# Activities to Teach Students to Identify Lines of Best Fit

As students progress through their math education, they’ll encounter the concept of lines of best fit in statistics class. Lines of best fit, also known as trend lines, are used to help students identify and understand trends in data. As a teacher, it’s essential to come up with creative and engaging ways to help your students learn how to identify lines of best fit. In this article, we’ll take a look at some activities that you can use to help your students get comfortable with this statistical concept.

1. Scatter Plot Practice

Creating scatter plots is an excellent place to start when teaching students about lines of best fit. Have your students gather data sets, either real or hypothetical, and then create a scatter plot showing the relationship between the two sets of data. After they’ve created the scatter plot, have them start to observe any trends or patterns that appear. Do the plotted points appear to follow a line? Is the line increasing or decreasing? Once they’ve observed these trends, have them try to create their own lines of best fit by drawing a straight line which seems to fit the majority of the plotted points.

2. Group Research Project

Another way to teach lines of best fit is to have your students work in groups to research and create a trend line related to a particular topic such as income vs. education, healthcare costs vs. age, climate change vs. temperature, and many more. Have each group present their findings to the class, discussing how they came up with their line of best fit.

3. Cereal Box Project

This is a fun and interactive way to teach lines of best fit. Bring in various cereal boxes and have students measure and record the height and weight in grams for each one. Then have the students create a scatter plot and create a line of best fit using a ruler. Students can then analyze the data to see if there seems to be any correlation between the weight and the height of the cereal boxes.

4. Forecasting the Future with Lines of Best Fit

Create a scenario where your students are supposed to predict the future sales or future employment growth of a company where the only relevant data they have are the past sales or employment trends. Assign each student a company, and then with the help of Excel or a hand-drawn graph, have them analyze past trends and come up with predictions for the future.

5. PowerPoint Presentation

Have each student create their own PowerPoint presentation teaching their classmates about lines of best fit. They could include useful tips, a step-by-step guide on creating a line of best fit, and how it can be used in real life.

In conclusion, these fun and interactive activities are an excellent way to make learning about lines of best fit more exciting and engaging for your students. By using a combination of these methods, you can help your students gain a better understanding of statistics and prepare them for future math classes. Remember, practice makes perfect, and with enough practice, your students will master lines of best fit in no time!