Curated OER
Mapping Data Made Manageable
Students explore how to select unbiased random samples as they choose report data to include on maps. They propose methods for choosing random numbers and discuss their advantages and disadvantages. They consider bias in science.
Curated OER
And the Survey Says...
Eighth graders evaluate whether a certain argument is valid or invalid. In this science lesson, 8th graders discuss the importance of using unbiased evidence. They design an experiment that they can test in school.