Critical Thinking Company

Reading Detective uses higher-order thinking and standards-based content to teach students superior reading comprehension skills and help them excel on state tests. The in-depth reading analysis...

Grades 3 - 4 Reading Detective's standards-based critical thinking activities develop the analysis, synthesis, and vocabulary skills students need for exceptional reading comprehension. The...

Grades 6 - 12 Standards-based critical thinking activities develop the analysis, synthesis, and vocabulary skills children need for exceptional reading comprehension. The activities are especially...

Improve your students' reasoning, reading and writing readiness in science with this challenging supplement. Topics are alligned with the National Science Education standards. Students will be asked...

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 7-9 This 384-page book highlights vocabulary and notation, and has examples from the history of math. What makes this book unique and different from other algebra textbooks is that it is built...

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 4-6 This book builds on the lessons learned in Understanding Fractions. Students learn multiplication and division of fractions and how to convert fractions to percent and decimals. The book...

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...