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We've put together this easy-order book bundle so you don't have to. This bundle offers our most popular books for Grades 7-8 at a 20% discount, so you get more for less.

Titles included in this bundle:
  • Building Thinking Skills® Level 3 Figural
  • Building Thinking Skills® Level 3 Verbal
  • Critical Thinking Book One
  • Critical Thinking Book One - Instruction/Answer Guide
  • Dr. DooRiddles B2
  • Dr. Funster's Think-A-Minutes C1
  • Editor in Chief® B2
  • Math Detective® B1
  • Mind Benders® B2
  • Mind Benders® B3
  • Reading Detective® B1
  • Red Herring Mysteries Level 2
  • Scratch Your Brain® Algebra
  • Scratch Your Brain® C1
  • Think-A-Grams B1
  • Word Roots B1
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Grade 7-8 Book Bundle
Grade 7-8 Book Bundle
List Price: $273.84
Our Price: $218.99
You Save $54.85!

Collection of our most popular books for Grades 7-8 at a 20% discount.
Grade 9-12 Book Bundle
Grade 9-12 Book Bundle
List Price: $221.88
Our Price: $176.99
You Save $44.89!

Collection of our most popular books for Grades 9-12 at a 20% discount.
Dr. DooRiddles B2
Dr. DooRiddles B2
Our Price: $10.99

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.
Editor In Chief B2
Editor In Chief B2
Our Price: $16.99

Grade(s): 6-8
Activities: 33
Pages: 84

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.
Scratch Your Brain C1
Scratch Your Brain C1
Our Price: $16.99

Grade(s): 6-8
Activities: 118
Pages: 88

Scratch Your Brain® contains a variety of engaging, often humorous activities, puzzles, patterns, sequences, writing multi-step solutions, and more. It also encourages brainstorming and teaches students there is usually more than one way to solve a problem. Activities are sequenced by difficulty throughout each chapter to allow students to gradually build their skills.
Think-A-Minutes C1
Think-A-Minutes C1
Our Price: $6.99

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

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

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.

The activities are sequenced developmentally. This title presents each skill (for example, classifying) in the abstract verbal form. (The companion figural title presents the same skills in the semi-concrete figural form.) Children learn to analyze relationships between objects, between words, and between objects and words as they: observe, recognize, and describe characteristics; distinguish similarities and differences; and identify and complete sequences, classifications, and analogies.
Building Thinking Skills Level 3 Figural
Building Thinking Skills® Level 3 Figural
Our Price: $29.99

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.

The activities are sequenced developmentally. This title presents each skill (for example, classifying) in the semi-concrete figural-spatial form. (The companion verbal title presents the same skills in the abstract verbal form.) Children learn to analyze relationships between objects, between words, and between objects and words as they: observe, recognize, and describe characteristics; distinguish similarities and differences; and identify and complete sequences, classifications, and analogies.
Mind Benders: B1
Mind Benders® B1
Our Price: $9.99

Grade(s): 7-12+
Activities: 14
Pages: 32

Deductive reasoning puzzles teach children logic and improve reading comprehension and test scores.
Mind Benders: B2
Mind Benders® B2
Our Price: $9.99

Grade(s): 7-12+
Activities: 14
Pages: 33

Deductive reasoning puzzles teach children logic and improve reading comprehension and test scores.
Mind Benders: B3
Mind Benders® B3
Our Price: $9.99

Grade(s): 7-12+
Activities: 14
Pages: 34

Deductive reasoning puzzles teach children logic and improve reading comprehension and test scores.
Word Roots B1
Word Roots B1
Our Price: $18.99

Grade(s): 7-12+
Activities:72
Pages: 101

Learn Latin and Greek prefixes, suffixes and root words for improved vocabulary.
Reading Detective B1
Reading Detective B1
Our Price: $23.99

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.
Critical Thinking Book 1, Student
Critical Thinking Book 1, Student
Our Price: $21.99

Grade(s): 7-12+
Activities: 70
Pages: 178

Critical Thinking teaches your child to think logically, present well-developed arguments, and see through unsupported arguments. Book One helps students develop the fundamentals of logic, argumentation, and critical reading.

Easy-to-understand explanations of concepts are followed by examples and real-life, often humorous, discussion problems. Students learn to identify valid and invalid claims and arguments, sufficient and insufficient evidence, fact and opinion, generalizations, emotional arguments, inferences, deductions, and more.

Instruction/Answer Guide sold separately.
Critical Thinking Book 1, Teacher
Critical Thinking Book 1, Teacher
Our Price: $9.99

Grade(s): 7-12+
Activities: 70
Pages: 178

Instruction guide to accompany Critical Thinking, Book 1
Math Detective B1
Math Detective B1
Our Price: $18.99

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.
Think-A-Grams B1
Think-A-Grams B1
Our Price: $12.99

Grade(s): 7-8
Activities: 100
Pages: 104

Think-A-Grams bring together students' logical/ objective (left-brain) and random/subjective (right-brain) thinking to sharpen their language and visual skills. Students analyze the way words are written (e.g., size, position, direction) to solve each puzzle using common idioms and words.
Scratch Your Brain Algebra
Scratch Your Brain Algebra
Our Price: $19.99

Grade(s): 7-12
Activities: 132
Pages: 134

Scratch Your Brain® activities develop your child's math and problem-solving skills. These fun activities boost competence, confidence, and test scores while helping students make the transition to higher level mathematics.