Year 9 Term 6

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Year 9 Term 6

Pythagoras’ Theorem in 3D

Students learn how to calculate unknown lengths in cuboids and other solids by applying Pythagoras' Theorem in ...

Constructing Angle Bisectors

Students learn how to construct angle bisectors using a pair of compasses and a straight edge.  The lesson cover...

Constructing Loci and Regions

Students learn how to construct the locus of a region by considering loci about a point and line.  Learning is e...

Constructing Loci and Equidistant Paths

Students learn how to construct equidistant paths and identify specific points using angle bisectors and constru...

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 about a Point

The main concept throughout the lesson is the sum of angles on a straight line being equal to 180° and those abo...

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...

Drawing and Measuring Angles

Drawing and Measuring Angles: Students learn how to measure and construct different types of angles using a rule...

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...

Pythagoras’ Theorem – Finding the Hypotenuse

Students learn how to derive and apply Pythagoras' Theorem to find the hypotenuse of right-angled triangles.  A...

Pythagoras’ Theorem – Shorter Sides

Students learn how to calculate a shorter side of a right-angled triangle using Pythagoras' Theorem.  As learni...

Introducing Pythagoras’ Theorem

Students discover Pythagoras’ Theorem through construction of Pythagorean triples.  As learning progresses stude...

Mr Mathematics Blog

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 […]

How to Simplify Surds

When learning how to simplify surds students need to understand the difference between a rational and irrational number. Rational numbers include integers and terminating and repeating decimals. They can be written as a fraction with both the numerator and denominator as integers. An irrational number is a number which, in its decimal form does not […]