember the rules and methods for this topic.
Printable worksheets and answers included.
Please review if you buy as any feedback is appreciated!

A complete lesson on bearings problems with an element of trigonometry or Pythagoras’ theorem.
Activities included:
Starter:
Two sets of questions, one to remind pupils of basic bearings, the other a matching activity to remind pupils of basic trigonometry and Pythagoras’ thoerem.
Main:
Three worked examples to show the kind of things required.
A set of eight problems for pupils to work through.
Plenary:
A prompt for pupils to reflect on the skills used during the lesson.
Printable worksheets and answers included.
Please review if you buy as any feedback is appreciated!

The RAG sheets are designed to be marked by students as red, amber or green.
The worksheets in the ‘RAG Sheets’ series generally contain 10 questions, with animated answers for amber and green.
The aim is to encourage students to show workings, and to stop the annoying trait of students marking answers as completely incorrect, where most of the question has been answered correctly.
The sheets have been designed to look as close to examination questions as possible.
The have also generally been designed to start with the easiest questions and get gradually harder.
They are a new design I am trying out and sheets will be added to as I make them throughout the year.
Bundles will follow once I have built up enough sheets.
Enjoy!

A set of matching activities to help students practise finding the missing sides and angles in triangles using SOH CAH TOA.
This pack includes four activities:
1. Label the Sides Worksheet
A quick activity for students to label the sides as opposite, adjacent or hypotenuse to get them ready for using SOH CAH TOA.
2. Matching Activity 1 (Sin & Cos)
Students must use the sine and cosine ratios to find the missing sides in a set of triangles.
3. Matching Activity 2 (Sin, Cos & Tan)
Students must use sine, cosine and tangent ratios to find the missing sides.
4. Matching Activity 3 (Angles)
Students must calculate the missing angles in a set of triangles and match them to their answers.
All activities include answers and are easy to check as students can record their answers in a table, meaning you can quickly assess if they are on the right track.

A complete lesson on finding an angle in a right-angled triangle using trig ratios. Designed to come after pupils have been introduced to the ratios sin, cos and tan, and have investigated how the ratios vary. Please see my other resources for complete lessons on these topics.
Activities included:
Starter:
Provided with the graph of y=sinx, pupils estimate sinx for different values of x and vice-versa.
Main:
Slides to introduce use of scientific calculators to find accurate values for angles or ratios.
Examples of the basic method of finding an angle given two sides. Includes graphs to reinforce what is happening.
Quick questions for pupils to try and provided feedback.
A worksheet of questions with a progression in difficulty. Starts with standard questions, then moves on to more challenging ones (eg finding the smallest angle in a non-right-angled, isosceles triangle).
Plenary:
A final question to check pupils’ understanding, but also with a combinations/logic element.
Printable worksheets and answers included.
Please review if you buy as any feedback is appreciated!

Trigonometry Revision SINE COSINE and TANGENT Ratio Right Angle Triangle Revision. In detail step by step answers. Very Visual and engaging.
Great for whole lesson or quick fire revision.
Working out missing length / side/ angle for a right angle triangle.
Excellent Demonstration Videos', there is one for 3D Trigonometry as well.
Comprehensive explanations on SIN / COS/ TAN Ratios being used for side / length and Angle.
Comes with solutions / answers.
Has 'spot the wrong answer' questions to draw out deeper understanding.
Trigonometry SOH CAH TOA.

Two trigonometry codebreakers that both involve a terrible joke. The first one is with right-angled triangles, the second requires the sine rule, cosine rule and area of a triangle using trigonometry.

I created this GCSE Trigonometry Revision sheet for my Y11 students. I printed the pdf document on A3 paper and got students to complete the questions on the sheet, adding in their own notes/mnemonics to help them remember when to use each rule/formula. The students really enjoyed doing this activity in class as part of their revision for their examinations and then took their A3 sheets home to use as part of their ongoing revision.
Once the sheet was filled in, and checked/marked we used them to answer questions from text books/past exam papers.
One of my students' completed sheets is attached too.

Here is a trigonometry summary wich includes the tangent ratio, the cosine ratio and the sine ratio. It will help your KS3 Maths students to learn and understand the basic trigonometry formulas.
Hope you find it useful!

Colourful differentiated ONESIE worksheet. Allowing students to show progression. Suitable for cover lessons - easy and cost effective to photocopy.
**Supplied with answers.**

Series of Lessons (2-3) on using and applying trigonometry with bearings, angles of elevation and angles of depression. This lesson has a recap of using and applying basic trigonometry in 2D using SOHCAHTOA.
All tasks include reasoning, problem solving aswell as mastering the fluency of the topic. All tasks include full solutions and worked examples so that pupils can self and peer mark. All tasks are fully differentiated to either 2/3/4 levels.

A complete lesson on using and applying Trigonometry to right angled triangles which is suitable for the new curriculum.
Pupils are given the chance to master the fluency of this topic aswell as work on reasoning and problem solving tasks.
All tasks are differentiated to 3 levels all with solutions and offer lots of consolidation as well as alot of challenge. Can be used with KS3/KS4.

A set of questions in real-life scenarios, where pupils use SOHCAHTOA to find angles an distances.
Activities included:
Starter:
Some basic SOHCAHTOA questions to test whether pupils can use the rules.
Main:
A set of eight questions in context. Includes a mix of angle of elevation and angle of depression questions, in a range of contexts.
Printable worksheets and answers included.
Please review if you buy as any feedback is appreciated!

PowerPoint lessons for the following topic
Introduction
Solving basic equations
Sine and cosine rules
Identities
Graphs with radians
Solving equations with radians
They include:
Questions and answers
Animated parts of the answer for Q&A and demonstrations
Colours to support explanations.
For your use:
You can duplicate slides any type in new questions
To support your teaching and save time planning
As a basis for your observations lessons
To share with students to help them work outside the classroom
I hope this benefits you as it has done for me.
Kind regards.