This activity from the Nuffield Foundation shows students how to use a recurrence relation to work out how long it takes to pay off a credit card loan and how much it costs. They can use a graphic calculator or spreadsheet to do the working. After working through the given example, where a customer spends £1250 and...

This resource explains the check digit algorithm invented by Hans Luhn. This algorithm is widely used for both credit and debit cards to check small errors in the input of card numbers, using the final digit on the card as a check. 

The instructions clearly show how to apply the algorithm, and invites...

This item is one of over 25,000 physical resources available from the Resources Collection. The Archive Collection covers over 50 years of curriculum development in the STEM subjects. The Contemporary Collection includes all the latest publications from UK educational publishers.

This book contains both illustrations and real photography and is suitable for Year 3 to 7+. Key skills include: instructional text, understanding fact and opinion, exploring diagrams, scan texts, summarising information, identifying key features of non-fiction texts. Cross-curricular topics include websites for...

Earthworms can be found all over the outdoors. This title introduces them to young readers and gives them a close up look at the world of earthworms.

If you teach or work with students between the age of 11 and 19 and you want to inspire and motivate them to get involved in real science, then Crest Awards may be the vehicle to deliver this.

This guide, from triple science support, has been produced for teachers who are looking for activities with...

In this Crest Award accredited project, students monitor levels of atmospheric sulfur dioxide and rainfall acidity in the school grounds.  Suggested investigations include:

•  Investigate various methods of measuring acidities between pH4 and pH7, to decide which method is most accurate.
• Compare...

In this project students will research ways of detecting low concentrations of lead and apply these to test samples from the environment. The objective is to investigate whether lead from petrol still persists at the roadside in order to determine whether there is a lurking legacy of lead.

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This project encourages students to make contact with a business that performs quality control analyses, such as a public analyst who tests samples for the Trading Standards Department.  Students will need to carry out both quantitative and qualitative analysis on tablets with a single active ingredient, such as...

In this project, students make their own aspirin or paracetamol and then test the purity of the pain-reliever and compare it to shop-bought.  This covers titrations, chromatography and other analytical techniques.

The aim of this project is to investigate the properties of alcohol/water mixtures, and how these properties can be used to measure alcohol content. The alcohol in drinks is ethanol, C₂H₅OH. However, the ethanol used in the laboratory has been methylated by adding 5% of methanol, CH_3...

Astronauts are required to put many objects and devices together as part of their missions. Some of those are small objects that astronauts must manipulate during their stay at the International Space Station (ISS).

In this activity, teams of students will assemble a puzzle as quickly and correctly as...

Perform multi-joint weight-bearing exercises such as body-weight squats for lower body strength, and push-ups to develop upper and lower body strength. Push-ups should be done with arms extended (but not locked), and level with the chest. Students who cannot do standard push-ups should begin with bent-knee push-ups...

This item is one of over 25,000 physical resources available from the Resources Collection. The Archive Collection covers over 50 years of curriculum development in the STEM subjects. The Contemporary Collection includes all the latest publications from UK educational publishers.