Data Collecting Comments

I like this lab a lot, because it relates astronomical data, which may seem kind of mysterious and far away, to something really familiar and concrete: percentages of people with ear and body piercings. Students get to figure out what they expect based on another study, then compute their own values based on data given to them. Then, by the magnitude of their uncertainty, they can infer whether the other study had a larger or smaller data set. IT does a good job of combining comprehension, application, analysis and synthesis questions.