Are you looking for a quick and easy way to help your students learn about data gathering or sampling techniques? If so, then this is the resource for you.The 2 pages of notes contains; vocabulary (population, census, sampling, biased sample and representative sample), a description of sampling methods (simple, self-selected, convenience, systematic, stratified and cluster), an example to complete with students which identifies the population, type of method used and biasness for three situatio