Park City Mathematics Institute
Lesson Study
Project Abstract
Two Roots and a Why
Grade Level: High School
Subject: Algebra 1
Authors: Kristen Bies, Mark Dittmer, Cesar Ebonia, Kate Harney, Oyinka Bruce, Mary Pilgrim, Kayleigh Rose, Amy TerEick
The purpose of our lesson study was to collaboratively craft, teach, and revise a lesson for high school students learning Algebra 1.We met an average of eight hours per week for three weeks. The lesson was piloted to 20 teacher volunteers from the Park City Mathematics Institute Teacher Leadership Program which followed with a feedback session for revisions. The second time, the lesson was taught to 25 high school students attending the Winter Sports School in Park City, Utah.
The major objective of our lesson was for students to understand factoring quadratic trinomials and solving quadratic equations. The lesson starts with students demonstrating their previous knowledge of solving equations. Students discover and practice factoring rules using the X Factor graphic organizer activity. Connecting the X factor to the area model, students will apply factoring rules to quadratic expressions. Finally, students solve quadratic equations using the zero product property. Students practice skills from the lesson with a "Two Truths and a Lie" final activity. Emphasis on making connections throughout the lesson with precise language working well as individually and collaboratively to develop thoughtful reasoning.
download zipped folder [generic login required]

Back to Index

PCMI@MathForum Home || IAS/PCMI Home

© 2001 - 2018 Park City Mathematics Institute
IAS/Park City Mathematics Institute is an outreach program of the Institute for Advanced Study, 1 Einstein Drive, Princeton, NJ 08540
Send questions or comments to: Suzanne Alejandre and Jim King

With program support provided by Math for America

This material is based upon work supported by the National Science Foundation under DMS-0940733 and DMS-1441467. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.