Year 9 Term 4

Showing 1–16 of 26 results

Year 9 Term 4

Addition and Subtraction with Fractions and Mixed Numbers

Students learn how to perform addition and subtraction with fractions and mixed numbers.  As learning progresses...

Frequency Trees

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

Area of Parallelograms and Trapezia

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

Perimeter of Shapes

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

Area of Irregular Shapes

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

Area of Compound Shapes

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

Area of Triangles

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

Area of Rectangles

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

Angles in a Quadrilateral

Students extend their understanding of angles in a triangles to calculate missing angles in a quadrilateral.  As...

Angles in Parallel Lines

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

Problems with Angles in Parallel Lines

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

Angles in a Triangle

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

Bearings and Scale Drawings

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

Constructing Regular Polygons

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

Interior and Exterior Angles

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

Adding Fractions with Different Denominators

To add and subtract fractions with different denominators students are taught to use equivalent fractions to fin...

Mr Mathematics Blog

Comparing Datasets using the Mean and Range

In my experience, students, in general, find the concept of a mean straightforward to calculate and understand. However, the mean alone does not provide a complete picture of a set of data. To achieve this, a measure of spread is also required. The range is the simplest measure that can be used for this. Not […]

Solving Problems with Angles in Parallel Lines

Solving problems with angles in parallel lines is like solving a murder mystery.  One clue leads on to the next and the next until the murderer is found.  However, it doesn’t end there.  The detectives need to explain their reasoning in court using the relevant laws and procedures should the murderer plead not guilty.  If […]

Solving Two Step Equations using the Balance Method

An equation is when one expression, or term, is equal to another.  To solve an equation means to find the value of the variable (represented by a letter) that makes the two expressions equal.  There are two types of equations for secondary school mathematics, linear and none-linear.  In this blog I write about how I […]