Texas Instruments
Texas Instruments: Conics in Standard and Parametric Form
This is a second learn check to use after completing the intro to changing from rectangular form to parametric form of the equations of conics.
Texas Instruments
Texas Instruments: Conics & Parametrics 1
This activity is a LearningCheck to quickly assess students' ability to identify conics from their equations in both rectangular and parametric form.
Other
Git: What Is the Slope Intercept Form of a Line?
Not only does this site show what the slope-intercept form is, but it helps you find the slope and the intercept of a line. There is also additional information on parallel lines, parametric form, and the distance between two points.
Khan Academy
Khan Academy: Rendering: Ready to Dive Into Some Math?
In this lesson we are going to explore the most fundamental calculation a ray tracer performs: ray object intersection. It also lists information you need to know before you start this lesson.