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Lesson Plan
Curated OER

Quadratic Formula

For Teachers 9th - 12th Standards
This worksheet is part of the TI-Nspire lesson on the quadratic formula. Pupils determine the solutions of a quadratic function by looking at a graph and the discriminant. They use the quadratic formula to solve quadratic functions on...
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Lesson Plan
Curated OER

Quadratic Formula

For Teachers 9th - 12th Standards
Mathematicians determine the solutions of a quadratic function by looking at a graph. They use the quadratic formula to solve quadratic functions on their Ti-Nspire.
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Lesson Plan
1
1
EngageNY

Using the Quadratic Formula

For Students 9th - 10th Standards
What is the connection between the quadratic formula and the types of solutions of a quadratic equation? Guide young mathematicians through this discovery as they use the discriminant to determine the number and types of solutions, and...
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Lesson Plan
West Contra Costa Unified School District

Investigating the Discriminant

For Teachers 9th - 12th Standards
When is finding the discriminant enough? Using the quadratic formula helps find solutions to quadratic equations, but there are times when just using the discriminant is appropriate. Use this algebra II lesson to help classes see the...
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Handout
3
3
El Paso Community College

Quadratic Equations

For Students 9th - 12th Standards
This resource has everything you need to know about solving quadratic equations. Factoring, completing the square, the quadratic formula, and using the discriminant are all there with with worked out examples and a 25 problem activity...
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Lesson Plan
Curated OER

Studying Solutions of Quadratic Equations

For Teachers 9th - 10th
In this algebra worksheet, students solve 8 quadratic equations by using the discriminant. They write the quadratic equation for 7 problems from the solution sets. Three of the solution sets contain imaginary numbers (i).
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Interactive
CK-12 Foundation

Discriminant

For Students 9th - 12th Standards
Discriminate between the types of roots. The interactive root introduces the discriminant and its connection to the types and number of roots. Pupils use a slider to view graphically the effect of the sign of the discriminant on a...
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Lesson Plan
Curated OER

Discriminating Against the Zero

For Teachers 9th - 12th Standards
Students explore the concept of quadratic equations.  In this quadratic equations instructional activity, students find the roots or zeros of quadratic equations using the quadratic formula.  Students give examples of functions with 2...
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Worksheet
Curated OER

Regents Exam Questions: Quadratic Formula

For Students 9th - 12th
In this quadratic formula instructional activity, learners solve 5 multiple choice quadratic equations.  Students use the quadratic formula to find the roots or solutions of each equation.
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Lesson Plan
Virginia Department of Education

Quadratic Equations

For Teachers 9th - 12th
Review the multiple methods of solving quadratic equations through an analysis of the discriminant. Scholars use the discriminant to determine the best solution method and then solve various equations. As a challenge, learners build...
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Lesson Plan
Curated OER

Quadratic Equations with Negative Discriminate

For Teachers 9th - 11th
Solve polynomial equations of degree using different theorems and apply the zero factor theorem for unknown numbers in a quadratic equation. Also use the discriminate to find out the kind of solutions to given quadratic equations shown.
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Lesson Plan
Curated OER

Discovery Research of Quadratics

For Teachers 9th - 11th
Pupils investigate the properties behind the quadratic equation. In this algebra lesson, students identify quadratic equation in the real world. They graph the parabola and identify the vertex and intercepts.
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Worksheet
Curated OER

Solving Quadratic Equations with Complex Roots

For Students 8th - 9th
In this quadratic equations instructional activity, students solve 10 different equations that include complex roots. First, they solve for the indicated variable and express the roots of the equation in simplest form. Then, students...
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Lesson Plan
Curated OER

Quadratic Equation - Part I

For Teachers 8th - 12th
Using a graphing calculator, construct a graph and find solutions to quadratic equations. Observe additional methods of solving quadratic equations. Independently, solve solutions by using the discriminant.
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Worksheet
Curated OER

The Discriminant

For Students 9th - 12th
In this discriminant worksheet, students use the discriminant to determine the number of roots a polynomial contains. Explanations and examples are provided prior to the exercise. This two-page worksheet contains ten problems.
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Worksheet
Curated OER

Quadratic Review

For Students 10th - 11th
In this quadratic review activity, students work with an overview on how to solve and graph quadratic equations.  Twelve fully worked examples are shown.
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Worksheet
Curated OER

The Quadratic Formula

For Students 11th
In this Algebra II worksheet, 11th graders use the quadratic formula to solve quadratic equations and examine the discriminate to determine the number and type of roots a quadratic equation will have.  The two page worksheet contains...
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Worksheet
Curated OER

Topic 6.4 - The Quadratic Formula and Discriminant

For Students 9th - 11th
In this quadratic equation instructional activity, students find the exact value of the discriminant and describe the nature of the roots of each quadratic equation. They then solve the equation. There are 9 problems on this page to solve.
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Worksheet
Curated OER

Quadratic Equations

For Students 9th - 12th
For this quadratic equations worksheet, students answer 15 questions about quadratic equations.  Students complete the square, use the quadratic formula, write equations in vertex form, and solve quadratic equations by factoring.
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Lesson Plan
Ohio Department of Education

The Solution is Complex

For Teachers 9th - 12th Standards
Consider complex numbers, roots, and quadratic equations. Use the discriminate as a way to determine the nature of a quadratic's roots. Then discuss the similarities and differences between quadratics with two, one, or no real roots....
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Worksheet
Rochester Institute of Technology

Roots of Quadratic Equations

For Students 7th - 12th
A five-page worksheet packet guides young mathematicians through solving standard form quadratic equations using the quadratic formula. They can identify the radical sign, the discriminant, and see the three options for finding roots...
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Lesson Plan
EngageNY

Complex Numbers as Solutions to Equations

For Students 10th - 12th Standards
Quadratic solutions come in all shapes and sizes, so help your classes find the right one! Learners use the quadratic formula to find solutions for quadratic equations. Solutions vary from one, two, and complex. 
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Lesson Plan
Curated OER

Introduction into Quadratic Formula

For Teachers 8th - 10th
Students explore quadratic equations. Using dry erase boards, students graph solutions to quadratic equations and solve problems using the quadratic formula. They explore the quadratic formula and the use of the discriminant to...
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Worksheet
Curated OER

Quadratics and the Discriminant

For Students 9th - 11th
In this algebra worksheet, students calculate the discriminant of a quadratic equation identifying the number of real solution for each equation. They complete the square and use the quadratic function to solve equations. There are 12...