Khan Academy
Khan Academy: Multi Resolution Noise
In this 6-problem quiz/practice, students test their understanding of how multi-resolution curves can be used to create more interesting noise.
Math Open Reference
Math Open Reference: Polar Derivatives
Learn about polar derivatives with this helpful reference tool. Provides a detailed definition and examples that enhance further explanation. Includes links to related topics.
CK-12 Foundation
Ck 12: Algebra Ii: 5.3 Normal Distribution
This section explores normal distribution curves that have a unique, bell-like shape and represent data that is "normally" distributed. It also addresses how many real-life situations can be modeled by normal distribution curves.
Instituto Latinoamericano de la Comunicacion Educativa
Red Escolar: Curvas
In Spanish. In this activity you will discover what is a closed curve and an open curve.
ClassFlow
Class Flow: Curve Sketching
[Free Registration/Login Required] Linear, sine, and quadratic equations are displaying a number of graphs and tables. Challenging and might even challenge the teacher. Go for it.
University of St. Andrews (UK)
University of St. Andrews: Lissajous Curves
This site, which is provided for by the University of St. Andrews, allows you to zoom in/out and add evolutes, involutes, etc.