Curated OER
Quadratics: vertex form
Learners practice graphing quadratic equations to find the vertex of quadratic functions. They determine if the graph opens upward or downward as well as convert quadratic equations to vertex form from polynomial form. A lab version is...
Curated OER
Quadratics Introduction
Students investigate quadratic functions graphically and algebraically.
University of Ottawa (Canada)
University of Ottawa: Linear Algebra Close to Earth
The author of this site endeavours to explain how linear algebra has many applications in a wide range of disciplines, to help students see its uses in the real world.
Math Medics
S.o.s. Math: Sign of a Quadratic Function and Inequalities
This lesson discusses the sign of a quadratic function as it applies to inequalities.
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Student Achievement Partners
Student Achievement Partners: Looking for and Making Use of Structure [Pdf]
In this lesson, students solve quadratic equations and make use of the structure.
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...
Other
Ontario Ministry of Education: Grade11 Gsp Sketches
A selection of Grade 11 sketches for use with The Geometer's Sketchpad can be downloaded here. The files are in GSP format.
Oswego City School District
Regents Exam Prep Center: Solving Quadratic Equations With Complex Roots
These examples use the quadratic formula to solve quadratic equations. Learn what to do when the solution includes a complex number. Use the practice page and teacher resource page to enhance the lesson.
Other
Quick Math: Quadratic Equations
Complete step-by-step investigation of quadratic functions, allowing the user to input the function. Each step, from solving f(x) = 0 to graphing and finding extreme points, is covered in depth, via links for each step (requires...
Oswego City School District
Regents Exam Prep Center: Nature of Roots: Sum and Product
Use these materials for planning classroom instruction on roots of equations: a lesson with a quadratic equation investigation; practice questions with answers that will quiz students' grasp of solving quadratics and roots; and two...
Oswego City School District
Regents Exam Prep Center: Quadratic Equations, Discriminant, Quadratic Formula
A wealth of resources for teachers planning classroom instruction on quadratic equations, discriminant, and the quadratic formula: six lessons covering various ways to solve equations, complete with definitions and step-by-step solutions...
Student Achievement Partners
Illustrative Mathematics: Profit of a Company [Pdf]
Assess students understanding of three equivalent quadratic expressions with this assessment.
Department of Defense
Do Dea: Algebra 1: Semester Ii: Quadratics and Radicals
A learning module through which students learn about quadrics and radicals including quadratic functions, solving quadratic equations, radicals, operations on radicals, and radical equations.
PBS
Wnet: Thirteen: Math in Basketball: Lesson Plan
In this lesson plan, students will explore ways that mathematics are used in basketball. Students will explore the concept of a function and will learn to use function notation. Students will recognize, describe, and represent quadratic...
Texas Instruments
Texas Instruments: Factoring and Solving Quadratic Binomials
This TI-Navigator activity allows students to review the concept of factoring and solving quadratic binomials. Includes a connection to graphical solutions.
Texas Instruments
Texas Instruments: Video Tutorial Using the Graph Screen to Factor Quadratics
This tutorial shows you how to factor quadratic functions using the graph screen.
Texas Instruments
Texas Instruments: Mc Dougal Littell Algebra: Graph Quadratic Curves of Best Fit
Students will find the best-fit quadratic model for the given points
Texas Instruments
Texas Instruments: Greatest Area Activity
A classic problem looking at maximizing the area of rectangles given fixed perimeters. Uses graphing calculators to analyze data collected and to model a parabolic equation. Compiling class data provides a preliminary glance at families...
Texas Instruments
Texas Instruments: Numb3 Rs: Barging In
Based off of the hit television show NUMB3RS, this lesson exposes students to equations of variation (direct, inverse, and joint) in the real world, as well as having students work with such equations in the real world context. The...
Texas Instruments
Texas Instruments: Math Today for Ti: Is Leisure Time Really Shrinking
Students will to organize data from the USA TODAY Snapshot, "Is leisure time really shrinking?," into two scatter plots and determine the quadratic model for each scatter plot. Students will determine if these graphs intersect and learn...
Texas Instruments
Texas Instruments: Parabolas: Numb3 Rs: Structural Corruption
Based off of the hit television show NUMB3RS, this lesson helps students understand how changing the values of y=a(x-b)^2+c changes the graph of the associated parabola. This is framed in the context of a bridge jumper, who enters the...
Texas Instruments
Texas Instruments: Quadratic Graphing Investigation
This Computer Algebra System (CAS) activity encourages students to investigate the characteristics of a quadratic graph. Students analyze the effects of the coefficients on the graph.
Texas Instruments
Texas Instruments: How High Will It Bounce?
In this activity, students collect the height versus time data of a bouncing ball using the CBR 2. They find the relationship between the bounce number and the bounce height. They learn to graph scatter plots, calculate the maximum value...
Texas Instruments
Texas Instruments: Transforming Parabolas
1. Students will be able to review how to find the vertex of a parabola using a graphing calculator. 2. Students will be able to observe the relationship between the values of a, h and k and the graph of a parabola in vertex form. 3....