Creating and Estimating Linear Models on Tuva (v2)
Lesson
In this tutorial, students explore the Dinosaurs dataset to learn how to use the Modeling Card on Tuva. They then learn how to graph linear and nonlinear functions in the context of real data. ![]720
*Creating and Estimating Linear Models on Tuva * When two numerical variables form a pattern that looks like a straight line, a linear model can help describe how they are related. Tuva’s Movable Line tool lets you adjust a line directly on the graph to see how well it fits the data. This is similar to drawing a best-fit line by hand, but with instant feedback. [---cta ⚡ Ready to practice? Jump straight into the interactive tool. ---]{border-left:#ecb606;buttons:[{"type":"enroll","text":"Enroll in series","bg":"#682D8A","color":"#ffffff","border":"#682D8A","icon":"ti ti-add"},{"type":"modeltool","text":"Try It Out Now","bg":"#ffffff","color":"#682D8A","icon":"ti ti-external","border":"#682D8A"}];} !![tuva]560x315 How It Works Add and fit a linear model in three quick actions: [---card Create a scatter plot Drag one numerical attribute to the x-axis and another to the y-axis. ---]{border-color:#DADFE5;} [---card Add a Movable Line From the toolbar, choose :ti[movable-line] to place a line on the graph. ---]{border-color:#DADFE5;} [---card Adjust for best fit Drag the middle of the line to change the intercept Drag either end to change the slope Stretch the line along its direction to extend it ---]{border-color:#DADFE5;} [---card In a Nutshell As you move the line, its equation updates automatically. This helps you see how slope and intercept affect the fit before using formal methods like least squares. ---]{border-color:#DADFE5;} [---cta ⚡ Try It Out Jump straight into the interactive tool. ---]{border-left:#ecb606;buttons:[{"type":"enroll","text":"Enroll in series","bg":"#682D8A","color":"#ffffff","border":"#682D8A","icon":"ti ti-add"},{"type":"modeltool","text":"Try It Out Now","bg":"#ffffff","color":"#682D8A","icon":"ti ti-external","border":"#682D8A"}];}
Topics and standards: Line Of Best Fit, Linear Relationships, Tutorial