Critical Thinking & Logic

Logic CurriculumLogic Resources

Dad said it all the time: "Use your head!" It's generic advice, but it applies to every situation. Whether you've heard a riveting sermon, voted for the next president, or need to fix the kitchen sink, thinking about things is the best way to live successfully and with a minimum of bad decisions.

There's more to clear thinking than down home wisdom and "common sense," however. Those are important, but there's something even more fundamental that too often is overlooked: Logic. The fact that so many people misuse it shouldn't deter us from studying or understanding the crowning subject in Classical education, or from using it on a daily basis.

The thing about logic is that, if you begin properly and follow its very intuitive guidelines, it's so logical. At the same time, it's incredibly easy to get off track, to make mistakes, to commit fallacies. The more you know about logic and the more you practice it, the fewer errors you make and the clearer your thinking becomes.

Logic is the study of the principles of good reasoning: putting true statements together to form true conclusions, or taking apart bad arguments to demonstrate poor thinking. Systematic study of logic has become rare, but as Christians we hold it to be a vital element of a good education.

Interpreting biblical doctrine, discerning good from bad, applying the principles of Christianity to our daily lives—all these require logic (and the power of the Holy Spirit, of course). Put more succinctly, Christ called us to imitate Him, and He was eminently logical. Often, His critiques of the Pharisees were logic-based interpretations of the very Scriptures they stubbornly misinterpreted.

In our own day, men like N.T. Wright, Tim Keller, and Peter Kreeft have dedicated themselves to doggedly defending the faith through reason, constructing and dismantling arguments in light of God's Word. They're heirs to a long and respected tradition of Christians engaging society on every level, a tradition seemingly falling into disrepute in these postmodern times.

Our prayer is for that tradition to regain its status, not only in the world at large, but specifically among Christians themselves. The idea that the Holy Spirit will give us the right words to say when the time comes to defend our faith is only partly true; Christ expects us to strive to follow Him. The Christian life is a succession of battles in a larger war, and to think we can rush into the fighting (or simply stroll through the chaos) without proper training and armament is foolishness.

Properly studied and used, logic remains one of the Christian's most valuable weapons in the fight against secularism and the Devil, who only uses logic destructively. We teach our children good critical thinking intentionally, understanding that we aren't raising mere scholars, we're raising the next generation of Kingdom warriors to fight the powers of darkness in Jesus' name.

Review by C. Hollis Crossman
C. Hollis Crossman used to be a child. Now he's a husband and father who loves church, good food, and weird stuff. He might be a mythical creature, but he's definitely not a centaur. Read more of his reviews here.
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Analogies 2
by Arthur Liebman
from Educators Publishing Service
for 9th-10th grade
in EPS Analogies (Location: LOG-EPS)
$7.00 (1 in stock)
Art of Argument - DVD Set
by Aaron Larsen & Joelle Hodge
from Classical Academic Press
for 7th-9th grade
in Classical Academic Press Logic (Location: LOG-CAP)
$85.95 $49.00 (1 in stock)
Art of Argument - Student Text
by Aaron Larsen & Joelle Hodge
2nd edition from Classical Academic Press
for 7th-9th grade
in Classical Academic Press Logic (Location: LOG-CAP)
$28.95 $20.00 (1 in stock)
Basics of Critical Thinking
by Michael O. Baker
from Critical Thinking Books
for 4th-9th grade
in Critical Thinking Series (Location: LOG-CTS)
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Building Thinking Skills Book 2 (old)
by Sandra Parks & Howard Black
2nd edition from Critical Thinking Books
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Cathy Duffy's 100 Top Picks
in Old Edition Logic (Location: ZCLE-LOG)
$21.00 (1 in stock)
Building Thinking Skills Book 2 (old)
by Sandra Parks & Howard Black
2nd edition from Critical Thinking Books
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Cathy Duffy's 100 Top Picks
in Old Edition Logic (Location: ZCLE-LOG)
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Building Thinking Skills Book 3 Verbal
by Sandra Parks & Howard Black
from Critical Thinking Books
for 7th-Adult
Cathy Duffy's 100 Top Picks
in Building Thinking Skills (Location: LOG-BTS)
$39.99 $25.00 (1 in stock)
Classical Rhetoric for the Modern Student
by Edward P. J. Corbett
2nd Edition, 6th Printing, 1960 from Oxford University
for 9th-Adult
in Vintage Nonfiction (Location: VIN-NFIC)
$39.00 (1 in stock)
Classical Rhetoric with Aristotle w/ Answer Key (old)
by Martin Cothran
from Memoria Press
for 9th-12th grade
in Clearance: English & Language Arts (Location: ZCLE-LAN)
$18.00 (1 in stock)
Critical & Creative Thinking Activities Grade 1
from Evan-Moor Educational Publishers
for 1st grade
in Logic Resources (Location: LOG-RES)
$10.00 (1 in stock)
Critical Thinking Detective Book 1
Critical Thinking Detective
from Critical Thinking Books
in Critical Thinking Series (Location: LOG-CTS)
$9.99 $7.00 (1 in stock)
Critical Thinking Detective Book 2
Critical Thinking Detective
by Michael Baker
from Critical Thinking Books
in Critical Thinking Series (Location: LOG-CTS)
$9.99 $7.00 (1 in stock)
Crypto Mind Benders: Classic Jokes
by Nile Duppstadt II
from Critical Thinking Books
for 3rd-12th grade
in Mind Benders (Location: LOG-CTMB)
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Crypto Mind Benders: Famous Quotations
by Nile Duppstadt II
from Critical Thinking Books
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in Mind Benders (Location: LOG-CTMB)
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Daily Mind Builders - Language Arts
by Jennifer Gottstein
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Daily Mind Builders - Science
by Jennifer Gottstein
from Critical Thinking Books
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in Critical Thinking Series (Location: LOG-CTS)
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Daily Mind Builders - Social Studies
by Jennifer Gottstein
from Critical Thinking Books
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in Critical Thinking Series (Location: LOG-CTS)
$16.99 $10.00 (1 in stock)
Dr. Dooriddles A1
by John H. Doolittle
from Critical Thinking Books
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in Dr. Funster & Dr. Dooriddles (Location: LOG-DR)
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Dr. Dooriddles A2
by John H. Doolittle
from Critical Thinking Books
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in Dr. Funster & Dr. Dooriddles (Location: LOG-DR)
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Dr. Dooriddles B2
by John H. Doolittle
from Critical Thinking Books
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Dr. Funster's Think-A-Minutes A2
from Critical Thinking Books
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Dr. Funster's Think-A-Minutes B1
from Critical Thinking Books
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in Dr. Funster & Dr. Dooriddles (Location: LOG-DR)
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Dr. Funster's Think-A-Minutes B2
from Critical Thinking Books
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in Dr. Funster & Dr. Dooriddles (Location: LOG-DR)
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Dr. Funster's Word Benders A1
by Sandra Parks & Howard Black
from Critical Thinking Books
for 3rd-4th grade
in Dr. Funster & Dr. Dooriddles (Location: LOG-DR)
$3.50 (2 in stock)
Dr. Funster's Word Benders B1
by Howard Black, Sandra Parks
from Critical Thinking Books
for 5th-6th grade
in Dr. Funster & Dr. Dooriddles (Location: LOG-DR)
$3.50 (1 in stock)
Fallacy Detective
by Hans & Nathaniel Bluedorn
3rd edition from Christian Logic
for 6th-10th grade
in Old Edition Logic (Location: ZCLE-LOG)
$12.00 (1 in stock)
Fallacy Detective: Workbook Edition
by Hans & Nathaniel Bluedorn
Workbook from Christian Logic
for 6th-10th grade
in Christian Logic (Location: LOG-CHR)
$32.00 $20.00 (3 in stock)
Hands-On Thinking Skills
by Warren Hill & Ronald Edwards
from Critical Thinking Books
for Preschool-1st grade
Cathy Duffy's 100 Top Picks
in Building Thinking Skills (Location: LOG-BTS)
$15.00 (1 in stock)
Inference Jones - Level 1
by Robert E. Owen
from Critical Thinking Books
for 5th-6th grade
in Logic Resources (Location: LOG-RES)
$11.99 $7.50 (1 in stock)
Intermediate Logic - DVD (with Brian Kohl)
by Instructor: Brian Kohl
3rd edition from Canon Press
for 9th-12th grade
in Introductory & Intermediate Logic (Location: LOG-CAN)
$75.00 $50.00 (2 in stock)
Intermediate Logic - Teacher Edition
by James Nance & Douglas Wilson
3rd edition from Canon Press
for 7th-12th grade
in Introductory & Intermediate Logic (Location: LOG-CAN)
$34.99 $22.00 (4 in stock)
Intermediate Logic - Test & Quiz Packet
by James Nance & Douglas Wilson
3rd edition from Canon Press
for 7th-12th grade
in Introductory & Intermediate Logic (Location: LOG-CAN)
$11.99 $7.00 (4 in stock)
Introductory Logic - DVD (with Brian Kohl)
by Instructor: Brian Kohl
5th edition from Logos School
for 8th-10th grade
in Introductory & Intermediate Logic (Location: LOG-CAN)
$75.00 $50.00 (2 in stock)
Introductory Logic - Student Text
by James Nance & Douglas Wilson
5th edition from Canon Press
for 7th-12th grade
in Introductory & Intermediate Logic (Location: LOG-CAN)
$31.99 $20.00 (4 in stock)
Introductory Logic - Teacher Edition
by James Nance & Douglas Wilson
5th edition from Canon Press
for 7th-12th grade
in Introductory & Intermediate Logic (Location: LOG-CAN)
$34.99 $24.00 (4 in stock)
Introductory Logic - Test & Quiz Packet
by James Nance & Douglas Wilson
5th edition from Canon Press
for 7th-12th grade
in Introductory & Intermediate Logic (Location: LOG-CAN)
$11.99 $7.00 (2 in stock)
James Madison Critical Thinking Course
by William O'Meara & Daniel Flage
from Critical Thinking Books
for 9th-Adult
in Logic Resources (Location: LOG-RES)
$39.99 $25.00 (1 in stock)
James Madison Critical Thinking Course - Instruction/Answer Guide
by William O'Meara & Daniel Flage
from Critical Thinking Books
for 9th-Adult
in Logic Resources (Location: LOG-RES)
$10.99 $6.00 (3 in stock)
Language and Thinking for Young Children
by Ruth Beechick
from Mott Media
for Preschool- 3rd Grade
$3.00 (1 in stock)
Mind Benders A4 (old)
by Anita Harnadek
from Critical Thinking Books
for 2nd-Adult
Cathy Duffy's 100 Top Picks
in Old Edition Logic (Location: ZCLE-LOG)
$3.00 (1 in stock)
Mind Benders B1 (old)
by Anita Harnadek
from Critical Thinking Books
for 7th-Adult
Cathy Duffy's 100 Top Picks
in Old Edition Logic (Location: ZCLE-LOG)
$3.00 (1 in stock)
Mind Benders Book 5
by Anita Harnadek
from Critical Thinking Books
for 6th-Adult
Cathy Duffy's 100 Top Picks
in Mind Benders (Location: LOG-CTMB)
$10.99 $7.50 (1 in stock)
Mind Benders Level 2
by Michael Baker
from Critical Thinking Books
for 1st-2nd grade
Cathy Duffy's 100 Top Picks
in Mind Benders (Location: LOG-CTMB)
$10.99 $7.50 (1 in stock)
Mind Benders Verbal
by Anita Harnadek
from Critical Thinking Books
for Kindergarten-2nd grade
Cathy Duffy's 100 Top Picks
in Mind Benders (Location: LOG-CTMB)
$9.99 $7.00 (2 in stock)
Nonsense: Red Herrings, Straw Men and Sacred Cows
by Robert J. Gula
from Axios
for 9th-Adult
in Logic Resources (Location: LOG-RES)
$7.00 (1 in stock)
Primary Analogies 2 - Teacher Guide
from Educators Publishing Service
for 2nd grade
in EPS Analogies (Location: LOG-EPS)
$4.00 (1 in stock)
Private Eye
by Kerry Ruef
Revised
for 1st-6th grade
in Logic Resources (Location: LOG-RES)
$8.50 (1 in stock)
Red Herring Mysteries Level 1
by Thomas Camilli
from Critical Thinking Books
for 4th-6th grade
in Logic Resources (Location: LOG-RES)
$14.99 $10.00 (2 in stock)
Red Herring Mysteries Level 2
by Thomas Camilli
from Critical Thinking Books
for 7th-12th grade
in Logic Resources (Location: LOG-RES)
$14.99 $10.00 (1 in stock)
Rhetoric Companion
by N.D. Wilson & Douglas Wilson
from Canon Press
in Speech & Debate (Location: SPEECH)
$24.00 $17.50 (2 in stock)
Rhetoric Companion - Answer Key
by N.D. Wilson & Douglas Wilson
from Canon Press
in Speech & Debate (Location: SPEECH)
$8.00 $5.50 (1 in stock)
Robert's Rules of Order Newly Revised
by Gen. Henry M. Robert
10th Edition from Perseus Books Group
for 11th-Adult
in Speech & Debate (Location: SPEECH)
$5.00 (1 in stock)
Shapes & Logic 1 Wrap-Up Keys
from Learning Wrap-Ups
for 3rd-6th grade
in Logic Resources (Location: LOG-RES)
$5.00 (1 in stock)
Think Analogies B1
by Cheryl Block
from Critical Thinking Books
for 3rd-5th grade
in Logic Resources (Location: LOG-RES)
$12.99 $7.50 (1 in stock)
Think-a-Grams A1
by Evelyne M. Graham
from Critical Thinking Books
for 4th-6th grade
in Logic Resources (Location: LOG-RES)
$10.99 $7.00 (1 in stock)
Thinker Doodles Half 'n' Half Animals A1
from Critical Thinking Books
for Kindergarten-1st grade
in Logic Resources (Location: LOG-RES)
$2.50 (1 in stock)
Thinking Through Analogies
by Bonnie Lou Risby, illustrated by Dean and Pat Crawford
from Prufrock Press
for 3rd-6th grade
in Logic Resources (Location: LOG-RES)
$8.00 (1 in stock)
Thinking Toolbox: Workbook Edition
by Nathaniel & Hans Bluedorn
Workbook Edition from Christian Logic
for 6th-10th grade
in Christian Logic (Location: LOG-CHR)
$32.00 $20.00 (1 in stock)
Traditional Logic I (really old)
by Martin Cothran
from Memoria Press
for 7th-12th grade
in Old Edition Logic (Location: ZCLE-LOG)
$9.00 (1 in stock)
Traditional Logic I - Quizzes & Final Exam
by Martin Cothran
2nd edition from Memoria Press
for 7th-12th grade
in Memoria Press Logic & Rhetoric (Location: LOG-MP)
$6.20 $3.50 (2 in stock)
Traditional Logic II (old)
by Martin Cothran
from Memoria Press
for 8th-12th grade
in Old Edition Logic (Location: ZCLE-LOG)
$12.00 $10.00 (1 in stock)
Trivium Tables: Logic
from Classical Conversations
for 5th-8th grade
in Classical Conversations (Location: CUR-CC)
$14.40 $9.00 (3 in stock)
Trivium Tables: Rhetoric
from Classical Conversations
for 7th-12th grade
in Classical Conversations (Location: CUR-CC)
$14.40 $9.00 (1 in stock)
Wakeful Words
by Jen Greenholt
from Classical Conversations
for 6th-12th grade
in Words Aptly Spoken (Location: LITCUR-WAS)
$17.80 $12.50 (2 in stock)
What Would You Do? Book 1
by Michael O. Baker
from Critical Thinking Books
for 2nd-5th grade
in Logic Resources (Location: LOG-RES)
$6.00 (1 in stock)
Writing & Rhetoric Book 5 - Teacher Edition (old)
by Paul Kortepeter
1st edition from Classical Academic Press
for 5th-6th grade
$26.95 $8.00 (1 in stock)