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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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Gift Certificate Gift Certificate

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.

Think-et Blue Think-et Blue

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 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 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
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
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
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: $10.99
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
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
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: $16.99
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: $16.99
Self Scoring IQ Tests Self-Scoring IQ Tests

Grade(s): middle school and up
Pages: 31

The best approximation of IQ that is available without going to a professional examiner. Contains two comprehensive tests, similar to the elaborate standardized ones administered by professional psychologists like the WISC and Stanford-Binet, perfectly designed to measure your cognitive skills, reasoning abilities, quick-learning capability, and problem-solving proficiency.

Our Price: $5.95
Mystery of the Clockwork Sparrow The Mystery of the Clockwork Sparrow (Sinclair Mysteries)

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 The Mystery of the Jeweled Moth (Sinclair Mysteries)

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
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: $10.99
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
Grade 7-8 Book Bundle Gr 7-8 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 7-8 titles and is offered at a 10% discount.

Publisher Price $304.86
Our Price: $273.95
You save $30.91!
Building Thinking Skills Level 3 Figural Building Thinking Skills Level 3 Figural

Grade(s): 7-12+
Activities: 259
Pages: 280

Building Thinking Skills® provides highly effective 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.

Our Price: $29.99
Building Thinking Skills Level 3 Verbal Building Thinking Skills Level 3 Verbal

Grade(s): 7-12+
Activities: 350
Pages: 384

Building Thinking Skills® provides highly effective verbal 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.

Our Price: $29.99
Building Thinking Skills Level 3 Verbal  Instructor Book on cd Building Thinking Skills Level 3 Verbal Instructor Book on cd

Grade(s): 7-12

Instructor/Solution Guide to accompany Building Thinking Skills Level 3 Verbal. Includes objectives, answers, and focus questions that reinforce analytical skills as students think through concepts. This is a pdf file on cd.

Our Price: $19.99
Building Thinking Skills 3 Figural Instructor Building Thinking Skills Level 3 Figural Instructor Book on cd

Grade(s): 7-12

Instructor/Solution Guide to accompany Building Thinking Skills Level 3 Figural. Includes objectives, answers, and focus questions that reinforce analytical skills as students think through concepts. This is a pdf file on cd.

Our Price: $19.99
Mind Benders: Book 5 Mind Benders Book 5

Grade(s): 7-12+
Activities: 26
Pages: 40

Mind Benders®, our best-selling deductive thinking puzzles, develop logic, reading comprehension, and mental organizational skills that are vital to achieving high grades and top test scores in all subjects. They're also great for developing real-life, problem-solving skills.

Our Price: $10.99
Mind Benders: Book 6 Mind Benders Book 6

Grade(s): 7-12+
Activities: 26
Pages: 40

Mind Benders®, our best-selling deductive thinking puzzles, develop logic, reading comprehension, and mental organizational skills that are vital to achieving high grades and top test scores in all subjects. They're also great for developing real-life, problem-solving skills.

Our Price: $12.99
Mind Benders Book 7 Mind Benders Book 7

Grade(s): 7-12+
Activities: 26
Pages: 40

Mind Benders®, our best-selling deductive thinking puzzles, develop logic, reading comprehension, and mental organizational skills that are vital to achieving high grades and top test scores in all subjects. They're also great for developing real-life, problem-solving skills.

Our Price: $12.99
Mind Benders Book 8 Mind Benders Book 8

Grade(s): 7-12+
Activities: 26
Pages: 40

Mind Benders®, our best-selling deductive thinking puzzles, develop logic, reading comprehension, and mental organizational skills that are vital to achieving high grades and top test scores in all subjects. They're also great for developing real-life, problem-solving skills.

Our Price: $12.99
Algebra I & II Key Concepts, Practice, and Quizzes Algebra I & II Key Concepts, Practice, and Quizzes

Grade(s): 7-12+
Pages: 304, perforated, color, reproducible

Algebra Test Prep and Review provides students with a clear, easy-to-understand, step-by-step review of Algebra I & II. It can be used to supplement an algebra textbook or as a study guide for students taking standardized tests covering algebra. Students learn helpful procedures and strategies for solving algebra word problems using real-world application examples.

Our Price: $27.99
Balance Benders Level 3 Balance Benders Level 3

Grade(s): 8-12+
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: $10.99
Word Roots Level 3 Word Roots Level 3

Grade(s): 7-12+
Pages: 288

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: $25.99
Word Roots Level 4 Word Roots Level 4

Grade(s): 7-12+
Pages: 336, perforated

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: $25.99
Red Herrings Mysteries Level 2 Red Herring Mysteries Level 2

Grade(s): 7-12+
Activities: 64
Pages: 69

Develops students' inferential and deductive thinking skills for more effective reading, listening, and logical thinking. The activities also encourage creative brainstorming and flexible thinking.

Our Price: $14.99
You Decide!, Student You Decide! Student

Grade(s): 6-12+
Activities: 37
Pages: 144

With You Decide! court is in session. The honorable “judges,” your students, will be asked to decide 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.

Our Price: $26.99
You Decide! Teacher You Decide! Teacher

Grade(s): 6-12+
Activities: 37

Casts students in the role of judge to rule on 75 actual U.S. Supreme Court cases!

This Instruction/Answer Guide includes objectives, suggestions, a graphic organizer to keep track of facts in each case, and the Supreme Court decisions. Because the student book does not contain the court decisions, use of the Guide is essential.

Our Price: $16.99
U.S. History Detective® Book 1 U.S. History Detective? Book 1

Grade(s): 8-12
Pages: 336, color

U.S. History Detective® can be used as a stand-alone textbook, a resource of supplemental activities to enrich another textbook, or as a review course for older students. Its point of differentiation is that it integrates critical thinking into the content lessons.

Our Price: $39.99
U.S. History Detective Book 2 U.S. History Detective? Book 2

Grade(s): 8-12
Pages: 336, color

U.S. History Detective® can be used as a stand-alone textbook, a resource of supplemental activities to enrich another textbook, or as a review course for older students. Its point of differentiation is that it integrates critical thinking into the content lessons.

Our Price: $39.99
Grade 9-12 Book Bundle Gr 9-12 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 9-12 titles and is offered at a 10% discount.

Publisher Price $237.89
Our Price: $214.10
You save $23.79!
Cornell Critical Thinking Test Level Z Cornell Critical Thinking Test Level Z

Grade(s): 10-12+

Cornell sets the standard for all critical thinking tests. Classroom set of 10 Level Z test booklets and answer sheets. Administration manual sold separately.

Our Price: $29.99
NNAT® Prep Bundle for Grade 10 NNAT Prep Bundle for Gifted Children in Grade 10-12

Collection of titles to prepare your student in Grades 10-12 for the Naglieri Nonverbal Abilities Test® (NNAT®)

List Price: $45.99
Our Price: $41.39
You save $4.60!
WISC® Prep Bundle for Grade 9-12 (Critical Thinking Company) WISC®Prep Bundle for Grade 9-12 (Critical Thinking Company)

Collection of The Critical Thinking Company's top selling products to use in preparation for the Wechsler Intelligence Scale for Children (WISC-IV)®. Suitable for use in Gr 9-12.

Publisher Price $174.91
Our Price: $157.42
You save $17.49!
OLSAT® Prep Bundle for Grade 9-12 (Critical Thinking Company) OLSAT®Prep Bundle for Grade 9-12 (Critical Thinking Company)

Collection of The Critical Thinking Company's top selling Grade 9-12 products to use in preparation for the Otis-Lennon School Abilities Test®.  Suitable for an average Grade 9-12 student or bright younger child.

Publisher Price $147.93
Our Price: $133.14
You save $14.79!
CogAT® Prep Bundle for Grade 9 (Critical Thinking Company) CogAT®Prep Bundle for Grade 9-12 (Critical Thinking Company)

Collection of The Critical Thinking Company's top selling products to use in preparation for the Cognitive Abilities Test®. Suitable for an average Grade 9 or older student or bright younger child.

Publisher Price $174.91
Our Price: $163.72
You save $11.19!
Editor in Chief Level 3 Editor in Chief Level 3

Grade(s): 9-12+
Pages: 216, perforated, reproducible

Improves your child's grammar, punctuation, spelling, capitalization, and attention to detail. The stories involve mixed-skills practice, starting with easier errors and becoming more challenging as students become adept at the editing process. An editing checklist and annotated guide to grammar, usage, and punctuation are provide.

Our Price: $24.99
Practical Critical Thinking Practical Critical Thinking

Grade(s): 9-12+
Pages: 376, color

Practical Critical Thinking engages students in the study of critical thinking. It lays a strong foundation in the important cognitive skills necessary for critical thinking, such as comprehension, analysis, evaluation, construction, creativity, and communication.

Our Price: $39.99
Practical Critical Thinking Practical Critical Thinking Teacher's Manual

Grade(s): 9-12+
Pages: 304, reproducible

Teacher's Manual to accompany student book sold separately.

Our Price: $14.99
   
 
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