# Year 9 Term 1

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# Year 9 Term 1

##### 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

## 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

## Circumference of Circles Problems

This lesson consolidates calculating the circumference of a circle and the perimeter of circular shapes.  Studen...
##### Shape
Interactive Lessons

## Circumference of Circles

Students are taken through the process of discovering the relationship between the radius, diameter and circumfe...
##### 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 Circles Problems

The lesson is intended to consolidate applying the area of circle formula to solve complex problems.  To extend ...
##### Shape
Interactive Lessons

## Area of Circles

Students are guided though the derivation of the Area of a Circle formula by approximating a circle from its sec...
##### Handling Data
Interactive Lessons

## Plotting Time Series

To plot a time series at GCSE students are taught to choose suitable axes from the data available and recognise ...
##### Handling Data
Interactive Lessons

## Drawing Pie Charts

To plot pie charts at GCSE students are taught to calculate a fraction of the circle using the frequency and sam...
##### Handling Data
Interactive Lessons

## Drawing Pictograms

To plot and interpret pictograms at GCSE students are taught to identify and recognise the value of a key.  As l...
##### Handling Data
Interactive Lessons

## Interpreting Pie Charts

To interpret pie charts at GCSE students are taught to use equivalent ratios by identifying a common frequency a...
##### Handling Data
Interactive Lessons

## Frequency Diagrams and Polygons

To plot frequency polygons at GCSE students learn how to choose suitable axes depending on the categorical data ...
##### Handling Data
Interactive Lessons

## Cumulative Frequency Graphs

To plot cumulative frequency graphs students are taught to find the cumulative frequency from grouped data table...
##### Handling Data
Interactive Lessons

## Drawing Bar Charts

To plot bar charts at GCSE students learn how to choose suitable axes depending on the categorical data and freq...
##### Number
Interactive Lessons

## Addition and Subtraction with Integers

Students learn how to add and subtract with integers using the column method.  By using the place value table st...
##### Number
Interactive Lessons

## Using Calculator Efficiently

The start of the lesson reviews basic calculator operation using the order of operations and place value to calc...

### Mr Mathematics Blog

#### Rounding to a significant figure

When I teach rounding to a significant figure, I ask the class to discuss in pairs or small groups a definition for the word significant.  It is a word that all the students have heard before but not all are able to define. After 2 or 3 minutes of conversation I ask the students to […]

#### Calculating Instantaneous Rates of Change

When calculating instantaneous rates of change students need to  visualise the properties of the gradient for a straight line graph.   I use the starter activity to see if they can match four graphs with their corresponding equations. The only clue is the direction and steepness of the red lines in relation to the blue line […]

#### Converting Between Fractions, Decimals and Percentages

Fractions, decimals and percentages are ways of showing a proportion of something.  Any fraction can be written as a decimal, and any decimal can be written as a percentage.  In this blog I discuss how to use the place value table and equivalent fractions to illustrate how fractions, decimals and percentages are connected. You can […]