Search by:

Search by Book Series

Search by Book Series
Algebra I & II
Gr. 7-12+
Algebra Magic Tricks
Gr. 2-12+
Algebra Word Problems
Gr. 7-12+
Balance Benders
Gr. 2-12+
Balance Math & More!
Gr. 2-12+
Basics of Critical Thinking
Gr. 4-7
Brain Stretchers
Gr. 5-12+
Building Thinking Skills
Gr. Toddler-12+
Building Writing Skills
Gr. 3-7
Bundles - Critical Thinking
Gr. PreK-9
Bundles - Language Arts
Gr. K-8
Bundles - Mathematics
Gr. PreK-9
Bundles - Multi-Subject Curriculum
Gr. PreK-12+
Bundles - Test Prep
Gr. Toddler-12+
Can You Find Me?
Gr. PreK-1
Complete the Picture Math
Gr. 1-3
Cornell Critical Thinking Tests
Gr. 5-12+
Cranium Crackers
Gr. 3-12+
Creative Problem Solving
Gr. PreK-2
Critical Thinking Activities to Improve Writing
Gr. 4-12+
Critical Thinking Coloring
Gr. PreK-2
Critical Thinking Detective
Gr. 3-12+
Critical Thinking Tests
Gr. PreK-6
Critical Thinking for Reading Comprehension
Gr. 1-5
Critical Thinking in United States History
Gr. 6-12+
CrossNumber Math Puzzles
Gr. 4-10
Crypt-O-Words
Gr. 2-7
Crypto Mind Benders
Gr. 3-12+
Daily Mind Builders
Gr. 5-12+
Dare to Compare Math
Gr. 2-7
Developing Critical Thinking through Science
Gr. 1-8
Dr. DooRiddles
Gr. PreK-12+
Dr. Funster's
Gr. 2-12+
Editor in Chief
Gr. 2-12+
Fun-Time Phonics!
Gr. PreK-2
Half 'n Half Animals
Gr. K-4
Hands-On Thinking Skills
Gr. K-1
Inference Jones
Gr. 1-6
James Madison
Gr. 10-12+
Jumbles
Gr. 3-5
Language Mechanic
Gr. 4-7
Language Smarts
Gr. 1-4
Mastering Logic & Math Problem Solving
Gr. 6-9
Math Analogies
Gr. K-9
Math Detective
Gr. 3-8
Math Games
Gr. 3-8
Math Mind Benders
Gr. 5-12+
Math Ties
Gr. 4-8
Math Word Problems
Gr. 4-10
Mathematical Reasoning
Gr. Toddler-11
Middle School Science
Gr. 6-8
Mind Benders
Gr. PreK-12+
Mind Building Math
Gr. K-1
Mind Building Reading
Gr. K-1
Novel Thinking
Gr. 3-6
OLSAT® Test Prep
Gr. PreK-K
Organizing Thinking
Gr. 2-8
Pattern Explorer
Gr. 3-9
Practical Critical Thinking
Gr. 8-12+
Punctuation Puzzler
Gr. 3-8
Reading Detective
Gr. 3-12+
Red Herring Mysteries
Gr. 4-12+
Red Herrings Science Mysteries
Gr. 4-9
Science Detective
Gr. 3-6
Science Mind Benders
Gr. PreK-3
Science Vocabulary Crossword Puzzles
Gr. 4-6
Sciencewise
Gr. 4-12+
Scratch Your Brain
Gr. 2-12+
Sentence Diagramming
Gr. 3-12+
Smarty Pants Puzzles
Gr. 3-12+
Snailopolis
Gr. K-4
Something's Fishy at Lake Iwannafisha
Gr. 5-9
Teaching Technology
Gr. 3-12+
Tell Me a Story
Gr. PreK-1
Think Analogies
Gr. 3-12+
Think and Write
Gr. 3-8
Think-A-Grams
Gr. 4-12+
Thinking About Time
Gr. 3-6
Thinking Connections
Gr. 4-12+
Thinking Directionally
Gr. 2-6
Thinking Skills & Key Concepts
Gr. PreK-2
Thinking Skills for Tests
Gr. PreK-5
U.S. History Detective
Gr. 8-12+
Understanding Fractions
Gr. 2-6
Visual Perceptual Skill Building
Gr. PreK-3
Vocabulary Riddles
Gr. 4-8
Vocabulary Smarts
Gr. 2-5
Vocabulary Virtuoso
Gr. 2-12+
What Would You Do?
Gr. 2-12+
Who Is This Kid? Colleges Want to Know!
Gr. 9-12+
Word Explorer
Gr. 4-8
Word Roots
Gr. 3-12+
World History Detective
Gr. 6-12+
Writing Detective
Gr. 3-6
You Decide!
Gr. 6-12+

Technical Support

Need help? Please view the options below.

Please note that all software has been discontinued and software support EOL (end of life) is Dec. 2025. If you require further assistance, please call us at (800) 458-4849 ext. 205 or email us at software@criticalthinking.com. Our software support hours are Mon-Thu 8:30am-4:00pm, and Fri 9:00am-1:00pm PST.

Software Technical Support Database
Are you having technical problems with one of our software products? Access our searchable database to find frequently asked questions and answers.

Help Request Form
If you have a question regarding the use, compatibility, or operation of any of our programs, fill out this form and your question will be answered as soon as possible.