This lesson develops the concept of naming and classifying quadrilaterals according to their properties. Students identify the minimal information required to define a quadrilateral. They sketch quadrilaterals with given conditions.

During the first part of the lesson students choose from the words ‘all’, ‘...

This lesson develops the concept of constructing triangles with given conditions. In particular students will:

• Recall and apply triangle properties
• Determine whether a set of given conditions for the measures of angle and/or sides of a triangle describe a unique triangle, more than one...

This is a problem solving lesson, designed to help you assess how well students are able to:

• Select appropriate mathematical methods to use for an unstructured problem
• Interpret a problem situation, identifying constraints and variables and specify assumptions.
• Work with 2- and 3-...

This is a problem solving lesson that is designed to help students to:

• Understand the connection between relative frequency and probability
• Gain experience of designing and carrying out a probability experiment
• Calculate a theoretical probability for a practical scenario

In this resource students are given a quadrilateral with one angle of 60 degrees and varying side lengths- with two of the sides of equal length. The challenge is to calculate the lengths of the diagonals.

Each student worksheet contains a different quadrilateral, but the solutions all have something in...

This lesson develops the concept of Pythagoras’ theorem. In particular students will:

• Use the area of right triangles to deduce the areas of other shapes
• Use dissection methods for finding areas
• Organise an investigation to systematically collect data
• Deduce a generalizable...

This is a problem solving lesson, designed to help you assess how well students are able to:

• Select appropriate mathematics to solve a problem
• Compare and evaluate different methods for solving a problem and make generalizations about the appropriateness of different approaches
• ...

This is a problem solving lesson, designed to help you assess how well students are able to:

• Interpret and use scale drawings
• Use proportional reasoning
• Work with metric units

The initial problem is to construct and conversion graph to convert between measurements in the...

In this resource linked to COP27 in Egypt, maths students apply pythagoras’ theorem to solving Egypt’s road building conundrum. The resource explores efficient road designs and the climate impacts of car travel then uses the context of reducing travel time for the most people, reducing the length of new roads and...

This lesson develops the concepts of estimating the lengths of everyday objects, and converting between decimal and scientific notation.

An introductory activity looks at converting between decimal and scientific notation.

The main activity involves a collaborative exercise centred around picture...

This is a problem solving lesson, designed to help you assess how well students are able to:

• Model a situation.
• Make sensible, realistic assumptions and estimates.
• Use assumptions and estimates to create a chain of reasoning, in order to solve a practical problem.

This...

This resource develops the concept of substitution of integers, fractions, decimals, and directed numbers into inequality statements in order to test their validity. Students also represent inequalities algebraically and in words.

An initial question that students work on is representing the statement

This is a concept development lesson that is designed to assess how well students understand the concepts of:

• Equally likely events
• Randomness
• Sample size

The central theme of the lesson is to address common misconceptions relating to probability. The main activity is to...

This resource requires problem solving using skills in forming and factorising expressions.

Students investigate the sum of four consecutive numbers. Initially this is done using numerical examples. There are a series of statements for students to classify as ‘sometimes true’, ‘always true’, or ‘never true...

In this activity, students examine changes to forests in cross-border regions of Africa and Borneo using Google Earth Pro to help identify features shown in satellite images and make measurements. The context allows students to explore the factors which put pressure on forested areas, and what is being done to...