Stefan visits an organic farm in Devon to uncover how ordering events, patterns and measuring can help work out what's good for the environment.

Stefan visits a vast recycling plant to explore how 2-D and 3-D shapes are used to sort and reuse rubbish, and visits a school that uses recycled objects in many different ways.

Stefan vists a brand new hospital in London where he learns about measuring and controlling temperature and visits a school that uses data collection to run an energy saving campaign.

Stefan visit a huge hi-tech greenhouse in Kent to learn how much rain can be collected from a roof using ideas of conservation of volume and calculating area.

Stefan explores alternatives to car use by pedaling a rickshaw across Bristol and constructs simple equations to calculate the carbon cost of a new cycle way.

In this episode targeted at the Primary maths curriculum Stefan visits a unique grocery in Manchester and learns how to reduce food waste by turning facts and figures into fractions and percentages.

In this episode, Stefan heads into the woods of Sussex to explore sustainable energy and meets a group of students who use algebra to compare different types of energy.