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Interactive
CK-12 Foundation

Fitting Lines to Data

For Students 8th - 10th Standards
Scatter the TV sales over weeks. Pupils create a scatter plot to display the number of TV sales over a period of several weeks. The interactive allows class members to create two lines of best fit. Then they determine which line fits...
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Worksheet
Curated OER

Line of Best Fit

For Students 7th - 8th
In this line of best fit worksheet, students solve and complete 8 different problems that include plotting and creating their own lines of best fit on a graph. First, they study the samples at the top and plot the ordered pairs given on...
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Lesson Plan
West Contra Costa Unified School District

Correlation and Line of Best Fit

For Teachers 8th - 10th Standards
Computers are useful for more than just surfing the Internet. Pupils first investigate scatter plots and estimate correlation coefficients. Next, they use Microsoft Excel to create scatter plots and determine correlation coefficients and...
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Lesson Plan
Virginia Department of Education

Line of Best Fit

For Teachers 10th - 12th Standards
Pupils work through a guided activity on fitting a linear equation to a set of data by entering the data into a calculator and trying to envision a line of best fit. They then have the calculator determine the least-squares line and...
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Assessment23:03
Mathed Up!

Scatter Graphs

For Students 7th - 10th Standards
Make an estimate by getting in line. The class works with scatter plots and lines of best fit to make an estimate for given values. Pupils determine whether there is a positive or negative correlation and draw a best-fit line. Using the...
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Handout
Charleston School District

The Line of Best Fit

For Students 8th - 9th Standards
If it's warm, they will come! Learners find a line of best fit to show a relationship between temperature and beach visitors. Previous lessons in the series showed pupils how to create and find associations in scatter plots. Now, they...
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Lesson Plan
Virginia Department of Education

Linear Curve of Best Fit

For Teachers 10th - 12th Standards
Is foot length to forearm length a linear association? The class collects data of fellow scholars' foot length and the length of their forearms. They plot the data and find a line of best fit. Using that line, they make predictions of...
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Lesson Plan
Curated OER

Animal Brains

For Teachers 7th - 9th Standards
Do big bodies make big brains? Let your learners decide whether there is an association between body weight and brain weight by putting the data from different animals into a scatterplot. They can remove any outliers and then make a line...
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Lesson Plan
EngageNY

Determining the Equation of a Line Fit to Data

For Teachers 8th Standards
What makes a good best-fit line? In the 10th part of a 16-part module, scholars learn how to analyze trend lines to choose the best fit, and to write equations for best-fit lines to make predictions.
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Lesson Plan
Curated OER

Scatter Diagrams and Curve Fitting

For Teachers 10th - 12th
In this Scatter Diagrams and Curve Fitting worksheet, learners are guided in how to graph a scatter diagram (plot) and a Best Fit Line using a TI-83 graphing calculator. 
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Lesson Plan
Curated OER

Scatter-Brained

For Teachers 7th
Seventh graders graph ordered pairs on a coordinate plane. They create a scatterplot. Additionally, they determine the line of best fit and investigate the slope of the line. Multiple resources are provided. An excellent resource!
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Lesson Plan
Curated OER

Line of best fit

For Teachers 9th - 11th
In this Algebra I/Algebra II worksheet, students determine the line of best fit for a scatter plot and use the information to make predictions involving interpolation or extrapolation.  The one page worksheet contains one multiple choice...
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Lesson Plan
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EngageNY

More on Modeling Relationships with a Line

For Teachers 9th - 10th Standards
How do you create a residual plot? Work as a class and in small groups through the activity in order to learn how to build a residual plot. The activity builds upon previous learning on calculating residuals and serves as a precursor to...
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Lesson Plan
Willow Tree

Approximating a Line of Best Fit

For Students 9th - 12th Standards
You may be able to see patterns visually, but mathematics quantifies them. Here learners find correlation in scatterplots and write equations to represent that relationship. They fit a line to the data, find two points on the line, and...
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Lesson Plan
Curated OER

How Long Can You Go?

For Teachers 8th
Eighth graders examine the usefulness of a line of best fit by collecting and graphing data, using a graphing calculator to determine the line of best fit, and making a variety of predictions. They watch a video, then design a...
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Activity
Curated OER

Prescient Grading

For Teachers 9th - 12th Standards
Do homework grades really determine test scores? Learn whether lines of best fit, correlation coefficients, and residuals can be used to determine test scores when given homework grades. (It would certainly save teachers time in grading...
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Interactive
National Council of Teachers of Mathematics

Geogebra: Residuals and Linear Regression

For Students 9th - 12th Standards
If the line fits, use it. Using a Geogebra interactive, pupils plot points and try to find the best fit line. They assess the linear fit by analyzing residuals. A radio button allows participants to show the regression line and the...
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Lesson Plan
Curated OER

Is there Treasure in Trash?

For Teachers 7th - 10th
More people, more garbage! Young environmentalists graph population growth against the amount of garbage generated per year and find a linear model that best fits the data. This is an older resource that could benefit from more recent...
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Lesson Plan
American Statistical Association

What Fits?

For Teachers 6th - 8th Standards
The bounce of a golf ball changes the result in golf, mini golf—and a great math activity. Scholars graph the height of golf ball bounces before finding a line of best fit. They analyze their own data and the results of others to better...
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Lesson Plan
Curated OER

When Will We Ever Use This? Predicting Using Graphs

For Teachers 7th - 12th
Here are a set of graphing lessons that have a real-world business focus.  Math skills include creating a scatter plot or line graph, fitting a line to a scatter plot, and making predictions. These lessons are aimed at an algebra 1 level...
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Activity
Centre for Innovation in Mathematics Teaching

Ten Data Analysis Activities

For Students 9th - 12th
This thirteen page data analysis worksheet contains a number of interesting problems regarding statistics. The activities cover the concepts of average measurements, standard deviation, box and whisker plots, quartiles, frequency...
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Lesson Plan
American Statistical Association

Scatter It! (Predict Billy’s Height)

For Teachers 8th Standards
How do doctors predict a child's future height? Scholars use one case study to determine the height of a child two years into the future. They graph the given data, determine the line of best fit, and use that to estimate the height in...
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Interactive
Shodor Education Foundation

Regression

For Students 9th - 12th Standards
How good is the fit? Using an interactive, classmates create a scatter plot of bivariate data and fit their own lines of best fit. The applet allows pupils to display the regression line along with the correlation coefficient. As a final...
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Lesson Plan
EngageNY

Modeling Relationships with a Line

For Teachers 9th - 10th Standards
What linear equation will fit this data, and how close is it? Through discussion and partner work, young mathematicians learn the procedure to determine a regression line in order to make predictions from the data. 

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