This detailed lesson carries on with the key theory behind the labour market. This lesson looks at how to calculate and show both the marginal revenue product (MRP) and marginal physical product (MPP) of labour on a curve. The lesson includes all the key theory, diagrams and questions. I have also included a student copy of the lesson. I have also included a fun revision game called Keyword Championships - a great way to learn and re-cap on all the keywords for Economics. This is a perfect lesson for Economics and helps cover a tough topic. Lesson 3 of 6 of the labour market.