CK-12 Foundation
Ck 12: Measures of Central Tendency and Dispersion Grades 11 12
[Free Registration/Login may be required to access all resource tools.] This Concept introduces students to the most common measures of central tendency: the mean, median and mode.
Curated OER
Triangle Medians
MathWorld provides an example and explanation for the median of a triangle. Lines A1M1, A2M2, and A3M3 are the medians of triangle A1A2A3.
Curated OER
Clip Art by Phillip Martin: Mean Median Mode Range
A clipart illustration by Phillip Martin titled "Mean Median Mode Range."
Texas Instruments
Texas Instruments: Learning to Do Linear Regressions
This activity compares children's age to height to teach linear regressions. The handout includes notes for students and teachers with a step-by-step lesson on how to do three types of linear regressions - Best Fit line, Median Line and...
Other
Csulb: Stem: How Much Water Fits on a Penny? [Pdf]
Students explore mean, median, mode, and range with this hands on activity.
Texas Instruments
Texas Instruments: Exploring the Centroid of a Triangle
In this activity, students investigate what happens when all three medians of a triangle are drawn. They learn how to locate the centroid. [Requires Adobe Reader.]
Texas Instruments
Texas Instruments: Math Today Dangerous Births
In this activity, using the USA TODAY Snapshot "Dangerous births" students will explore the geometric relationships of triangles using perpendicular bisectors of the sides, bisectors of the angles and medians of the triangle. They will...
Other
Tulpehocken Area School District: Graphing and Analyzing Scientific Data
Student worksheet with explanation of pie, bar, and line graphs, the parts of a graph, and the definition of mean, median, and mode. This summary is followed by an exercise for each type of graph within a scientific context.
US Census Bureau
United States Census Bureau: Census Blog: Income vs Earnings
This page explains the difference between income and earnings. Discusses median income and gender differences.
BBC
Bbc: Bitesize: Rectilinear Shapes
Find the gradient, equations and intersections of medians, altitudes and perpendicular bisectors using our knowledge of the mid-point as well as parallel and perpendicular lines.
Texas Instruments
Texas Instruments: Measures of Central Tendency
Mean, median, and mode are measures of central tendency in data analysis. Each can be used to identify central tendency. Box-and-whiskers plots are a visual representation of collected data involving medians.
Texas Instruments
Texas Instruments: Finding Linear Models
Students graph a scatter plot, find average rate of change, develop a linear model, find a linear regression and a median/median line for a set of data graphed in a scatter plot and predict profit.
Shodor Education Foundation
Shodor Interactivate: Skew Distribution
Change the median and standard deviation of an automatically generated normal distribution to create a skewed distribution, allowing you to observe properties like what it means for the mean, median, and mode to be different.
Concord Consortium
Seeing Math: Plop It
Plop It! lets you experiment with the concepts of mean, median, and mode (measures of center). You see the differences among them on a bar graph, as you add or remove blocks to an axis with a given range.
AAA Math
Aaa Math: Central Tendencies Notes
A complete description of mean, median and mode. Interactive games and practice exercises are included.
Texas Instruments
Texas Instruments: Math Today Humidity Makes Air Feel Even Hotter
Students note the range of heat indexes on the overall data as well as specific humidity levels and air temperatures. They find the mean and median of the ranges and calculate apparent temperatures for specific scenarios.
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