A really detailed lesson on the law of diminishing returns and returns to scale. This lesson looks at the difference between the short-run and long-run and introduces the concept of the law of diminishing returns with nice clear and fun examples. The lesson then explains returns to scale and the three possibilities. I have tried to make this tricky topic easy for students to understand and included various tasks throughout the lesson. There are graph and calculation questions and a exam style question to finish off. I have also included a nice multiple choice quiz on the topic which would be perfect for a plenary / starter task. Perfect set of resources for Economics / Microeconomics.