Texas Instruments
Texas Instruments: Influence and Outliers
In this activity, students will identify outliers that are influential with respect to the least-squares regression line. Students will describe the role of the location of a point relative to the other data in determining whether that...
Physics Aviary
Physics Aviary: Quick Graph 3.0
This program was designed as a quick graphing program that students could use on a computer, tablet or smart phone when a more complex graphing program is not available. This program will let students plot up to 10 data points and then...
Texas Instruments
Texas Instruments: Numb3 Rs: Less Is More
Based off of the hit television show NUMB3RS, this two-part lesson begins by having students try to find the line of best fit for a given set of data (strike outs vs. home runs). The second part of the lesson shows how least squares...
Illustrative Mathematics
Illustrative Mathematics: 8.sp Laptop Battery Charge
This task looks at how long it takes for a laptop battery to fully charge. Students make a scatter plot of data, draw a 'line of best fit,' and predict the time it will take to reach a full charge. Aligns with 8.SP.A.2.
Other
Ohio Department of Education: Eighth Grade Achievement Test (Practice Test)[pdf]
Half-length practice test for the eighth grade OAT (Ohio Achievement Test). The test includes 15 multiple-choice and 4 open-response questions dealing with topics such as geometry (comparing volumes, angle measures), data analysis...
Alabama Learning Exchange
Alex: Function Machine
During this lesson, eighth grade students will interpret the perimeter of a train of triangles, squares, trapezoids, or hexagons as a function (for each input, there will be exactly one output). Students will represent their data in a...
Calculator Soup
Calculator Soup: Variance Calculator
Variance is a measure of dispersion of data points from the mean. Low variance indicates that data points are generally similar and do not vary widely from the mean. High variance indicates that data values have greater variability and...
PBS
Pbs Learning Media: Hacker's Four Zergen Game
In this video segment from Cyberchase, the CyberSquad determines the fairness of a game in which there are three shapes distributed equally on nine squares.
Richland Community College
Richland Community College: Math 116 Lecture Notes
This site from the Richland Community College provides the detailed lecture notes to a college algebra course, complete with equations and definitions. Content ranges from "functions and their graphs" to "conics and parametric equations."