This download includes a detailed lesson plan and a PowerPoint to aid the delivery of a lesson on Stability (following on from Moments).
This PowerPoint also contains a practical idea (See thumbnail) and the lesson plan links to this.
There are 7 main slides and then 2 slides that give a worked example of questions from the AQA textbook if you use it. Consider the price to be for the 7 slides and the additional 3 slides to be free when purchasing.
Centre of mass
Knowledge that the position of the centre of mass of uniform regular solid is at its centre