Critical Thinking Company

Grades 3-12 This 72-page book teach students how to diagram sentences so they see the underlying structure of English grammar. Diagramming sentences gives many visual and logical learners an...

Grades 5-12 Students work individually or in small teams as police detectives to solve this fun and engaging crime mystery. Students begin by learning about different types of forensic evidence such...

Grades 8-12 Book 1 focuses on American history from the time of the first European explorers interacting with Native Americans through the Reconstruction Era following the Civil War. This textbook...

Grades 8-12 Book 2 focuses on the late 1800s to the 21st century. This textbook has both primary and secondary source information. Each lesson provides a passage students must read, followed by a...

Grades 2-4 These step-by-step, fun lessons for Grades 2-4 provide a thorough introduction to fractions, beginning with the meaning of fractions and their uses and ending with simple math of...

Grades 7-9 Successful completion of this middle school geometry course will virtually guarantee a student's success in high school geometry. Although the geometric concepts of perimeter, area, and...

Grades 6-8 This book teaches and develops the math concepts and critical thinking skills necessary for success in Algebra I and future mathematics courses at the high school level. It was written...

PreK-1 Builds visual, motor, and critical thinking skills for reading, writing, and math. Develops the child's recognition of letters, words, number, and similar/dissimilar objects. It also improves...

Grades 2-3 Builds visual, motor, and critical thinking skills for reading, writing, and math. Develops the child's recognition of letters, words, number, and similar/dissimilar objects. It also...

Grades 4 - 8 This collection of riddles will entertain your students as well as build their PSAT and ACT vocabulary. Decoding the riddles can be an impetus for incorporating dynamic words into...

Grades 2-3 This 224-page book uses lessons to teach 180 words that second and third grade students should know for reading, writing, and standardized tests. Each lesson includes a story involving...

Grades 4-5 This 176-page book uses fifteen lessons to teach 150 words that fourth and fifth grade students should know for reading, writing, and standardized tests. Each lesson includes a story...