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The age and grade levels provided in the product descriptions below are from the publishers. These are based on national standards for typically developing children. If you've got a highly capable child you'll know to take these with a grain of salt.

The titles are sorted by approximate difficulty level with the easiest titles appearing first.

If you're interested in seeing our entire product range you'll see a product index link at the bottom of each page. This lists our entire range in alphabetical order. You can also browse by publisher in our Learning by Publisher or by Subject or Skill taught in the Interest Section in the vertical navigation bar to the left.
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Think-et Green Think-et Green

Age: 8 and up (due to small size of pieces)

A portable set of trinkets with ideas as to how to use them to build creativity, memory, analytical thinking and more while having fun. Six different sets of trinkets are available.

Our Price: $9.99
Think-et Purple Think-et Purple

Age: 8 and up (due to small size of pieces)

A portable set of trinkets with ideas as to how to use them to build creativity, memory, analytical thinking and more while having fun.Take 15 tiny treasures from all over the world and use them 10 different ways, including for hilarious storytelling, mind-bending memory games and even a challenging strategy game. Think-ets is ideal for home, restaurants, waiting rooms or pool-sides.

Our Price: $9.99
Think-et Red Think-et Red

Age: 8 and up (due to small size of pieces)

A portable set of trinkets with ideas as to how to use them to build creativity, memory, analytical thinking and more while having fun. Take 15 tiny treasures from all over the world and use them 10 different ways, including for hilarious storytelling, mind-bending memory games and even a challenging strategy game. Think-ets is ideal for home, restaurants, waiting rooms or pool-sides.

Our Price: $9.99
Think-et Sports Collection Think-et Sports Collection

Age: 8 and up (due to small size of pieces)

A portable set of trinkets with a sports theme with ideas as to how to use them to build creativity, memory, analytical thinking and more while having fun.Take 15 tiny treasures from all over the world and use them 10 different ways, including for hilarious storytelling, mind-bending memory games and even a challenging strategy game. Think-ets is ideal for home, restaurants, waiting rooms or pool-sides.

Our Price: $9.99
Think-et Fairy Collection Think-et Fairy Collection

Age: 8 and up (due to small size of pieces)

A portable set of trinkets with a fairy theme with ideas as to how to use them to build creativity, memory, analytical thinking and more while having fun.Take 15 tiny treasures from all over the world and use them 10 different ways, including for hilarious storytelling, mind-bending memory games and even a challenging strategy game. Think-ets is ideal for home, restaurants, waiting rooms or pool-sides.

Our Price: $9.99
Novel Thinking - Charlie and the Chocolate Factory Novel Thinking: Charlie & Chocolate Factory

Grade(s): 3-6
Pages: 105

Help children actively engage in the reading process by focusing on those skills that lead to better comprehension, higher test scores, and a greater love of reading. The engaging chapter-by-chapter activities focus on true comprehension - not just word searches that measure surface comprehension.

Our Price: $12.99
Novel Thinking - Charlotte's Web Novel Thinking: Charlotte's Web

Grade(s): 3-6
Pages: 115

Help children actively engage in the reading process by focusing on those skills that lead to better comprehension, higher test scores, and a greater love of reading. The engaging chapter-by-chapter activities focus on true comprehension - not just word searches that measure surface comprehension.

Our Price: $12.99
Novel Thinking - Shiloh Novel Thinking: Shiloh

Grade(s): 3-6
Pages: 96

Help children actively engage in the reading process by focusing on those skills that lead to better comprehension, higher test scores, and a greater love of reading. The engaging chapter-by-chapter activities focus on true comprehension - not just word searches that measure surface comprehension.

Our Price: $12.99
Novel Thinking - George's Marvelous Medicine Novel Thinking: George's Marvellous Medicine

Grade(s): 3-6
Pages: 90

Help children actively engage in the reading process by focusing on those skills that lead to better comprehension, higher test scores, and a greater love of reading. The engaging chapter-by-chapter activities focus on true comprehension - not just word searches that measure surface comprehension.

Our Price: $12.99
Novel Thinking - In Their Own Words: Abraham Lincoln Novel Thinking - In Their Own Words: Abraham Lincoln

Grade(s): 3-9
Pages: 112

Help children actively engage in the reading process by focusing on those skills that lead to better comprehension, higher test scores, and a greater love of reading. The engaging chapter-by-chapter activities focus on true comprehension - not just word searches that measure surface comprehension.

Our Price: $12.99
Teaching Technology Teaching Technology

Grade(s): 3-12+
Pages: 74

A fun, highly effective method for teaching Internet research skills and presentation technology to students. The book provides easy-to-follow, step-by-step guidance for the teacher/parent and student, and includes online access to instructional materials for classroom demonstration. Students love the activities because they get to create a dynamic presentation on a topic that interests them.

Our Price: $19.99
Upper Elementary Challenge Math Upper Elementary Challenge Math

Grade(s): 3-5
Pages: 380

Designed for students who need more challenging material than they typically encounter in most math curricula. Each chapter contains instruction and problems at 4 levels of difficulty. In addition, each chapter includes multiple “problem sets” in which a single problem type is presented in increasingly complex steps, illustrating how a simpler problem can progress from one step to multistep problem solving.

Our Price: $24.95
Building Thinking Skills Level 2 Building Thinking Skills Level 2

Grade(s): 4-6
Activities: 1374
Pages: 416

Building Thinking Skills® provides highly effective verbal and nonverbal reasoning activities to improve vocabulary, reading, writing, math, logic, and figural-spatial skills, as well as visual and auditory processing. This exceptional skill set provides a solid foundation for academic excellence and success on any assessment test.Also available in software - a game like presentation of the same exercises.

Our Price: $29.99
The Basics of Critical Thinking The Basics of Critical Thinking

Grade(s): 4-9
Pages: 152, color

Many workbooks claim to teach or develop critical thinking skills, but most of these products never define critical thinking or try to teach the meaning to students. This book defines and teaches critical thinking in a way all students can understand through simple explanations, diagrams, and short, engaging activities. In addition to being a course in critical thinking, the activities in this book can be used to supplement lessons in all subjects.

Our Price: $24.99
Learning on Purpose Learning on Purpose

Grade(s): 7-12+
Activities: 172
Pages: 320

The Learning on Purpose step-by-step approach helps students take control of their own learning. Your child will learn to evaluate his/her learning strengths and goals, prioritize and maximize study time, identify and solve study problems, improve comprehension, and apply effective test-taking strategies.

List Price: $24.99
Our Price: $14.99
You save $10.00!
Developing CT through Science, Book 2 Developing Critical Thinking Through Science Book 2

Grade(s): 4-8
Activities: 80
Pages: 272

Developing Critical Thinking through Science presents standards-based, hands-on, minds-on activities that help students learn basic physical science principles and the scientific method of investigation.

Each activity is a 10- to 30-minute guided experiment in which students are prompted to verbalize their step-by-step observations, predictions, and conclusions. Reproducible pictures or charts are included when needed, but the focus is inquiry-based, hands-on science.

Our Price: $29.99
Balance Math™ & More Level 2 Balance Math & More Level 2

Grade(s): 4-12+
Activities: 38
Pages: 48, reproducible

Sharpen your child's critical thinking skills, computational skills, and develop algebraic reasoning.

Our Price: $9.99
Balance Math™ Teaches Algebra Balance Math Teaches Algebra

Grade(s): 4-12+
Activities: 38
Pages: 48

Sharpen your child's critical thinking skills, computational skills, and develop algebraic reasoning.

Our Price: $14.99
Dr. DooRiddles B1 Dr. DooRiddles B1

Grade(s): 4-7
Activities: 160
Pages: 48

Dr. DooRiddles 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.

Our Price: $9.99
Vocabulary Riddles Vocabulary Riddles: A to Z Catastrophes Book 1

Grade(s): 4-8
Pages: 30

Decoding the riddles can be an impetus for incorporating dynamic words into students' lexicons and their writing. Build vocabulary the fun way in Grades 4 - 8! This collection of riddles will entertain your students as well as build their PSAT and ACT vocabulary.

Our Price: $7.99
Dr. DooRiddles B2 Dr. DooRiddles B2

Grade(s): 4-7
Activities: 160
Pages: 48

Dr. DooRiddles 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.

Our Price: $9.99
Jumpstarters for Analogies Grades 4-8+ Jumpstarters for Analogies Grades 4-8+

These short, daily warm-up activities will help students in preparing for the day's lesson with activities that ultilize the students' creative, critical thinking, and memory skills. This book will provide students with opportunities to practice their reasoning and logic skills with analogies in language arts, science, geography, health, art and music, and math.

Our Price: $8.99
Challenge Math Challenge Math

Grade(s): 4-9
Pages: 429

Challenge Math provides enrichment math activities and develops student problem solving skills. Over 1000 problems at three levels of difficulty to challenge even the brightest students.

Our Price: $24.95
Summer Splash Learning Activities Grades 5-6 Summer Splash Learning Activities Grades 5-6

Summer Splash Learning Activities will keep your child mentally active and learning all summer long. The self-motivating, hands-on-activities in this book will review topics your child learned in fifth grade and prepare him or her with the skills necessary to leap into the sixth grade!

Our Price: $4.99
Grade 5 Book Bundle 2017 Gr 5 Book Bundle (Critical Thinking Company)

The Critical Thinking Company publishes award winning products to help students of all abilities improve their critical thinking abilities and achieve higher test scores. This collection contains their most popular Grade 5 titles and is offered at a 10% discount.

Publisher Price $272.86
Our Price: $245.57
You save $27.29!
Word Roots Level 1 Word Roots Level 1

Grade(s): 5-12+
Pages: 240

Learn Latin and Greek prefixes, suffixes and root words for improved vocabulary. The book contains reproducible worksheets with activities for practice, reinforcement, and comprehension for each root introduced. Answers included.

Our Price: $24.99
Science Detective® A1 Science Detective A1

Grade(s): 5-6
Activities: 40
Pages: 150

Science Detective® uses topics and skills drawn from national science standards to prepare your child for more advanced science courses and new assessments that measure reasoning, reading comprehension, and writing in science.

Our Price: $21.99
Daily Mind Builders Daily Mind Builders: Language Arts

Grade(s): 5-12+
Pages: 112

Short, fun daily activity pages for home or school with a Language Arts focus. Develops inferential reasoning, deductive thinking, synthesizing disparate information and other important skills.

Our Price: $15.99
Daily Mind Builders Daily Mind Builders: Social Studies

Grade(s): 5-12+
Pages: 127

Short, fun daily activity pages for home or school with a Social Studies focus. Develops inferential reasoning, deductive thinking, synthesizing disparate information and other important skills.

Our Price: $15.99
Daily Mind Builders Science Daily Mind Builders: Science

Grade(s): 5-12+
Pages: 144

Short, fun daily activity pages for home or school with a Science focus. Develops inferential reasoning, deductive thinking, synthesizing disparate information and other important skills.

Our Price: $15.99
Inference Jones: Level 1 Inference Jones: Level 1

Grade(s): 5-6
Pages: 42, perforated

Inference Jones provides short, fun, and easy-to-use activities that improve critical reading and higher order thinking by developing the student’s ability to draw inferences from written text. Research shows inferential reasoning is a prerequisite component to superior reading comprehension. Reading level is Gr 5-6. Suitable for use with older students as a remedial resource.

Our Price: $11.99
Advancing Through Analogies Advancing Through Analogies

Grade(s): 5-8
Pages: 32
Challenging verbal analogies of 16 different types are perfect for teaching analytical thinking, enhancing vocabulary, and improving writing skills.

Our Price: $12.95
Orbiting With Logic Orbiting With Logic

Grade(s): 5-8
Pages: 32

Challenging and instructional, these thought-provoking books present sequential exercises in logical reasoning that include relationships, analogies, syllogisms, sequences, deductive reasoning, inference, truth-values, and logical notation.

Our Price: $12.95
Quotes To Spark Discussion Quotes To Spark Discussion

Grade(s): 5-9
Activities: 55
Pages: 64

Ignite interaction and discussion with intriguing quotes! The 55 quotes in this book are specifically chosen to instigate dialogue on interesting ideas and possibilities.

Our Price: $12.99
Quotes To Stretch Your Brain Quotes To Stretch Your Brain

Grade(s): 5-9
Activities: 55
Pages: 64

Ignite interaction and discussion with intriguing quotes! The 55 quotes in this book are specifically chosen to instigate dialogue on interesting ideas and possibilities.

Our Price: $12.99
Use It! Don't Lose It! Daily Math Practice 5 Use It! Don't Lose It! Daily Math Practice 5

Grade(s): 5
Activities: 55
Pages: 180

Five practice problems a day, every day for 36 weeks are set up in a spiraling scope and sequence. Students practice each skill at regular intervals and every time a skill shows up, it has a new context requiring students to dig into their memories, recall what they know, and apply it to a new situation. A perfect book for keeping skills intact over summer or supplementing a bored child during the school year.

Our Price: $14.99
Mystery of the Clockwork Sparrow Mystery of the Clockwork Sparrow

Age(s): 10-14 years

Recently orphaned Sophie Taylor, now a shopgirl at London's newly opened Sinclair's department store, finds herself implicated in the theft of the priceless clockwork sparrow in this Edwardian mystery adventure.

Our Price: $6.99
Mystery of the Jeweled Moth Mystery of the Jeweled Moth

Age(s): 10-14 years

Once again our heroines, Sophie and Lil are on the case, donning cunning disguises and mingling in high society, leading them straight to London's most dangerous criminal mastermind.

Our Price: $6.99
Summer Activities for the Gifted Student going into Grade 5 Summer Activities for the Gifted Student going into Grade 5

Grade: entering 5
Pages: 191

Thought-provoking exercises designed to challenge your advanced learner during the vacation months helping your child to transition seamlessly from one grade to the next.

Our Price: $8.95
GATE Test Prep Bundle for Grade 6 GATE Test Prep Bundle for Grade 6-7

The GATE Test Prep Bundle for Grade 6 contains our top picks to use in preparation for Gifted and Talented testing of your highly capable child. This is also a great selection for all round enrichment. Skills covered include Verbal Reasoning, Non-Verbal Reasoning, Quantitative Reasoning, Logic, Creativity and Test Taking.

Publisher Price $136.99
Our Price: $119.99
You save $17.00!
Grade 6 Book Bundle 2017 Gr 6 Book Bundle (Critical Thinking Company)

The Critical Thinking Company publishes award winning products to help students of all abilities improve their critical thinking abilities and achieve higher test scores. This collection contains their most popular Grade 6 titles and is offered at a 10% discount.

Publisher Price $255.86
Our Price: $230.27
You save $25.59!
WISC® Prep Bundle for Grade 6 (Critical Thinking Company) 2016 WISC®Prep Bundle for Grade 6 (Critical Thinking Company)

Collection of The Critical Thinking Company's top selling Grade 4-6 products to use in preparation for the Wechsler Intelligence Scale for Children (WISC-IV)®. Suitable for an average Grade 6 student or bright younger child.

Publisher Price $197.90
Our Price: $178.11
You save $19.79!
CogAT® Prep Bundle for Grade 6 (Critical Thinking Company) 2016 CogAT®Prep Bundle for Grade 6 (Critical Thinking Company)

Collection of The Critical Thinking Company's top selling Grade 6 products to use in preparation for the Cognitive Abilities Test®. Suitable for an average Grade 6 student or bright younger child.

Publisher Price $197.90
Our Price: $186.21
You save $11.69!
OLSAT® Prep Bundle for Grade 5 (Critical Thinking Company) 2016 OLSAT®Prep Bundle for Grade 6 (Critical Thinking Company)

Collection of The Critical Thinking Company's top selling Grade 4 products to use in preparation for the Otis-Lennon School Abilities Test®. Suitable for an average Grade 5-6 student or bright younger child.

Publisher Price $199.90
Our Price: $179.91
You save $19.99!
ITBS® Prep Bundle for Grade 6 (Critical Thinking Company) 2016 ITBS Prep Bundle for Grade 6 (Critical Thinking Company)

Collection of The Critical Thinking Company's top selling Grade 5-6 products to use in preparation for the Iowa Test of Basic Skills (ITBS®).

Publisher Price $166.93
Our Price: $150.24
You save $16.69!
Mathematical Reasoning Level G Mathematical Reasoning Level G

Grade(s): 6
Pages: 448, color
Answers included

Grade level math presented in a way which bridges the gap between computation and mathematical reasoning. Use for variety, fun and understanding.

Our Price: $42.99
Math Analogies Level 3 Math Analogies Level 3

Grade(s): 6-7
Pages: 64, perforated, reproducible

Understanding analogies and the ability to reason analogically are important problem-solving skills. There are few resources to assist children in the explicit use of analogous reasoning with quantitative and spatial information. This series fills that void.

Our Price: $11.99
Vocabulary Virtuoso Vocabulary Virtuoso: Mastering Middle School Vocabulary

Grade(s): 6-8
Pages: 168

Increases vocabulary, stimulates imagination, and boosts standards-based language arts skills. Each lesson contains definitions, pronunciation keys, parts of speech, and alternate choices for each word made up of synonyms, idioms, and/or phrases.

Our Price: $16.99
Dare to Compare: Math Dare to Compare: Math Level 2

Grade(s): 6-7
Pages: 92, perforated, reproducible

This collection of 150 problems recasts more traditional math problems from a single calculation to two or more calculations to to make a comparison and come to a final conclusion.

Our Price: $12.99
Think Analogies B1 Think Analogies B1

Grade(s): 6-12+
Activities: 49
Pages: 56

Think Analogies® clearly, easily, and effectively teaches students how to analyze and classify analogies by relationship, category, and structure.

Our Price: $11.99
Reading Detective B1 Reading Detective B1

Grade(s): 7-8
Activities: 50
Pages: 246

The standards-based critical thinking activities of Reading Detective® develop the analysis, synthesis, and vocabulary skills children need for exceptional reading comprehension. The activities are especially effective at helping children understand more challenging reading concepts such as drawing inferences, making conclusions, determining cause-and-effect, and using context clues to define vocabulary.

Our Price: $24.99
Math Detective B1 Math Detective B1

Grade(s): 7-8
Activities: 40
Pages: 136

Math Detective® uses topics and skills drawn from national math standards to prepare your students for advanced math courses and assessments that measure reasoning, reading comprehension, and writing in math.

Students read a short story that includes a chart, table, or graph. Next they answer critical thinking questions to improve their understanding of the math concept and develop their critical thinking (comprehension) skills. Students can’t just scan the story for answers—they must carefully analyze and synthesize the information from the text and the chart, table, or graph to explain and support their answers.

Our Price: $19.99
Think-A-Minutes C1 Think-A-Minutes C1 (Dr Funster's)

Grade(s): 6-8
Activities: 40
Pages: 45

A collection of fast, fun riddles, puzzles and teasers from a variety of out of print and currently available books published by The Critical Thinking Company. Activities include language development, math, writing, visual-spatial, and perceptual skills activities that build deductive, inductive, and logical reasoning.

Our Price: $7.99
Reading Detective Rx Reading Detective Rx

Grade(s): 6-12+
Activities: 44
Pages: 246

The standards-based critical thinking activities of Reading Detective® develop the analysis, synthesis, and vocabulary skills children need for exceptional reading comprehension. The activities are especially effective at helping children understand more challenging reading concepts such as drawing inferences, making conclusions, determining cause-and-effect, and using context clues to define vocabulary.

The grades 6–12+ remedial (RX) level is organized into single-skill units with a concluding mixed-skills unit and provides an introductory lesson for each skill.
(RX activities are "prescriptive" to help underperforming students in grades 6–12+ improve their comprehension skills. Reading level is grades 4–6; story content is grades 6+.)

Our Price: $24.99
What Would You Do Book 2 What Would You Do Book 2

Grade(s): 6-12
Activities: 32
Pages: 32

A collection of discussion problems that develop critical thinking skills and explore character-building issues. Give your children the opportunity to apply their moral values to real-life moral dilemmas. Use these activities in the car, around the dinner table or in the classroom.

Our Price: $10.99
Balance Benders Level 2 Balance Benders Level 2

Grade(s): 6-12+
Activities: 39
Pages: 48

Children develop deductive thinking and pre-algebra skills as they solve balance puzzles. Children must analyze each balance to identify the clues, and then synthesize the information to solve the puzzle.

Our Price: $9.99
Balance Math™ & More Level 3 Balance Math & More Level 3

Grade(s): 6-12+
Activities: 38
Pages: 48

Sharpen your child's critical thinking skills, computational skills, and develop algebraic reasoning.

Our Price: $9.99
World History Detective, Book 1 World History Detective, Book 1

Grade(s): 6-7
Pages: 368, perforated

Suitable for use as as a standards-based, stand-alone textbook, a resource of supplemental activities to enrich another textbook, or as a review course for older students. Students begin by analyzing a lesson. Next, they apply critical thinking skills to answer multiple choice and short essay questions. Finally, students support their answers by identifying evidence learned from the lesson.

Our Price: $34.99
Editor In Chief Level 2 Editor In Chief Level 2

Grade(s): 6-8
Pages: 160

Editor in Chief Level 2 replaces the out of print B1 and B2 levels. It has been significantly restructured.

Editor in Chief® improves your child's grammar, punctuation, spelling, capitalization, and attention to detail.

Our Price: $19.99
   
 
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