This clip shows the use of CAD (computer-aided design) modelling in the series 'Walking with Dinosaurs'. A visual effects supervisor describes the combination of 3D models with filmed backgrounds to produce a realistic effect for the BBC television series.
During a lesson researching different career opportunities, show this clip. Pupils could watch this clip (and others) and fill in a grid with notes about different job opportunities. After watching the clips, ask the pupils to do further research on the qualifications needed for each career they have investigated, and give each a score as to how much they would like to do that job.