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Curated OER
Bias Sampling
Learners explore statistics by conducting a scientific study. In this data analysis lesson, students conduct a class poll about popular foods of their classmates. Learners complete a worksheet and discuss how bias opinions affect the...
Mathematics Assessment Project
Middle School Mathematics Test 1
A 13-page test contains two 40-minute sections, which provide word problems and applied analysis to cover material from pre-algebra through geometry.
Curated OER
Bias Sampling
Students demonstrate how the results of a poll or other scientific study can be biased by selecting special types of people to respond or by asking only certain questions.
PBS
The History and Use of Sampling Methods
Young mathematicians define population, draw convenience sample from the population, draw quota sample from the population, and draw random probability sample from the population. They explain why a random probability sample usually...
Curated OER
The Global Warming Debate and the Arctic Ice Cap
In this global warming and the Arctic ice cap worksheet, students use two graphs showing data about the amount of Arctic sea ice between 1950 and 2006 and the percent of people surveyed that believe the Earth has gotten warmer over the...