These materials are designed to support the DCELLS agenda for the development of thinking skills and AFL for learners following travel and tourism courses. Unit 2 – The impacts of tourism, sustainability and regeneration: Sustainable tourism, Social and cultural impacts of tourism, Economic impacts of tourism, The Ryder Cup - Impacts, Swansea Marina - Impacts. Developing thinking enables learners to gain a deeper understanding of topics, to think flexibly and to make reasoned judgements and decisions.