1x1 - Local Food

May 1, 2017

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.

1x2 - Recycling

May 7, 2018

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.

1x3 - Saving Energy

November 1, 2016

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.

1x4 - Rainwater Harvesting

November 7, 2016

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.

1x5 - Reducing Car Use

November 27, 2017

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.

1x6 - Reducing Food Waste

November 27, 2017

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.

1x7 - Wood Fuel

December 4, 2017

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.

1x8 - Lamb vs Snail

December 11, 2017

1x9 - Biodiversity

September 18, 2017

Stefan Gates

Self