The Critical Thinking Co.™

This colorful 32-page book offers a collection of fun, easy-to-use detective cases for Grades 3-12+. This book—unlike the later books in the series—includes some crime cases that involve...

This colorful 32-page book offers a collection of fun, easy-to-use detective cases for Grades 4-12+. Some cases may be more challenging for younger students, but teachers and parents can always...

This colorful 32-page book offers a collection of fun, easy-to-use detective cases for Grades 4-12+. Some cases may be more challenging for younger students, but teachers and parents can always...

Editor in Chief® Beginning 1 improves students' grammar, punctuation, spelling, capitalization, and attention to detail using a standards-based thinking approach rather than drill and practice...

This 48-page book contains several of our best-selling deductive thinking puzzles. It develops the logic, reading comprehension, and mental organization skills vital to achieving higher grades and...

This engaging, colorful 152-page book teaches the most important critical thinking concepts every student should know. Many workbooks claim to teach or develop critical thinking skills, but most of...