Texas Instruments
Texas Instruments: Curve Fitting for a Parabola
This is a TI-Navigator Activity Center file that is used as a class warm up or for checking understanding. Students are to contribute an equation of a parabola that will pass through the most number of sunflowers.
Illustrative Mathematics
Illustrative Mathematics: G Gpe Defining Parabolas Geometrically
The purpose of this task is to show that the points on a parabola can be characterized by being equidistant from a point (the focus) and a line (the directrix). Aligns with HSG-GPE.A.2.
Purple Math
Purplemath: Conics: Parabolas: Introduction
This reference material introduces the terms and equations related to parabolas in the context of conics. Also, relates concepts to previously-learned material and shows how to 'read' from the 'conics' form of the parabola equation.