The learning intention of this lesson was to understand what sampling is and why it is used. I wanted their understanding of sampling to come from a tangible experience - by actually sampling something physical themselves.
This video shows the class taking samples of around 16 sweets, then combining with another student to get a sample of around 32 sweets, and then combining with a group of four to get samples of around 64 sweets. The students record their samples at each step and then compare to the whole class population.
Detailed plan and reflection here