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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 Purple
Think-et Green
Our Price: $9.99
Think-et Purple
Our Price: $9.99
Give the gift of thinking with a Think Tonight Gift Certificate. Choose from electronic or physical delivery.

Your gift certificate will contain a unique code which the recipient can apply towards the cost of any future online purchase at Think Tonight.
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.
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.
Think-et Red Think-et Sports Collection Think-et Fairy Collection
Think-et Red
Our Price: $9.99
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.
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.
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.
Novel Thinking - Charlie and the Chocolate Factory Novel Thinking - Charlotte's Web Novel Thinking - Shiloh
Novel Thinking: Shiloh
Our Price: $12.99
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.

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.

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.

Novel Thinking - George's Marvelous Medicine Novel Thinking - In Their Own Words: Abraham Lincoln Teaching Technology
Teaching Technology
Our Price: $19.99
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.
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.

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.
Surfing the Net Science Upper Elementary Challenge Math Building Thinking Skills Level 2
Surfing the Net Science
Our Price: $24.99
Grade(s): 3-6
Pages: 256
Format: paperback, color

Students may be experienced on computers but have little understanding of how to use the Internet to research topics. The Surfing the Net: Science activities are designed to introduce, guide, and expand students' use of the Internet using critical thinking skills to locate and use information to answer standards-based questions. Each topic offers a variety of research-based activities that can be used in teacher-led instruction or as student-guided instruction.
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.
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.
The Basics of Critical Thinking Learning on Purpose Developing CT through Science, Book 2
Learning on Purpose
List Price: $24.99
Our Price: $14.99
You save $10.00!
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.
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.
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.
Balance Math™ & More Level 2 Balance Math™ Teaches Algebra Editor In Chief A2
Editor In Chief A2
Our Price: $14.99
Grade(s): 4-12+
Activities: 38
Pages: 48, reproducible

Sharpen your child's critical thinking skills, computational skills, and develop algebraic reasoning.
Grade(s): 4-12+
Activities: 38
Pages: 48

Sharpen your child's critical thinking skills, computational skills, and develop algebraic reasoning.
Grade(s): 4-5
Activities: 33
Pages: 63

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

Students identify and circle errors in each story. Then they insert, modify, or delete punctuation, words, and short phrases to make corrections. An editing checklist and annotated guide to grammar, usage, and punctuation are provided to help focus students' thinking and allow them to match their answers to applicable rules. Detailed answers are also included.
Dr. DooRiddles B1 Dr. DooRiddles B2 Jumpstarters for Analogies Grades 4-8+
Dr. DooRiddles B1
Our Price: $9.99
Dr. DooRiddles B2
Our Price: $9.99
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.
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.
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.
Challenge Math Summer Splash Learning Activities Grades 5-6 Grade 5 Book Bundle
Challenge Math
Our Price: $24.95
2017 Gr 5 Book Bundle (Critical Thinking Company)
Publisher Price $272.86
Our Price: $245.57
You save $27.29!
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.
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! 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.
Word Roots A1 software Word Roots Level 1 Science Detective® A1
Word Roots A1 Software
List Price: $20.99
Our Price: $12.50
You save $8.49!
Word Roots Level 1
Our Price: $24.99
Science Detective A1
Our Price: $21.99
Grade(s): 5-12+
Activities: 30

Learn Latin and Greek prefixes, suffixes and root words for improved vocabulary. Software allows children to work independently on vocabulary development inspired by the challenge of rebuilding an ancient Roman City.
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.
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.
Daily Mind Builders Daily Mind Builders Daily Mind Builders Science
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.
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.
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.
Quick Thinks Math B1 Math Word Problems C: Mixed Concepts Inference Jones: Level 1
Inference Jones: Level 1
Our Price: $11.99
Grade(s): 5-7
Activities: 120
Pages: 44

Quick Thinks Math develops students' basic math skills and their ability to compute, estimate, create tables and charts, explain their answer processes orally and in writing, and feel confident when faced with new math problems. Includes multiplication, division, fractions, and decimals.
Grade(s): 5-10
Activities: 269
Pages: 90

Math Word Problems helps students conquer the "dreaded" math word problem by teaching them when and how to apply the math operations they already know to real-life situations. The developmentally sequenced problems in each book are arranged so they cannot be solved by rote processes. Each problem requires its own thinking/problem-solving approach rather than applying the same solution process to entire groups of problems.
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.
Advancing Through Analogies Orbiting With Logic Puzzle It! Logic Puzzles and Tricks
Orbiting With Logic
Our Price: $12.95
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.
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.
Grade(s): 5-8
Activities: 50
Pages: 63

Hone your critical thinking and problem-solving skills while working on a variety of puzzles using logic. The puzzles are challenging but do not require complex or formal knowledge of mathematics.
Quotes To Spark Discussion Quotes To Stretch Your Brain Use It! Don't Lose It! Daily Math Practice 5
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.
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.
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.
Mystery of the Clockwork Sparrow Mystery of the Jeweled Moth Summer Activities for the Gifted Student going into Grade 5
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.
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.
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.
Summer Activities for the Gifted Student going into Grade 6 GATE Test Prep Bundle for Grade 6 Grade 6 Book Bundle
GATE Test Prep Bundle for Grade 6-7
Publisher Price $136.99
Our Price: $119.99
You save $17.00!
2017 Gr 6 Book Bundle (Critical Thinking Company)
Publisher Price $255.86
Our Price: $230.27
You save $25.59!
Grade: entering 6
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.
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. 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.
WISC® Prep Bundle for Grade 6 (Critical Thinking Company) CogAT® Prep Bundle for Grade 6 (Critical Thinking Company) OLSAT® Prep Bundle for Grade 5 (Critical Thinking Company)
2016 WISC®Prep Bundle for Grade 6 (Critical Thinking Company)
Publisher Price $197.90
Our Price: $178.11
You save $19.79!
2016 CogAT®Prep Bundle for Grade 6 (Critical Thinking Company)
Publisher Price $197.90
Our Price: $186.21
You save $11.69!
2016 OLSAT®Prep Bundle for Grade 6 (Critical Thinking Company)
Publisher Price $199.90
Our Price: $179.91
You save $19.99!
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.
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.
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.
ITBS® Prep Bundle for Grade 6 (Critical Thinking Company) Mathematical Reasoning Level G Math Analogies Level 3
2016 ITBS Prep Bundle for Grade 6 (Critical Thinking Company)
Publisher Price $166.93
Our Price: $150.24
You save $16.69!
Math Analogies Level 3
Our Price: $11.99
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®).
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.
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.
Vocabulary Virtuoso Think Analogies B1 Reading Detective B1
Think Analogies B1
Our Price: $11.99
Reading Detective B1
Our Price: $24.99
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. Lessons also include a story involving middle school students that introduces language arts concepts such as alliteration, idioms, fallacies in reasoning, foreign words and phrases, mythology, and journalistic writing.
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.
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.
Math Detective B1 Think-A-Minutes C1 Reading Detective Rx
Math Detective B1
Our Price: $19.99
Reading Detective Rx
Our Price: $24.99
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.
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.
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+.)
   
 
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