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Teachers — Training of
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Sampling (Statistics)
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1.

## Woodpecker Habitat [electronic resource]

First- and second-graders apply probability and sampling techniques to their study of the habitat of the endangered red-cockaded woodpecker. Using colored cubes to represent elements in the environment, students simulate factors that might harm or help the birds. Covers the following NCTM standards: statistics and probability, whole number computation, reasoning, and connections.
Online
1997
2.

## Bubble Gum Contest [electronic resource]

Third-graders stage a bubble gum blowing contest using sampling to determine the ratio of winners to entrants. They enlarge their sample, collecting data from all the third-graders in their school and use fractions to interpret the data. Covers the following NCTM standards: statistics and probability, fractions and decimals, connections, and communication.
Online
1997
3.

## Statistics as Problem Solving [electronic resource]

Introduces statistics and a problem-solving process and examines it four components: asking questions, collecting appropriate data, analyzing the data and interpreting the results. Investigates the nature of data and its potential sources of variation. Discusses variables, bias and random sampling. Concludes with a segment on measuring and the accuracy of measurement in home building and carpentry.
Online
2001
4.

## Designing Experiments [electronic resource]

Examines how to collect and compare data from observational and experimental studies. Demonstrates how it is hard to do something randomly. Shows how to design a comparative experiment. Explores paired and unpaired comparative studies. Concludes with a segment on trusting results of medical studies and how the interpretation is only as good as the design of the study.
Online
2001
5.

## Random Sampling and Estimation [electronic resource]

Shows how to select a random sample and use it to estimate characteristics on an entire population. Demonstrates stem and leaf plots and box plot analysis. Explains how to describe variation in estimates, and the effect of a sample size on an estimate's accuracy. Touches on the central limit theorem. Concludes with a segment on saving fish species.
Online
2001