Solving quadratics (factoring, formula, completing the square)
Teacher tools for this standard
Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework
Teacher tools for this standard
Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework
- Lesson Plan →Objectives, pacing and practice, built from this lesson's brief.
- Guided Notes →One page your students fill in and keep.
- Exit Ticket →Three items at the end of class. No student accounts.
- Re-teach →After an exit ticket: who missed what, and what to do tomorrow.
- Homework →Assign practice; it grades itself.
A 506. Identify solutions to simple quadratic equations
A 507. Solve quadratic equations in the form (x + a)(x + b) = 0, where a and b are numbers or variables
A 509. Work with squares and square roots of numbers
A 605. Solve quadratic equations
A 601. Manipulate expressions and equations
F 401. Evaluate linear and quadratic functions, expressed in function notation, at integer values
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A 506. Identify solutions to simple quadratic equations
A 507. Solve quadratic equations in the form (x + a)(x + b) = 0, where a and b are numbers or variables
A 509. Work with squares and square roots of numbers
A 605. Solve quadratic equations
A 601. Manipulate expressions and equations
F 401. Evaluate linear and quadratic functions, expressed in function notation, at integer values
What you'll learn
- Solve a quadratic equation by rewriting it in standard form and choosing the fastest method from its form: the zero-product principle, the square-root method, completing the square, or the quadratic formula
- Apply the zero-product principle to a factored quadratic equation, producing both roots with correct signs, and explain why the product must equal zero and no other value
- Solve $x^2 = k$ and $(x+h)^2 = k$ by the square-root method, reporting both roots and handling $k<0$ and $k=0$
- Complete the square to solve a quadratic, including when $a \neq 1$ and when $b$ is odd
- Apply the quadratic formula correctly, including when $a$ is negative and when the roots are irrational
Slides
Step through the lesson, or watch it as a narrated video
Slides
In development
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