# Year 9 Term 4

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# Year 9 Term 4

##### Number
Interactive Lessons

## Addition and Subtraction with Fractions and Mixed Numbers

Students learn how to perform addition and subtraction with fractions and mixed numbers.  As learning progresses...
##### Handling Data
Interactive Lessons

## Frequency Trees

Students learn how to create frequency trees from two-way tables and written descriptions.  As learning progress...
##### Shape
Interactive Lessons

## Area of Parallelograms and Trapezia

Students learn how to calculate the area of parallelograms and trapeziums by considering how a parallelogram can...
##### Shape
Interactive Lessons

## Investigating Perimeters and Areas with Polyominoes

This lesson provides an opportunity for students to investigate the relationship between perimeter and area.   S...
##### Shape
Interactive Lessons

## Perimeter of Shapes

Students learn how to measure the perimeter of 2D shapes. by counting and later by creating and using a formula....
##### Shape
Interactive Lessons

## Area of Irregular Shapes

Students learn how to find the area of irregular shapes by grouping.  As learning progresses they are challenged...
##### Shape
Interactive Lessons

## Area of Compound Shapes

Students learn how to calculate the area of compound rectilinear shapes by splitting the shapes up into two or m...
##### Shape
Interactive Lessons

## Area of Triangles

By considering a right angled triangle as half a rectangle the students are guided through deriving the formula ...
##### Shape
Interactive Lessons

## Area of Rectangles

Students learn how to find the area of a rectangle first by counting, then repeated addition, basic multiplicati...
##### Shape
Interactive Lessons

Students extend their understanding of angles in a triangles to calculate missing angles in a quadrilateral.  As...
##### Shape
Interactive Lessons

## Angles in Parallel Lines

This lesson is intended to guide the class through discovering alternate, corresponding and interior angles in p...
##### Shape
Interactive Lessons

## Problems with Angles in Parallel Lines

Students learn how to apply the interior, alternate and corresponding angle properties in parallel lines.  As th...
##### Shape
Interactive Lessons

## Angles in a Triangle

Students begin by investigating the sum of the angles in different types of triangles.  As learning progresses t...
##### Shape
Interactive Lessons

## Bearings and Scale Drawings

Students learn how to draw and measure bearings and how to use the angle properties of parallel lines to calcula...
##### Shape
Interactive Lessons

## Constructing Regular Polygons

Students learn how to construct regular polygons to investigate the relationship between interior and exterior a...
##### Shape
Interactive Lessons

## Interior and Exterior Angles

Students use the properties of regular polygons to calculate interior and exterior angles. As learning progresse...

### 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 […]