# Key Stage 3

Showing 49–64 of 150 results

# Key Stage 3

##### Number
Interactive Lessons

## Factor Pairs of Numbers and Terms

Students learn how to find all the factor pairs of numbers and terms.  More able are taught to find the factors ...
##### Algebra
Interactive Lessons

## Factorising Expressions into a Pair of Brackets

Students learn how to factorise an algebraic expression into a pair of brackets using the highest common factor....
##### Shape
Interactive Lessons

## Finding any length of a Right-Angled Triangle

Key stage 3 mathematics for using Pythagoras' Theorem to calculate any length of a right-angled triangle.   Lea...
##### Number
Interactive Lessons

## Finding Percentages without a Calculator

Students learn how to calculate a percentage of an amount  using either 10% or working with equivalent fractions...
##### Number
Interactive Lessons

## Finding Prime Factors

Finding Prime Factors Students learn about finding prime factors of a number.  This lesson builds on understand...
##### Number
Interactive Lessons

## Finding Prime Numbers

Students learn about finding prime numbers using factor pairs and the Sieve of Eratosthenes.  Throughout the les...
##### Shape
Interactive Lessons

## Finding the Area of a Circle

Students learn how a circle can be formed into a parallelogram and rectangle so the area is derived as A =πr2.  ...
##### Shape
Interactive Lessons

## Finding the Area of a Rectangle

Students learn about finding the area of a rectangle.  They progress from counting the squares inside and multip...
##### Shape
Interactive Lessons

## Finding the Area of a Triangle

Students practice finding the area of a triangle.  As the lesson progresses students learn how to use the formul...
##### Shape
Interactive Lessons

## Finding the Circumference of a Circle

Students learn about finding the circumference of a circle as a multiple of π and as a decimal correct to 3 sign...
##### Number
Interactive Lessons

## Finding the Highest Common Factor

Students learn about finding the highest common factor of numbers and terms.  More able student learn how to fin...
##### Algebra
Interactive Lessons

## Finding the nth Term of a Sequence

Students learn about finding the nth term of a sequence.  During the lesson they are taught how to break a seque...
##### Shape
Interactive Lessons

## Finding the Original Amount - Percentage Changes

Students learn how to calculate the original amount after a simple percentage change.  Learning progresses from ...
##### Number
Interactive Lessons

## Fractions and Decimal Numbers

Students learn how to convert between fractions and decimal numbers using place value and equivalent fractions. ...
##### Algebra
Interactive Lessons

## Horizontal and Vertical Straight Line Graphs

Students learn how to plot and find the equation of horizontal and vertical straight line graphs.  As learning p...
##### Handling Data
Interactive Lessons

## How to Calculate the Mean Average

Students learn how to calculate the mean average from data in a list.  Later in the lesson they compare data set...

### Mr Mathematics Blog

#### Surface Area of Cylinders

When I teach how to find the surface area of cylinders I like to add a constant level of challenge and enjoyment to the lesson.  Rather than repetitively calculating the surface area of a cylinder I introduce more complex cylindrical shapes. How to find the Surface Area of Cylinders To find the surface area of […]

#### Teaching Mathematics for a Growth Mindset

Inspiring students to enjoy maths and feel the success that comes with attempting a difficult challenge is why I teach.  The feeling of success is addictive.  The more students experience it the more they want it and the further out of their comfort zone they are willing to go to get more of it.  Teaching […]

#### Equation of Straight Line Graphs

To find the equation of straight line graphs students need to calculate the gradient using two pairs of coordinates and the intercept which is the y value of where it crosses the vertical axis.  Examiner’s reports of past exam questions show students are more able to find the intercept of a straight line than they […]