Download Evidence Scavenger Hunt

Title
Completing the Square
Skill
Using Text as Evidence to Support an Argument
EBA Activity
Evidence Scavenger Hunt
Claims
You may use the following claims for this activity:
 The problem is solved correctly.
 The problem is solved incorrectly.
Procedure
1. Instruct students to look at the worked examples, first checking for the
correct solution and then identifying the error that occurred in the
steps.
2. Proceed with a standard Evidence Scavenger Hunt activity.
Timing/Pacing



This occurs after the beginning of the unit. Prerequisite knowledge
includes finding the roots of a quadratic function by graphing and
factoring, taking square roots, and solving multi-step equations. After
this lesson, students will learn how to find the roots of a quadratic
function with the quadratic formula.
This activity takes 25 minutes.
This activity occurs after review of the procedure for completing the
square and individual practice. It continues until the end of the lesson.
Notes
Errors in the worked examples could include:
 Forgetting to make sure that the coefficient of the quadratic term x2 is 1
 Algebraic errors
 Writing complex numbers incorrectly for an equation with no real
solution
 Forgetting to add (b/2)2 to the other side of the equation
 Forgetting + or – when taking the square root of both sides
 Forgetting to move the constant c to the other side of the equation
before completing the square
 Errors with fractional coefficients
Follow Up
Activities
To add an oral component, this activity could be followed by a Using
Evidence Soapbox.
Text
Standard Algebra 2 Text, worked examples (some solved correctly, some
solved incorrectly).
Boston Debate League © 2012
Name:_____________________________________ Class: ________________ Date:______________
Evidence Scavenger Hunt:
Students will race in pairs to both find textual evidence and to explain how the text SUPPORTS OR
DISPROVES the claim. Every team that correctly answers that statement will receive 1 point and the first
group to answer in each round will receive 2 points. The best analysis will receive 3 points.
Claim
SUPPORT
DISPROVE
SUPPORT
DISPROVE
SUPPORT
DISPROVE
“QUOTE”- page/line number
Boston Debate League © 2012
Warrant
Analysis – How does the quote support
or disprove the claim
Claim
SUPPORT
DISPROVE
SUPPORT
DISPROVE
SUPPORT
DISPROVE
“QUOTE”- page/line number
Boston Debate League © 2012
Warrant
Analysis – How does the quote support
or disprove the claim
Facilitator Claims
Example Problem
Boston Debate League © 2012
Claim

The problem is solved correctly.

The problem is solved incorrectly.

The problem is solved correctly.

The problem is solved incorrectly.

The problem is solved correctly.

The problem is solved incorrectly.