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#### GCSE (9 - 1) Edexcel Maths Useful Formulae to Learn

Some useful GCSE Maths Formulae that I have had my year 11’s put onto flashcards and memorise.

#### GCSE(9- 1) Maths Percentages Full Lesson

A full lesson on percentages which covers:
Percentages of an Amount
Percentage increase & decrese (calculator and non-calculator method)
Using multipliers
VAT, deposits, interest
Percentage change (profit/loss)
Reverse percentages (finding the original)

#### Divisibility Rules

Colourful poster/revision resource

#### Compound Measures Formulae - GCSE (9-1) Maths

Formula Triangles for the following:
- Density
- Pressure
- Flow
- Average Speed

#### GCSE Maths (9-1)Angle Properties

Poster covering Angle Properties

#### GCSE Maths (9-1) - Trigonometry Poster/Revision Sheet for Non Right-Angled Triangles

Poster including:
how to label your triangle
sine rule
cosine rule
area of a triangle
(For non right-angled triangles)

#### GCSE Maths (9-1) Trigonometry (SOHCAHTOA, Sine Rule, Cosine Rule, Area of Triangles)

Created this to help my GCSE Maths students. Contains everything you need to understand trigonometry, from area of triangles, to sohcahtoa, cosine and sine rule. It contains worked examples of each queston too.

#### GCSE Maths (9-1) Percentages Revision

- Contains the formulae needed to answer questions involving percentages
- Each type of question has an example

#### GCSE Maths (9-1) Trigonometry - Right-Angled Triangles

Poster which covers Trigonometry for Right-Angled Triangles. Information includes;
Labelling your triangle
Area of a right-angled triangle
SohCahToa

#### Number Facts

Number Facts Poster which includes:
- Odd and Even Numbers
- Multiples
- Factors
- Square Numbers
- Reciprocals
- Prime Numbers
- Prime Factors

#### GCSE Maths (9-1) Direct and Inverse Proportion

PDF on proportion which includes:
direct proportion
inverse proportion
square and cubic proportionality
Worked exam questions

#### GCSE Maths (9-1) Histograms

A powerpoint presentation going through the steps to producing a histogram, with worked exam questions.

#### GCSE (9-1) Maths-Fractions - Full Lesson

A full lesson which covers:
Improper Fractions and Mixed Numbers
Reciprocals
Converting between Fractions, Decimals and Percentages
Ordering Fractions, Decimals and Percentages
Fractions of Amounts
Simplifying Fractions
Equivalent Fractions
Adding and Subtracting Fractions
Multiplying and Dividing Fractions

#### GCSE Maths (9-1)- Index Laws

Index Laws including:
Multiplying powers
Dividing Powers
Power raised by a Power
Zero Power
Negative Powers
Fractional Powers

#### GCSE Maths (9 - 1) Paper 2 Higher Pre-exam Worksheet

Pre-Paper 2 GCSE Maths (9 - 1) Worksheet & Solutions.

#### GCSE Maths (9 - 1) The Quadratic Formula

I have produced a lesson introducing the quadratic formula.
The lesson includes :
identifying a,b and c in a quadratic equation
Real-life applications
Using the quadratic equation (including a silver and gold exercise)
Extension exam-style question
Exit tickets to summarise a students’ basic understanding

#### GCSE Maths (9-1) Non-Calc Pre-exam Revision

I have produced a double-sided worksheet to give to my students during a breakfast session before their first GCSE Maths exam.
I have also uploaded solutions.

#### GCSE (9 - 1) Maths - Linear Inequalities

Full lesson which covers:
symbols
integer solutions
inequalities on a number line
solving linear inequalities
using set notation

#### GCSE Maths (9-1) Prime Factors, HCF, LCM

Full lesson powerpoint and pdf which includes:
Number Facts (Factors, Multiples, Prime Numbers)
Writing a number in prime factor form
Finding the HCF of two numbers
Finding the HCF of three numbers
Finding the LCM of two numbers
Finding the LCM of three numbers
Questions with full solutions and answers for the above
Worded Problem-Solving HCF/LCM Walkthrough & Questions
Using your casio calculator to produce prime factorisation of a number
Method used: Listing, circling common factors, venn diagrams
I have not included printable worksheets as all questions can be produced in exercise books, and some prime factor trees can be quite long!
If you would prefer to have worksheets anyway, please ask and I will be happy to post those also.

#### GCSE Maths (9-1) Similar-Shapes - Full Lesson PPT

A full powerpoint lesson on Similarity I created. It is differentiated and covers the following:
What is similarity?
Similarity in real-life
Finding the scale factor of enlargement
Similarity (Length, Area, Volume)
Nested Diagrams
Proving Similarity
Challenge Grade 9 Frustum Question
‘Objective’s met’ brainstorm
I have also included pdf worksheets of the exercises included in the powerpoint, so you can print the sheets for your students.