This series of interactive excel sheets explore ratio and proportion. New questions can be generated each time by the click of a button. To check the answers click on the smiley face.

The first sheet displays a series...

This MEP resource from CIMT is taken from text book 8A which covers the mathematics scheme of work for the first half of year 8.

Ratio and proportion covers: equivalent ratios, direct proportion, proportional division; splitting an amount into a given ratio, linear conversion; masses, length, currency and...

In this resource students are given the coordinates for each vertex of a triangle, with two of the vertices being horizontal. The challenge is to determine the ratio of the tangents of two of the angles.

Each student worksheet has a different triangle, but the solutions all have something in common.

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This worksheet challenges students to answer a series of questions themed around using ratios when creating drawing to scale and calculating gear ratios. It provides worked examples, examiners top tips and answers to each question. The resource is useful for teaching maths content in design and technology, or as a...

This Practical Action resource enables students to consider the need to reduce the negative impacts of  products on the environment and people. It enables students to evaluate products throughout their lifecycle and learn about inspirational products, companies and access to sustainable design briefs. The...

In this activity from Nuffield, students are asked to develop an experiment to measure and test people's reaction times. They can use any equipment available in the school/classroom, and will need to consider the reliability of their experiment and how any data collected will be analysed and presented.

These diagnostic questions and response activities (contained in the zip file) support students in being able to:

• Use observations to determine whether a substance is in solution.

• Recognise that a compound has properties (including solubility) that are distinct from its...

In this activity students tackle the problem of assigning a level of difficulty of various texts and books. The reading age is about the level of difficulty of text rather than the reading competence of the reader. The resource comprises an overview, teacher guidance...

Formulae is the focus of this resource, from the Centre for Innovation in Mathematics Teaching. Students will be familiar with the term 'reading age' and here they apply different formulae to a selection of text samples, before comparing and considering the accuracy of the results obtained.

Substitution into...

This role-play activity, from Eurostemcell, allows students to explore some of issues around stem cell research and its medical applications, enabling them to think about and develop their own views on this very exciting, controversial field. The role play has been designed to address the following issues:

This resource from SMILE Mathematics consists of six themed handling data projects. Each project has teacher guidance giving possible hypothesis within the theme and also potential outcomes at different mathematical levels for each project under the headings: planning...

A lesson plan that takes the students through the algorithm to making a paper airplane. It consists mainly of a worksheet task to correctly sequence the steps in making a paper airplane, in doing so they must discard any superfluous...

A lesson plan that takes the students through the algorithm to plant a seed. It consists mainly of a worksheet task to correctly sequence the steps in planting a seed, in doing so they must discard any superfluous information. The idea is then that they give their algorithm to another child for that child to follow...

These diagnostic questions and response activities (contained in the zip file) support students in being able to:

• Explain that the properties of a compound may not be inferred from the properties of elements made up of its constituent atoms.

• Use particle diagrams to represent the...