Texas Instruments
Texas Instruments: Cutting Corners
Students' will continue to develop the idea of quadratic equations and parabolas.
Texas Instruments
Texas Instruments: Parabolic Secants
This activity introduces students to an interesting property of parabolas and a method of proving that property using the TI-89 scripts. They then use the CAS of their TI-89 to generalize upon specific results.
Other
Dans Math: Lessons: Intermediate Algebra
College professor Dan Bach presents a review of algebra concepts, including factoring, quadratic equations, and graphing parabolas. The examples are detailed, but easy to follow. This is a good site for reviewing before tests and quizzes.
Exploratorium
Exploratorium: Science Snacks: Parabolas
Recreate this optical illusion using two parabolic mirrors to make it appear like an object is in the center, when it is really just its image. This experiment requires special equipment which may need to be purchased.
Khan Academy
Khan Academy: Calculating the Touching Point
Calculate a point on a parabola using the string art construction
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Parabola
Dr. Math, in a reply to a student's question, explains how to find the location of the vertex and focus, calculate the distance between the focus and vertex, as well as identify the axis of symmetry and the directix.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Parabola Problems
Dr. Math tackles a problem about culverts. This is in response to question posed by a student.
Illustrative Mathematics
Illustrative Mathematics: F if Parabolas and Inverse Functions
This task assumes an understanding of the relationship between functions and equations. Students try to solve equations in order to find the inverse of a function given in equation form: when no such solution is possible, then the...
Texas Instruments
Texas Instruments: Numb3 Rs: Fresh Air and Parabolas
Based off of the hit television show NUMB3RS, this lesson examines a plane crash, and gets students to try to find the location of various pieces of wreckage. This is done using parametric equations which form a parabolic trajectory....
Texas Instruments
Texas Instruments: Intersection of a Line With a Parabola
In this activity, students use Computer Algebra System (CAS) tools to find intersections of linear and non-linear equations. They confirm their answers by graphing the equations on the calculator.
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: La Function Cuadratica. Parabolas.
In Spanish. In this unit you will examine the plot of a second -degree polynomial function. You will establish similarities and differences between the graphs of two second-degree polynomial functions from their coefficients.
Illustrative Mathematics
Illustrative Mathematics: F Le Finding Parabolas Through Two Points
For this task, students are asked to find the quadratic functions that pass through two given points on a coordinate grid and to describe how their graphs are related. Aligns with F-LE.A.2.
Khan Academy
Khan Academy: Graph Parabolas in All Forms
Graph quadratic functions given in any form.
Other
Desmos: Quadratic Bundle
A collection of activities where students investigate quadratic relationships. Activities explore uses of quadratic relationships, features of parabolas and how to describe them, graphing quadratic functions, a marble activity with...
Cool Math
Coolmath: Graphing by Completing the Square Intro
This algebra lesson introduces how to complete the square in a parabola.
CK-12 Foundation
Ck 12: Algebra: Identification of Quadratic Models
[Free Registration/Login may be required to access all resource tools.] Understanding the equations of parabolas
CK-12 Foundation
Ck 12: Algebra: Graphs of Quadratic Functions in Intercept Form
[Free Registration/Login may be required to access all resource tools.] Understanding the graphs of a parabola given equations. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.
Khan Academy
Khan Academy: String Art Construction
Create a parabola by adding strings between two control arms.
ClassFlow
Class Flow: Quadratics Zeros
[Free Registration/Login Required] Graph parabolas and discover the zeros. Calculate the roots by factoring.
Math Words
Math words.com: Axis of Symmetry of a Parabola
A basic definition for what the axis of symmetry of a parabola is, along with an illustration.
Curated OER
Zona Land: Conic Sections the Parabola
Shows the graph of a parabola and how it slices a conic section.
Curated OER
Zona Land: Conic Sections the Parabola
Shows the graph of a parabola and how it slices a conic section.
Other
Platonic Realms: Function
Resource provides an introduction to conics. A picture of each conic, the definition, and a brief discussion about the standard form of conic equations are given, along with encouragement to master conics.
Texas Instruments
Texas Instruments: Exploring the Vertex Form of the Quadratic Function
Students explore the vertex form of the parabola and discover how the vertex, direction, and width of the parabola can be determined by studying the parameters. They predict the location of the vertex of a parabola expressed in vertex form.
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