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The Critical Thinking Company

The Critical Thinking Company

Keep your children performing
at the top of their abilities!

We offer all books, software, and DVDs published by The Critical Thinking Company. These products help children learn while having fun. Our award-winning Critical Thinking educational products are fun, thought provoking, and highly interactive. Our Critical Thinking products develop creative thinking and cognitive skills - they build your child's brain.

These Critical Thinking products develop critical thinking and reasoning skills and improve standards-based learning for children in grades PreK-12. We offer higher level thinking and brain building products in Reading, Language Arts, Social Studies, Science, Math, Critical Thinking, Reasoning, and Logic.

We help students of all abilities achieve better grades and higher test scores with highly effective lessons and activities that sharpen the mind as they teach your child to think and reason.


Simply click on the product name or image to learn more...

Academic Challenge Cup
5000 Essential Knowledge Questions Across the Curriculum
Grades: 6th - 12th+
Teaches and tests essential knowledge in literature, language, math, science, history, geography, and the arts necessary for superior achievement in school and beyond. Children analyze and answer beginning, intermediate, and advanced scholastic trivia questions. As they check their answers, children are provided with more details about each answer for additional learning and reinforcement.
Academic Challenge Cup
Algebra Word Problems
Develops a solid foundation of algebraic thinking.
Grades: 7th - 12th+
Algebra Word Problems uses process skills and the gradual introduction of more challenging concepts to give students the confidence and ability to master algebra word problems.
Algebra I Word Problems
Algebra II Word Problems
Algebra Word Problems 2-Book Set
Can You Find Me? Riddles Series
Building Thinking Skills with Riddles - Associative Reasoning
Grades: PreK - 1st
Develops skills in reading readiness, science, math, and social studies using five basic thinking skills: similarities and differences, sequences, classifications, analogies, and logic. Content is based on state standards. 112 full-color pages per book.
Can You Find Me? PreK
Can You Find Me? K-1
Complete the Picture Math
Answer the math word problems and complete and color the pictures!
Grades: 1st - 3rd
Develops a wide variety of math, reading, visual, and spatial reasoning skills. Children solve an engaging word problem that focuses on reading comprehension and mathematical reasoning before completing and coloring an animal picture.
Ideal to motivate your child to improve math skills. These quick, boredom-busting activities can be used in the classroom, after school, at home, and on trips to stimulate developing minds.
Complete the Picture Math Book 1
Complete the Picture Math Book 2
Complete the Picture Math Book 3
Critical Thinking Series
Problem Solving, Reasoning, Logic, and Arguments
Grades: 7th - 12th

Teaches students to think logically. Students learn to identify valid and invalid claimsand aguments, sufficient and insufficient efidence, fact and opinion, generalizations, emotional arguments, inferences, deductions, and more. Instruction/Answer guides sold separately.
Recommended by The Well Trained Mind
Critical Thinking Book One
Critical Thinking Book One Instruction/Answer Guide
Critical Thinking Book Two
Critical Thinking Book Two Instruction/Answer Guide
Critical Thinking 4-Book Set
Critical Thinking in United States History
Grades: 6th - 12th+
Makes history fresh, relevant, and real! These books-on-cd use fascinating original source documents and discussion-based critical thinking methods to help children evaluate conflicting perspectives of historical events. Each Instruction/Answer Guide includes a course-end test and suggested solutions.
Printed Books and Books-on-CD available. Printable PDF includes Instruction/Answer Guides and Student Text.
Recommended by The Well-Trained Mind.
Colonies to Constitution Books-on-CD
New Republic to Civil War Books-on-CD
Reconstruction to Progressivism Books-on-CD
Spanish-American War to Vietnam War Books-on-CD
New Republic to Civil War Student Book
New Republic to Civil War - Instruction/Answer Guide
Reconstruction to Progressivism Student Book
Reconstruction to Progressivism - Instruction/Answer Guide
Spanish-American War to Vietnam War Student Book
Spanish-American War to Vietnam War - Instruction/Answer Guide
Critical Thinking in United States History 4-Books-on-CD Set
Developing Critical Thinking through Science Series
Hands-On Physical Science Activities
Grades: 1st - 8th
Standards-based, hands-on activities help students learn physical science principles and the scientific method of investigation. Zero-budget activities use supplies found in the classroom or home.
Developing Critical Thinking through Science Book 1
Developing Critical Thinking through Science Book 2
Dr. DooRiddles & Spelling DooRiddles
A fun way to strengthen students' spelling, vocabulary, and reading!
Grades PreK - 12th

Develops students' fluency and understanding of word meanings and associations as it improves their spelling vocabulary, reading, and problem-solving skills. Students carefully read through clues in each riddle, analyzing connections within and between clues to figure out what is being described. Solving the riddles requires students to evaluate homonyms, synonyms, homophones, prefixes, roots, and suffixes in order to deduce and spell whole and partial word answers.
Dr. DooRiddles 5-Book Set
Dr. DooRiddles 6-Book Set
Dr. DooRiddles 8-Book Set
Dr. DooRiddles A1
Dr. DooRiddles A2
Dr. DooRiddles A3
Spelling DooRiddles A1
Dr. DooRiddles B1
Dr. DooRiddles B2
Spelling DooRiddles B1
Dr. DooRiddles C1
Dr. Funster's Critical Thinking Books and Software
Quick, Fun Thinking Activities
Grades: 2nd - 8th

A collection of our most popular quick, fun thinking puzzles and games develop a variety of critical and creative thinking skills. Activities include language development, math, writing, visual, spatial, and perceptual skills.
Think-A-Minutes Series
Creative Thinking Puzzlers Series
Visual Mind Benders Books and Software
Get Me Out of Here Software Series
Helps Students Organize Thinking and Writing
Grades: 4th - 12th

Get Me Out of Here! improves reading comprehension, writing, mental organization, planning ahead, attention to detail, mapping, and visual-spatial sense.
California Instructional Technology Award
Get Me Out of Here A1 Software
Get Me Out of Here B1 Software
Get Me Out of Here Software 2-CD Set
Language Smarts (Core Curriculum)
Escape from boring language arts drill!
(Core Curriculum)
Grades: 1st - 2nd
These fun, mind-building books teach standards-based language arts and develop critical thinking skills. Empower your child's mind as vocabulary, grammar, punctuation, reading and writing skills improve.
Language Smarts Level B (Grade 1) - Color
Language Smarts Level B (Grade 1) - Black & White (Reproducible)
Language Smarts Level C (Grade 2) - Color
Language Smarts Level C (Grade 2) - Black & White (Reproducible)
Language Smarts Book D (Color) - Grade 3
Learning on Purpose
Teaches students to overcome study challenges and become successful learners.
Grades: 7 - 12+
A self-management approach to study skills, this book develops methods of effective organization, time management, comprehension and memory skills, and test-taking strategies.
"Recommended!" - The Well Trained Mind
Learning on Purpose
Math Analogies
Grades: K - 5
Understanding analogies and the ability to reason analogically (reasoning used to identify, evaluate, and solve an analogy) are important problem-solving skills. Problem-solving is an essential part of mathematical development. Analogies teach children to break problems down into their component parts, making it easier to recognize familiar formats that enable students to produce solutions.
Math Analogies Beginning
Math Analogies Book 1
Math Analogies Book 2
Math Detective Series
Higher Order Thinking Standards-Based Math
Grades: 3rd - 8th
Engaging story problems use topic and skills drawn from national math standards. Prepare students for more advanced math courses and assessments that measure reasoning, reading comprehension, and writing in math.
Available in Books and Software.
Math Detective Beginning
Math Detective Beginning Software
Math Detective A1
Math Detective A1 Software
Math Detective B1
Math Detective B1 Software
Math Detective 3-Book Set
Math Detective Software 3-CD Set
Mathematical Reasoning Through Verbal Analysis (Core Curriculum)
Grades: PreK - 8th
Bridges the gap between computation and mathematical reasoning for higher grades and top test scores. Highly effective activities take students far beyond drill-and-practice by using step-by-step, discussion-based problem solving.
Beginning Mathematical Reasoning (Ages 3-4)
Mathematical Reasoning Beginning 1 (Age 3)
Mathematical Reasoning Beginning 2 (Age 4)
Mathematical Reasoning Level A (Grade K) - Color
Mathematical Reasoning Level A (Grade K) - Black & White
Mathematical Reasoning Level B (Grade 1) - Color
Mathematical Reasoning Level B (Grade 1) - Black & White
Mathematical Reasoning Level C (Grade 2) - Color
Mathematical Reasoning Level C (Grade 2) - Black & White
Mathematical Reasoning Level D (Grade 3) - Color
Mathematical Reasoning Level E (Grade 4) - Color
Mathematical Reasoning through Verbal Analysis Book 2 (Grades 4-8)
Mathematical Reasoning Book 2 Instruction/Answer Guide
Math Word Problems
Turns your child into a super math word problem solver!
Whole Numbers & Fractions • Decimals & Percents • Mixed Concepts: Whole Numbers–Percents
Grades: 4 - 10
Helps your child conquer the “dreaded” math word problem by teaching them how and when to apply the math operations they know to real-life situations. Developmentally sequenced and arranged. Each problem requires its own thinking/problem solving approach rather than applying the same solution process to entire groups of problems.
Math Word Problems Level A
Math Word Problems Level B
Math Word Problems Level C
Math Word Problems 3-Book Set
Memory Challenge
Improve visual perception and memory skills
Grades: K - 12th+

Enhance visual perception and memory for reading and math! This is an easy-to-use but very powerful program for developing and testing visual memory skills.
Memory Challenge Software
Mind Benders Series
Deductive Thinking Skills Logic Puzzles - Books & Software
Grades: PreK - 12th+
Our bestselling deductive thinking puzzles develop logic, reading comprehension, and mental organization skills vital to achieving higher grades and top test scores in all subjects. They are also great for improving real-life problem-solving skills.
Multiple award winner, including the Practical Homeschooling Logic Award and the Cathy Duffy Top 100.
Mind Benders Beginning Book 1
Mind Benders Beginning 1 Software
Mind Benders Beginning Book 2
Mind Benders Beginning 2 Software (Grades 1-2)
Mind Benders Warm Up
Mind Benders A1
Mind Benders A2
Mind Benders A3
Mind Benders A4
Mind Benders A1-A2 Software
Mind Benders A3-A4 Software
Mind Benders B1
Mind Benders B2
Mind Benders B3
Mind Benders B4
Mind Benders B1-B2 Software
Mind Benders B3-B4 Software
Mind Benders C1
Mind Benders C2
Mind Benders C3
Mind Benders 14-Book Set (PreK-12th Grade)
Mind Benders 7-Book Set (PreK-6th Grade)
Mind Benders 7-Book Set (7th-12th Grade)
Mind Benders 4-CD Software Set
Organizing Thinking Series
Improves content learning as it develops critical thinking and effective learning strategies!
Grades: 2nd - 8th
Writing, Language Arts, Social Studies, Math, and Science
Lessons integrate content instruction, critical thinking, and graphic organizers to help students:
  • Simplify, understand, and remember information
  • Develop deeper learning connections
  • Organize and manage their own thinking and learning
  • Organizing Thinking Book 1
    Organizing Thinking Book 2
    Organizing Thinking Book 1 Graphic Organizers on CD
    Organizing Thinking Book 2 Graphic Organizers on CD
    Reading Detective Series
    Higher-Order Thinking to Improve Reading Comprehension
    Grades: 3rd - 12th
    Uses Standards-based higher-order thinking activities to develop the analysis, synthesis, and vocabulary skills required for exceptional reading comprehension.
    Avaliable in books or software!
    Reading Detective Beginning
    Reading Detective A1
    Reading Detective B1
    Reading Detective Rx
    Reading Detective 3-Book Set
    Reading Detective Beginning Software CD
    Reading Detective A1 Software CD
    Reading Detective B1 Software CD
    Reading Detective Software 3-CD Set
    Red Herring Mysteries
    Solving Mysteries Through Critical Questioning
    Grades: 4th - 12th
    Children learn to think beyond the literal meaning! Funny mysteries develop inferential and deductive reasoning for more effective reading, listening, and logical thinking. Encourages creative brainstorming and flexible thinking.
    Red Herring Mysteries Level 1
    Red Herring Mysteries Level 2
    Revenge of the Spiders Software
    Grades: K - 12th+
    Revenge of the Logic Spiders helps students apply deeper levels of comprehension and logic to their schoolwork and to standardized and aptitude tests. The game is fun, challenging, and an effective independent learning program.
    Revenge of the Math Spiders helps students develop mental flexibility with basic operations. Improves their logic, reasoning, and confidence as they build strong math and problem-solving skills.
    Revenge of the Riddle Spiders software uses rhyming riddles and a fun chase game to improve students' language skills in spelling, vocabulary, word use, and understanding of multiple word meanings. It uses all of the riddles found in the Dr. DooRiddles books plus dozens more!
    Revenge of the Logic Spiders
    Revenge of the Math Spiders A1 Software
    Revenge of the Math Spiders B1 Software
    Revenge of the Riddle Spiders A1 Software
    Revenge of the Riddle Spiders B1 Software
    Revenge of the Riddle Spiders C1 Software
    Science Detective Series
    Teaches standards-based science as it develops reading, writing, and critical thinking skills!
    Grades: 3rd - 6th
    Uses topics and skills drawn from national science standards to prepare children for more advanced science courses and new assessments that measure reasoning, reading comprehension, and writing in science.
    Students read lessons that include a charts, tables, and graphs, then they answer critical thinking questions to improve understanding of science concepts and develop reading comprehension, and inferential and deductive thinking skills.
    Science Detective Beginning
    Science Detective Beginning Software
    Science Detective A1
    Science Detective A1 Software
    Sciencewise Series
    Discover Scientific Process through Problem Solving
    Grades: 7th - 12th+
    Sciencewise uses experiments with surprising outcomes and hands-on activities that require critical thinking to teach scientific analysis and problem solving. Demonstrations capture students' interest by revealing surprising outcomes. Each experiment is followed by easy-to-use questions that reinforce scientific thinking. Creative Challenges presents students with scientific problems to solve, allowing them to practice and apply the science process skills learned.
    Sciencewise Book 3
    Scratch Your Brain Math
    Clever Math Ticklers
    Grades: 2nd-12th
    Meeting math standards and developing problem solving skills has never been such fun! These fun activities boost students' math competence and prepare them for standardized tests and assessments.
    Scratch Your Brain A1
    Scratch Your Brain B1
    Scratch Your Brain C1
    Scratch Your Brain Algebra
    Scratch Your Brain Geometry
    Scratch Your Brain® 3-Book Set
    Think-A-Grams  -  Verbal Picture Puzzles
    Verbal Picture Puzzles develop visual-verbal thinking.
    Grades: 4 - 12+
    Popular picture puzzles bring together students' logical/objective (left-brain) and random/subjective (right-brain) thinking to sharpen their language usage and visual skills. Students analyze the way words are written (e.g., size, position, direction) to solve each puzzle using common idioms and words.
    Think-A-Grams A1
    Think-A-Grams A2
    Think-A-Grams B1
    Think-A-Grams C1
    Think-A-Grams C2
    Think-A-Grams 4-Book Set
    Think Analogies Books & Software
    Builds vocabulary and reading comprehension skills! Test Preparation.
    Grades: 3rd - 12th
    Engaging activities help students develop razor-sharp analogy, vocabulary, and analysis skills to improve reading comprehension, academic performance and test results. Clearly, easily, and effectively teaches students how to analyze and classify analogies by relationship, category, and structure. Test Preparation: Prepares students for higher-level vocabulary and reading challenges and for state and other standardized educational assessments.
    Think Analogies A1
    Think Analogies B1
    Think Analogy Puzzles Software A1
    Think Analogy Puzzles Software B1
    Think Analogy Puzzles Software C1
    Think Analogy Puzzles Software 3-CD Set
    Thinker Doodles Series
    Develops creative and critical thinking and attention to detail.
    Grades: PreK - 4th

    Activities develop a wide variety of thinking skills as they engage your child in drawing and coloring. More fun than mindless coloring books, Thinker Doodles develop organized analysis and motor skills needed for success in reading, writing, and math. These quick, fun activities can be used in the classroom, after school, at home, and on trips to stimulate developing minds.
    Thinker Doodles Clues and Choose Beginning
    Thinker Doodles Clues and Choose A1
    Thinker Doodles Half 'n Half A1
    Thinker Doodles Half 'n Half Animals B1
    Thinker Doodles 4-Book Set
    Thinking Connections - Concept Maps for Life Science
    Effectively teaches and assesses students' understanding of life science contents and vocabulary!
    Books-on-CD
    Grades: 4th - 12th+
    Engaging concept maps teach life science and help easily evaluate students' knowledge of key life science connections. Concept Files provide the necessary information to complete the lessons. Students carefully analyze and synthesize information, then fill in the relationships on the concept maps.
    Thinking Connections A1 (Book-on-CD)
    Thinking Connections B1 (Book-on-CD)
    Visual Perceptual Skill Building Series
    Builds Visual, Motor, and Critical Thinking Skills
    Grades: PreK - 3rd
    Quick activities develop students' recognition of lettes, words, numbers, and similar/dissimilar objects. Improves sequencing and visual memory skills. Includes eight progressively sequenced skill sections with pretests and post tests to evaluate students' beginning and ending skill levels. Available in books or books-on-CD!
    Visual Perceptual Skill Building Book 1
    Visual Perceptual Skill Building Book 2
    Visual Perceptual Skill Building 1 Book-on-CD
    Visual Perceptual Skill Building 2 Book-on-CD
    What Would You Do? - Moral Delimmas Series
    Critical Thinking applied to real-life moral dilemmas
    Grades: 2nd - 12th+

    Gives students the opportunity to apply their moral values to real-life moral dilemmas. These problems are wonderful for family or class discussion problems that develop critical thinking skills and explore character-building issues.
    Concepts/Skills: Self-Reflection, Reading Comprehension, Organized Analysis, Compare and Contrast, Identification of Assumptions, Respect, Empathy, Responsibility, Perserverance, Courage, Integrity, Self-Discipline
    What Would You Do? Book 1
    What Would You Do? Book 2
    Word Roots
    Empowers students with unlimited vocabulary, prepares for testing and higher education!
    Grades: 2nd - 12th+
    Effective activities teach Latin and Greek prefixes, roots, and suffixes - the building blocks of English. Improves spelling, vocabulary, and reading comprehension.
    Available in books or software!
    Word Roots Beginning
    Word Roots A1
    Word Roots A2
    Word Roots B1
    Word Roots B2
    Word Roots 4-Book Set
    Word Roots 5-Book Set
    Word Roots A1 Software
    Word Roots A2 Software
    Word Roots B1 Software
    Word Roots 3-CD Software Set
    You Decide!
    Grades: 6th - 12th
    With You Decide! court is in session. The honorable “judges,” your students, will be asked to rule on 75 actual U.S. Supreme Court cases based on the first eight amendments to the Constitution. Students will sharpen their critical thinking skills and their legal and historical knowledge as they analyze the amendments, discover their origins, and rule on actual cases presented before the U.S. Supreme Court.
    You Decide! Student Text
    You Decide! Instruction Answer Guide
    You Decide! Sample 1
    You Decide! Sample 2

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