Creating and Estimating Nonlinear Models on Tuva (v2)
Lesson
In this tutorial, students explore the Dinosaurs dataset to learn how to create nonlinear models on Tuva. ![]720
Creating and Estimating Nonlinear Models on Tuva Some relationships in data do not follow a straight line. As one variable changes, the other may increase at a changing rate, forming a curve instead of a line. Nonlinear models help capture these patterns more accurately. Tuva’s Modeling Card allows you to create and adjust nonlinear equations directly on the graph. By changing parameters, you can shape the curve and estimate how well it fits the data. [---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 Create a nonlinear model in three quick actions: [---card Create a Scatterplot Drag a numerical attribute onto the x-axis Drag another numerical attribute onto the y-axis This creates a scatter plot showing the relationship between the two variables. ---]{border-color:#DADFE5;} [---card Add a Nonlinear Model From the toolbar, open the :ti[ti-f-of-x] Enter a nonlinear equation (for example, a quadratic form like Ax² + Bx + C) A curve appears on the graph. ---]{border-color:#DADFE5;} [---card Adjust and Fit the Model Use the sliders for the parameters (A, B, C) to reshape the curve As you adjust: The curve bends and shifts The fit to the data improves or worsens You can visually compare how well the model matches the pattern ---]{border-color:#DADFE5;} [---card In a Nutshell A nonlinear model uses a curve to represent relationships in data. Adjusting its parameters helps you find a better fit to the observed pattern. ---]{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: Nonlinear Models, Quadratic Models, Tutorial