A Catalyst article about the rock cycle which is responsible for the formation of many different types of rocks and minerals. The article explores the formation of minerals, their chemical composition and internal structure together with the reason for mineral hardness. As silicates form a third of all known...

This activity is an ideal opportunity to use the real-world context of logistics as an application of solving multi-step mathematical problems and evaluating the outcomes. It is one of three mathematical problem-solving activities with a...

This activity is an ideal opportunity to use the real-world context of logistics to demonstrate the practical use of greedy...

This activity is an ideal opportunity to use the real-world context of logistics to develop students' use of formal...

This animated video describes how Einstein’s field equations led to the cosmological constant, which was later shown to be incorrect.  However, Friedmann and Lemaitre found solutions to Einstein’s equations, if the universe was still expanding.  Hubble found evidence from the red-shift of galaxies that the universe...

Looks at the impact of global warming and to what extent humanity has contributed to this.  The animated video explains the greenhouse effect, and how greenhouse gases can absorb infrared radiation and then re-emit it.   It also looks at how the oceans become more acidic when carbon dioxide is absorbed from the...

This mini-course from the Nuffield Exploratory Data Skills Project: Making Sense of Data is an introduction to collecting, organising and interpreting data.

This mini-course consists of five units:

Where does the money go? is an introduction to looking at tables of data. It includes...

This mini-course from the Nuffield Exploratory Data Skills Project: Making Sense of Data is an introduction to the graphical presentation of data.

It consists of five units:

Changing patterns of risk considers what makes an effective chart, and emphasises the point that the choice of...

This mini-course from the Nuffield Exploratory Data Skills Project: Making Sense of Data is particularly appropriate for dealing with time-series data - data which show how one quantity changes over time.

It consists of five units:

Looking at population changes introduces some of the...

This mini-course from the Nuffield Exploratory Data Skills Project: Making Sense of Data is about looking at, analysing and comparing batches of data. In this mini-course students should learn how to:

• look at a...

This mini-course from the Nuffield Exploratory Data Skills Project: Making Sense of Data is about relationships between two, or more, quantities, looked at by plotting graphs of one against the other. As a result of this mini-course students should:

• look at the shape of the scatterplot before making any...

This mini-course from the Nuffield Exploratory Data Skills Project: Making Sense of Data is about how to deal with data in the form of counts. Such data, often transformed into percentages, are very common in newspapers as well as in technical reports and publicly available statistics. As a result of this mini-...