9th Grade Quadratic Equations Lesson Plan Example

Topic:Solving Quadratic Equations

Objectives & Outcomes

• Upon completion of this lesson, students will be able to solve quadratic equations using the square root property and the inverse square root property.

Materials

• Graph paper
• Pencils
• Erasers
• Quadratics worksheet (one per student)

Warm-up

• Review the concept of a quadratic equation and the fact that it can be written in the form ax^2 + bx + c, where a, b, and c are constants and a is not equal to zero.
• Ask students to solve the following quadratic equations:4x^2 + 5x - 6 = 0 and 3x^2 + 4x - 5 = 0.
• Have students share their solutions and discuss any strategies they used.

Direct Instruction

• Define the terms "quadratic equation" and "roots" and explain their relationship.
• Write the quadratic equation in the form ax^2 + bx + c and explain how to find the roots using the quadratic formula.
• Demonstrate how to solve a quadratic equation using the quadratic formula and handouts with examples.

Guided Practice

• Provide students with a worksheet or handouts with example problems involving quadratic equations.
• Have students work in pairs to solve the problems using the quadratic formula.
• Walk around the classroom to provide assistance as needed.

Independent Practice

• Provide students with a worksheet or handouts containing several problems involving quadratic equations.
• Have students work through the problems independently to solve them using the quadratic formula.

Closure

• Have students share their solutions to the problems with the class and explain their reasoning.
• Review the concepts covered in the lesson, including the different ways to solve quadratic equations and the importance of using proper algebraic techniques.

Assessment

• Observe students during the independent practice activity to see if they are using the proper algebraic techniques to solve the quadratic equations.
• Have students complete a short quiz or worksheet to assess their understanding of the concepts covered in the lesson.