The following collection of resources have been assembled by the TES Maths Panel. They can be downloaded for free by registering on the TES website.

Maths Deputy Curriculum Leader Will Emeny picks his top 10 Pythagoras and Trigonometry resources available on TES.

Both topics of Pythagoras’ Theorem and Trigonometry lend themselves to an enquiry-based approach. Whether discovering Pythagoras’ Theorem by looking at the squares of side lengths, or working from the ideas of enlargement and similarity to introduce trigonometrical ratios, these topics provide many opportunities for exciting discoveries by students.

### 1. GCSE introducing Pythagoras’ Theorem lesson

An excellent PowerPoint introducing the theorem through an investigative approach followed by worked examples and worksheets that include questions in real life contexts.

### 2. Pythagoras’ Theorem

A stunning spreadsheet showing both algebraic and geometric proofs of the theorem. Includes all types of questions including Pythagoras in 3D. A brilliant teaching resource.

### 3. Enlargement to Trigonometry – lesson plans and activities

A simply stunning complete unit of work to take pupils from the concept of enlargement through similarity and ending up introducing trigonometry.

### 4. Which Trig formula to use treasure hunt

A fun starter/plenary activity to recap identifying which trig formula to use

### 5. Trigonometry loop cards activity

A wonderful set of loop cards based on missing side lengths and angles in right angled triangles. A nice alternative to worksheet questions!

### 6. KS4 Maths Pythagoras in 3D treasure hunt

A brilliant differentiated treasure hunt activity on using 3D Pythagoras. Engaging and fun. Popular with students.

### 7. A-level Maths C2: Sine and Cosine rules worksheet

A brilliant set of student-friendly notes, worked examples and questions on the Sine and Cosine rules

### 8. Trigonometry pile-up puzzle

A challenging puzzle requiring pupils to master right-angled triangle trigonometry questions to solve.

### 9. Revision booklet – Pythagoras and Trigonometry

A comprehensive revision booklet on the topic featuring exam-style questions.

### 10. Pirate Trigonometry

An engaging and challenging revision activity on both Pythagoras and trigonometry in the form of a pirate treasure hunt! Solutions included.