Economies and Diseconomies of Scale - 'Production Line Challenge' classroom resource
Here's a 5-10 minute classroom resource that you might find useful if you are revising internal and external economies and diseconomies of scale.
The Powerpoint file has 10 examples scrolling past on the production line over a 2 minute period. Students have to allocate them as either internal or external economies or diseconomies of scale.
Note: This is a version of a Powerpoint resource which includes 20 examples available as part of the resource pack available on our up-coming Wow Economics CPD event.