CK-12 Foundation
Ck 12: Algebra: Applications Using Linear Models
[Free Registration/Login may be required to access all resource tools.] In this lesson students write and solve linear equations to model real-world scenarios. Students watch a video tutorial, explore guided notes and attempt practice...
Interactive Mathematics
Interactive Mathematics: Tangents and Normals
Finding the slopes and equations of the tangent and normal lines of curves is demonstrated using derivatives. Interactive examples are provided.
Department of Defense
Do Dea: Normal Line to a Curve
The tangent to a curve is always found at a certain point along the curve. Often you will be asked to find the normal to a curve at a point. View an example on this site.
Other
Taro: An Application of the Derivative
This is a somewhat lengthy site discussing applications of the derivative using a trajectory problem as a template for understanding the concept. The page begins by defining a quadratic equation given three distinct points and then...
PBS
Pbs: The Lowdown: What You Need to Know About Immigration Reform
Interpret graphs showing changes over time in the percentage of foreign-born US residents and in annual deportations in this interactive from KQED. In the accompanying classroom activity, students use the interactive and look at how...