Collecting, displaying, and interpreting data has become a part of life in our fast paced technological world. In the following lessons students will be responsible for gathering and displaying data in a line plot. They will find two measures of central tendency according to the data. Students will work as a whole class, in groups, pairs, and individually.

This lesson will be a review of skills for calculating mean, mode, median, and range of a set of numbers to be created by the students. It will result in a seasonal display for the classroom or school-wide bulletin board.

Students learn a simple technique for quantifying the amount of photosynthesis that occurs in a given period of time, using a common water plant (Elodea). They can use this technique to compare the amounts of photosynthesis that occur under conditions of low and high light levels. Before they begin the experiment, however, students must come up with a well-worded hypothesis to be tested. After running the experiment, students pool their data to get a large sample size, determine the measures of central tendency of the class data, and then graph and interpret the results.

An interactive applet and associated web page that provide step-by-step instructions on how to find a median of a triangle using only a compass and straightedge. The method used involves bisecting one side, then drawing a line from this midpoint to the opposite vertex. The animation can be run either continuously like a video, or single stepped to allow classroom discussion and thought between steps. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

This module provides homework questions related to lessons on descriptive statistics. The original module by Dr. Barbara Illowsky and Susan Dean has been modified by Roberta Bloom. Some homework questions have been changed and/or added.

This geometry lesson provides a quick review of triangle medians and shows that the centroid is always 2/3 of the way along every median. [Geometry playlist: Lesson 28 of 31]

This geometry lesson provides the proof that the centroid is 2/3 of the way along every median of a triangle. [Geometry playlist: Lesson 29 of 31]

Students learn about the frequency range of human hearing by collecting data from a website simulation. They analyze the data to determine the typical range for students in their classroom. Students participate in a collaborative effort to gather scientific data on humans for use in designing an engineering product.

A web page and interactive applet illustrating the medians of a triangle. The applet shows a triangle where the user can drag the vertices to reshape it. As the triangle is being reshaped, the user can see the three median lines tracking the changes, and observe that that all three always intersect at a point inside the triangle. The page text explains that this point of intersection is also the centroid of the triangle, and explains how to determine the location of the medians. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

In NASA CONNECT, Team Extreme: The Statistics of Success, focuses on NASA's Space Operations Mission Directorate and the teamwork required to produce a successful space mission. Students will learn about the numerous systems, skills and capabilities involved in a mission and how NASA manages and integrates these systems. Students will draw a parallel between the teamwork used in a NASA mission and find out how teamwork energizes the popular sport of auto racing. Grades 6-8.

Highlight how changing a data set affects the mean, median, and mode with this tool (created by The Shodor Education Foundation and modified by The Concord Consortium) that allows you to add and delete data graphically.

This lesson involves students in collecting data, organizing data into a line plot, discussing statistics, calculating mean, median and mode and consumer awareness.

In this video from Cyberchase, Bianca uses data on past shoe sales to help her decide what quantities of each size she should order in the next shipment.

Descriptive and inferential statistics for the behavioral and neurological sciences are considered. Techniques such as t-tests, factorial analysis of (co)variance, correlation, multiple regression, and nonparametric tests are introduced. Subject provides an introductory overview of some advanced methods such as path analysis, factor analysis, discriminant analysis, and analysis of functional MRI data. Basic issues of research design and methodology intimately associated with data analysis are discussed.

An interactive applet and associated web page that show the definition and properties of a trapezoid in coordinate geometry. The applet has a trapezoid with draggable vertices. As the user re-sizes the trapezoid the applet continuously recalculates its altitude and median from the vertex coordinates. The trapezoid can be rotated on the plane to show the more complex cases. The grid, coordinates and calculations can be turned on and off for class problem solving. The applet can be printed in the state it appears on the screen to make handouts. The web page has a full definition of a trapezoid when the coordinates of the points defining it are known, and has links to other pages relating to coordinate geometry. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.