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.
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.
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.
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 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 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.