Key Stage 3

Showing 129–144 of 151 results

Key Stage 3

Subtracting Fractions using a Fraction Wall

Students learn how to subtract fractions with using equivalent fraction diagrams.  As learning progresses more a...

Subtraction with Decimal Numbers

How to use the column method to perform a subtraction with decimal numbers.  More able students add and subtract...

Subtraction with Negative Numbers

Students learn how to subtract with positive and negative numbers on a number line and using written methods.  M...

Surface Area of Cubes and Cuboids

Students learn how to find the surface area of cubes and cuboids using nets and 3D drawings.  As learning progre...

Surface Area of Prisms

Students use net drawings and 3D representations to calculate the surface area of prisms made from parallelogram...

Tessellation with Shapes

Students learn about tessellation with shapes.  More able students consider the angles of each shape.  Less able...

Total Surface Area of Cylinders

Students learn how to calculate the total surface area of cylinders using net drawings.  As learning progresses ...

Translating Shapes using Vectors

Students learn about translating shapes using vectors. As learning progresses they move from performing translat...

Understanding Set Notation

Students learn how to find the union and intersection of elements using basic set notation.  As learning progres...

Using Graphs to Solve Linear Equations

Students learn about using graphs to solve linear equations. Learning progresses from solving equations where th...

Using Parabolas to Solve Quadratic Equations

Students learn how to find the solutions to a quadratic equation using graphs.  Learning progresses from solving...

Using Real Life Graphs

Students learn how to model situations or procedures using real life graphs.  Learning progresses from drawing t...

Using Scientific Calculators

Students practise using scientific calculators to solve problems involving brackets, powers and the order of ope...

Vertically Opposite Angles and Around a Point

Building on angles on a straight line students learn how to recognise vertically opposite angles and find angles...

Volume of a Cylinder

Students learn how to calculate the volume of a cylinder both in terms of pi and as a decimal to three significa...

Volume of Cubes and Cuboids

Students learn how to find the volume of cubes and cuboids using the area of the  cross-section and depth.  Lear...

Mr Mathematics Blog

Mathematics OFSTED Inspection – The Deep Dive

Earlier this week, my school took part in a trial OFSTED inspection as part of getting ready for the new inspection framework in September 2019. This involved three Lead Inspectors visiting our school over the course of two days. The first day involved a 'deep dive' by each of the Lead Inspectors into Mathematics, English […]

How to Solve Quadratics by Factorising

The method of how to solve quadratics by factorising is now part of the foundational knowledge students aiming for higher exam grades are expected to have.   Here is an example of such a question. Solve x2 + 7x – 18 = 0 In my experience of teaching and marking exam papers students often struggle with […]

How Write 3 Part Ratios

When learning how to write 3-part ratios students need to understand how ratios can be made equivalent. The start of the lesson reminds students by asking which of six ratios is the odd one out.  This is presented to the class as they come into the lesson.    Writing Equivalent Ratios  A few students immediately go […]