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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. 4-9 -
Brain Stretchers
Gr. 5-12+ -
Building Thinking Skills
Gr. Toddler-12+ -
Building Writing Skills
Gr. 3-7 -
Bundles - Curriculum
Gr. Toddler-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. 8-12+ -
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. 9-12+ -
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+
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Top Selling Products
Below is a list of our most popular series titles listed by subject. Each title comes highly recommended by our customers, and we guarantee that you and your child will benefit from them as well.
Critical Thinking
- Mind Benders® (Grades PreK-12+)
- Building Thinking Skills® (Grades Toddler-12+)
- Balance Benders™ (Grades 2-12+)
- The Basics of Critical Thinking (Grades 4-9)
- Critical Thinking Detective™ (Grades 3-12+)
- Critical Thinking Coloring Books (Grades PreK-2)
- Red Herring Mysteries (Grades 4-12+)
- Can You Find Me? Books • Riddle Rabbit™ Software (Grades PreK-1)
- Visual Perceptual Skill Building® (Grades PreK-3)
- Dr. Funster's (Grades 2-12+)
- Practical Critical Thinking (Grades 9-12+)
- Thinking Skills & Key Concepts (Grades PreK-2)
- Creative Problem Solving (Grades PreK-2)
Language Arts
- Word Roots (Grades 3-12+)
- Reading Detective® (Grades 3-12+)
- Editor in Chief® (Grades 2-12+)
- Inference Jones (Grades 3-6)
- Writing Detective® (Grades 3-6)
- The Language Mechanic (Grades 4-7)
- Language Smarts™ (Grades 1-4)
- Think Analogies® Books • ThinkAnalogy™ Puzzles Software (Grades 3-12+)
- Sentence Diagramming (Grades 3-12+)
- Dr. DooRiddles & Spelling DooRiddles (Grades PreK-12+)
- Vocabulary Virtuoso (Grades 2-12+)
- Crypt-O-Words (Grades 2-7)
Mathematics
- Mathematical Reasoning™ (Grades Toddler-9)
- Understanding Fractions, Percent, and Decimals (Grades 2-6)
- Balance Benders™ (Grades 2-12+)
- Balance Math™ & More! (Grades 2-12+)
- Math Analogies (Grades K-9)
- Math Detective® (Grades 3-8)
- Pattern Explorer (Grades 3-9)
- Crypto Mind Benders® (Grades 3-12+)
- Brain Stretchers (Grades 5-12+)
- Mind Building Math (Grades K-1)
- Dare to Compare: Math (Grades 4-7)
- Algebra Word Problems (Grades 7-12+)
- Scratch Your Brain® (Grades 2-12+)
Science
- Science Detective® (Grades 3-6)
- Developing Critical Thinking through Science (Grades 1-8)
- Snailopolis (Grades K-4)
- Sciencewise (Grades 4-12+)
Social Studies
- World History Detective® (Grades 6-12+)
- U.S. History Detective® (Grades 8-12+)
- You Decide! (Grades 6-12+)
- Critical Thinking in United States History (Grades 6-12+)
