This virtual manipulative enables students to construct scatterplots to visualize the relationship between two variables. Students click on a point on a grid to enter data. The manipulative displays a red regression line that approximates the set of indicated points. A yellow dot indicates the mean value for the data. The number of points, the average x and y values, the correlation coefficient, and the equation for the regression line appear on the screen. Instructions for using the manipulative, a suggested activity, a lesson plan, and a link to the National Council of Teachers of Mathematics (NCTM) standard for data analysis and probability are included. Copyright 2005 Eisenhower National Clearinghouse

Summary

Subject keyword(s)	Data analysis, Data presentation, Mathematics, Regression and correlation, Scatter plot, Statistics
Grade level	Middle School, Informal Education
Intended audience	Learner
Resource type	Instructional Material
Resource format	text, text/html
Rights	Copyright 2003 MATTI Associates LLC. All rights reserved.

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