The Critical Thinking Co.™ - Better Grades and Higher Test Scores

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Algebra I & II
Gr. 7-12+
Algebra Magic Tricks
Gr. 2-12+
Algebra Word Problems
Gr. 7-12+
Balance Benders
Gr. 2-12+
Balance Math & More!
Gr. 2-12+
Basics of Critical Thinking
Gr. 4-7
Brain Stretchers
Gr. 5-12+
Building Thinking Skills
Gr. Toddler-12+
Building Writing Skills
Gr. 3-7
Bundles - Critical Thinking
Gr. PreK-9
Bundles - Language Arts
Gr. K-8
Bundles - Mathematics
Gr. PreK-9
Bundles - Multi-Subject Curriculum
Gr. PreK-12+
Bundles - Test Prep
Gr. Toddler-12+
Can You Find Me?
Gr. PreK-1
Complete the Picture Math
Gr. 1-3
Cornell Critical Thinking Tests
Gr. 5-12+
Cranium Crackers
Gr. 3-12+
Creative Problem Solving
Gr. PreK-2
Critical Thinking Activities to Improve Writing
Gr. 4-12+
Critical Thinking Coloring
Gr. PreK-2
Critical Thinking Detective
Gr. 3-12+
Critical Thinking Tests
Gr. PreK-6
Critical Thinking for Reading Comprehension
Gr. 1-5
Critical Thinking in United States History
Gr. 6-12+
CrossNumber Math Puzzles
Gr. 4-10
Crypt-O-Words
Gr. 2-7
Crypto Mind Benders
Gr. 3-12+
Daily Mind Builders
Gr. 5-12+
Dare to Compare Math
Gr. 2-7
Developing Critical Thinking through Science
Gr. 1-8
Dr. DooRiddles
Gr. PreK-12+
Dr. Funster's
Gr. 2-12+
Editor in Chief
Gr. 2-12+
Fun-Time Phonics!
Gr. PreK-2
Half 'n Half Animals
Gr. K-4
Hands-On Thinking Skills
Gr. K-1
Inference Jones
Gr. 1-6
James Madison
Gr. 10-12+
Jumbles
Gr. 3-5
Language Mechanic
Gr. 4-7
Language Smarts
Gr. 1-4
Mastering Logic & Math Problem Solving
Gr. 6-9
Math Analogies
Gr. K-9
Math Detective
Gr. 3-8
Math Games
Gr. 3-8
Math Mind Benders
Gr. 5-12+
Math Ties
Gr. 4-8
Math Word Problems
Gr. 4-10
Mathematical Reasoning
Gr. Toddler-11
Middle School Science
Gr. 6-8
Mind Benders
Gr. PreK-12+
Mind Building Math
Gr. K-1
Mind Building Reading
Gr. K-1
Novel Thinking
Gr. 3-6
OLSAT® Test Prep
Gr. PreK-K
Organizing Thinking
Gr. 2-8
Pattern Explorer
Gr. 3-9
Practical Critical Thinking
Gr. 8-12+
Punctuation Puzzler
Gr. 3-8
Reading Detective
Gr. 3-12+
Red Herring Mysteries
Gr. 4-12+
Red Herrings Science Mysteries
Gr. 4-9
Science Detective
Gr. 3-6
Science Mind Benders
Gr. PreK-3
Science Vocabulary Crossword Puzzles
Gr. 4-6
Sciencewise
Gr. 4-12+
Scratch Your Brain
Gr. 2-12+
Sentence Diagramming
Gr. 3-12+
Smarty Pants Puzzles
Gr. 3-12+
Snailopolis
Gr. K-4
Something's Fishy at Lake Iwannafisha
Gr. 5-9
Teaching Technology
Gr. 3-12+
Tell Me a Story
Gr. PreK-1
Think Analogies
Gr. 3-12+
Think and Write
Gr. 3-8
Think-A-Grams
Gr. 4-12+
Thinking About Time
Gr. 3-6
Thinking Connections
Gr. 4-12+
Thinking Directionally
Gr. 2-6
Thinking Skills & Key Concepts
Gr. PreK-2
Thinking Skills for Tests
Gr. PreK-5
U.S. History Detective
Gr. 8-12+
Understanding Fractions
Gr. 2-6
Visual Perceptual Skill Building
Gr. PreK-3
Vocabulary Riddles
Gr. 4-8
Vocabulary Smarts
Gr. 2-5
Vocabulary Virtuoso
Gr. 2-12+
What Would You Do?
Gr. 2-12+
Who Is This Kid? Colleges Want to Know!
Gr. 9-12+
Word Explorer
Gr. 6-8
Word Roots
Gr. 3-12+
World History Detective
Gr. 6-12+
Writing Detective
Gr. 3-6
You Decide!
Gr. 6-12+

200+ Award-Winning Educational Textbooks, Activity Books, & Printable eBooks!

Books That Teach Critical Thinking • Reading • Writing • Math • Science • Social Studies

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Preschool Academics

Struggling Students

Special Needs

Top of the Class!

Gifted Education

Homeschooling