Inverse Functions. Linear
This file starts with an example of how to find the inverse of a linear function. New examples can be generated and the graphs of both functions...

Carom Maths provides this resource for teachers and students of A Level mathematics.

This presentation begins with a reminder of some transformations of the plane before introducing the less well known transformation of Inversion. Students are able to experiment with an Autograph file to explore this concept...

From Science & Plants for Schools (SAPS), these materials encourage students to use disc diffusion tests to investigate antibacterial or anti-yeast properties. A wide range of products, both synthetic and natural, claim to have microbicidal properties. Students can...

One of a series of resources from Science & Plants for Schools (SAPS) investigating key topics in plant biology. An enjoyable and reliable practical activity allowing students to compare factors affecting photosynthesis. Possible investigations could include the rate of photosynthesis in sun and shade plants,...

In this investigation, students look at the way in which flowering plants use colour to attract pollinators, and particularly bees. They carry out a variety of short practicals and research activities, designed to allow students to gain a deeper understanding of adaptation, evolution and biophysics – understanding...

One of a series of resources from Science & Plants for Schools (SAPS) investigating key topics in plant biology. In this practical activity, students to investigate the role of light in starch production in leaves during the process of photosynthesis. By using leaf discs rather than whole leaves, a number of...

One of a series of resources from Science & Plants for Schools (SAPS) investigating key topics in plant biology. This activity offers a simple way to investigate phototropism: the response of seedlings to different wavelengths of light. This technique will help students investigate this tropic response, using...

One of a series of resources from Science & Plants for Schools (SAPS) investigating key topics in plant biology. In this activity, students investigate the effects of the hormone auxin (Indole Acetic Acid or IAA) as a plant growth regulator, giving opportunities to look at auxiliary bud development, root...

One of a series from Science & Plants for Schools (SAPS) investigating key topics in plant biology. This practical introduces a simple method to grow radishes, for investigations into the effect of a range of factors on plant growth, including levels of pollutants,...

Investigating serious crimes such as murder, rape and terrorism requires forensic science experts. These people work alongside the police to find the evidence that will bring the culprit to court.

In this Catalyst article, Tony Hargreaves looks at criminal poisoning and shows how forensic science is used to...

A Catalyst article about road traffic accidents (RTAs). After the accident police and other investigators try to establish what went wrong. This may be with a view to prosecuting a motorist, or simply in an effort to improve road safety. An understanding of the physics of motion plays a large part in such...

One of a series of resources from Science & Plants for Schools (SAPS) investigating key topics in plant biology.

This activity allows students to investigate many factors that influence seed germination, including temperature, light, nutrient levels, pollutant effects, tropisms and so on.

It...

The mathematical solution initially explains how to use calculus to find the stationary points of the curve y = x/(16+x²) by rewriting the equation as a product using index form and using the product rule to find the differential. The stationary points are found by equating the differential to zero and...

In this activity, from the LSIS, students discover for themselves the importance of the perpendicular distance in moments. It is presented as a whole class discussion but can easily be adapted for small group work.

The activity uses a magnetic disc that takes about 15 minutes to construct. The activity will...