**Before Activity: To engage learners and collect data (10-15 minutes)**

Start the fire burning with quadratics. Let the students investigate to discover the importance of learning quadratics and allow to determine the value of the quadratic equations as it relate to real-life.

**Engage:**

Essential Questions:

Do Engineers use the Quadratic Equation? (Add additional questions, if you desire.)

**http://www.youtube.com/user/DollywoodTN?v=4nN-rdgrl1o **(If your school system does not allow you to access youtube, you may use Keepvid to download the clip prior to the lesson.)

**Preassessment Data**

1. Have students take the following pre-assessment quiz viewed from the interactive whiteboard.

**http://www.proprofs.com/quiz-school/story.php?title=quadratic-equation-quiz**

**During: The students get to EXPLORE. Students work and teacher facilitate. (15-20 minutes)**

Activity 1: Divide the class into smaller groups and ask them to brainstorm (Instructional Strategy: Think-Pair-Share) to determine if engineers use the quadratics to build roller coasters. (2 minutes)

Activity 2: Read the article Do Engineers Use the Quadratic Equation?. (Instructional Strategy: Quick Write: After reading the article, Students will write the answer to the question ....) (3 minutes)

Activity 3: Teacher will teach the quadratic formula including the definition of quadratic.

Activity 4: Students will watch video to get a clear understanding of objective. Utilize the note-taking and summarizing instructional strategy to enhance student understanding of standard. (5-10 minutes)

Video:

http://learnzillion.com/lessons/230-solve-quadratic-equations-with-real-coefficients-using-the-quadratic-formula

**After : Students to practice concept taught.**

1. Students will work in partners to practice quadratic formula. They should use the following link http://www.algebra.com/algebra/homework/quadratic/practice.epl

2. Teacher will closely observe and monitor groups as students talk, and investigate.

Close:

Student groups will research and print an example of where the quadratic formula was used on a roller coaster. This is to be shared with the class. Example: http://www.algebra.com/algebra/homework/quadratic/Quadratic_Equations.faq.question.185580.html