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
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Mind Benders® (Grades PreK-12+)
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Building Thinking Skills® (Grades Toddler-12+)
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The Basics of Critical Thinking (Grades 4-9)
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Critical Thinking Coloring Books (Grades PreK-2)
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Red Herring Mysteries (Grades 4-12+)
- Can You Find Me? Books • Riddle Rabbit™ Software (Grades PreK-1)
- Visual Perceptual Skill Building® (Grades PreK-3)
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Dr. Funster's (Grades 2-12+)
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Practical Critical Thinking (Grades 9-12+)
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Thinking Skills & Key Concepts (Grades PreK-2)
Language Arts
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Word Roots (Grades 3-12+)
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Reading Detective® (Grades 3-12+)
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Writing Detective® (Grades 3-6)
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The Language Mechanic (Grades 4-7)
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Editor in Chief® (Grades 2-12+)
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Language Smarts™ (Grades 1-4)
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Think Analogies® Books • ThinkAnalogy™ Puzzles Software (Grades 3-12+)
- Dr. DooRiddles & Spelling DooRiddles (Grades PreK-12+)
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Sentence Diagramming (Grades 3-12+)
- Vocabulary Virtuoso (Grades 2-12+)
Mathematics
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Mathematical Reasoning™ (Grades Toddler-9)
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Balance Math™ & More! (Grades 2-12+)
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Math Analogies (Grades K-9)
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Math Detective® (Grades 3-8)
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Pattern Explorer (Grades 3-9)
- Brain Stretchers (Grades 5-12+)
- Mind Building Math (Grades K-1)
- Scratch Your Brain® (Grades 2-12+)
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Algebra Word Problems (Grades 7-12+)
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Dare to Compare: Math (Grades 4-7)
Science
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Science Detective® (Grades 3-6)
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Developing Critical Thinking through Science (Grades 1-8)
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Snailopolis (Grades K-4)
- Sciencewise (Grades 4-12+)
Social Studies
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World History Detective® (Grades 6-12+)
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U.S. History Detective® (Grades 8-12+)
- You Decide! (Grades 6-12+)
- Critical Thinking in United States History (Grades 6-12+)
Key to symbols:
- Award Winner
- Award Winner
