The store will not work correctly when cookies are disabled.
JavaScript seems to be disabled in your browser.
For the best experience on our site, be sure to turn on Javascript in your browser.
200+ Award-Winning Textbooks & Activity Books!
Reading, Writing, Math, Science, Social Studies
Search by
Grade & Subject
Search by
Title, No., or ISBN
--- Or ---
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
OLSATĀ® 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. 6-8
Word Roots
Gr. 3-12+
World History Detective
Gr. 6-12+
Writing Detective
Gr. 3-6
You Decide!
Gr. 6-12+
You have to specify at least one search term.
Word Roots Level 3
Learning the Building Blocks of Better Spelling and Vocabulary
Grades: 7-12+
Language Arts
Grades: 7-12+
Language Arts
Word Roots Level 3
4
5
5
1
Description and Features
Empowers students to acquire an unlimited vocabulary, preparing them for testing and higher education!
Customer Reviews
most user friendly I have ever used
Due to the coronavirus, I ran into troubles getting my product here. I notified this company and they immediately were on top of the issue. They were a huge help and kept me notified whenever the book was getting closer to me. They helped me through the whole time and never complained or showed uninterested with my case. I would highly recommend ordering books from this company. Plus, the layout of their material is the most user friendly I have ever read.
Review by
Xyviera Daniels
Posted on
2/17/21
N/A
My 12 year old daughter loves to begin her homeschool day doing pages from Word Roots. She can complete them independently and we check them together, learning new words each day. She is expanding her vocabulary quickly and recognizing how to discern the meaning of unfamiliar words by using what she knows about roots. I would recommend this series for budding writers wishing to build their vocabulary!
Review by
Allison
Posted on
3/11/16
Copyright Ā© 2023 The Critical Thinking Co. All rights reserved.