Title: (Pear Deck) Discovering the Equation of a Circle Using Distance Formula
Course: HBUHSD Geometry Resource Course > Section: Unit 8: Circles

Expected time of Completion: 10 minute

This is an introductory presentation to developing the equation of a circle using the distance formula.  Students will demonstrate their understanding of the definition of a circle and use the concept of radii to begin the steps necessary towards deriving the equation.  Through formative assessment, the teacher will guide the development of this process.

Teacher Instructions:  Follow this link to download the presentation:  https://drive.google.com/open?id=0ByVvFKcvXuh8LU5LYjlYVHdwOGM.  Go to file and make a copy of this presentation.  Start it up on your projector before the start of class.  Have students log on to a web browser using their personal electronic device (chromebook, iPad, smart phone, etc.) and go to the website www.peardeck.com/join.  Have them enter the on screen code and begin the presentation when ready.  At each question slide, allow time for the students to respond to the questions.  When you are ready to go over their responses, lock their submissions and display their responses.  Discuss and re mediate as necessary.  At the conclusion of the presentation, students will be ready to derive the equation using any medium the instructor chooses.