Students went through a "KWL" type process and shared the knowledge that they had already gained in their Electricity unit about how we can rethink the use of renewable/non-renewable energy sources. They then went on to come up with ideas on how a 'future city' would look where each student pair would be able to design one part of the city with the aim of helping some type of 'social issue' or 'social challenge' in the world.