The Critical Thinking Co.™

This fun, highly-effective 160-page book teaches students in Grades 6-8 grammar, punctuation, spelling, capitalization, and critical reading in a standards-based thinking approach instead of the...

This fun, highly-effective 216-page book teaches students in Grades 9-12 grammar, punctuation, spelling, capitalization, and critical reading in a standards-based thinking approach instead of the...

This 128-page book uses topics and skills drawn from national math standards to prepare your students for advanced math courses and assessments that measure reasoning, reading comprehension, and...

This 56-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 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 48-page book contains several of our verbal deductive thinking puzzles. Unlike our other Mind Benders® products, these puzzles are read to students, so they develop the logic, listening, mental...

These highly-effective, literature-based critical thinking activities develop the analysis, synthesis, and vocabulary skills students need for exceptional reading comprehension. This 208-page...

These highly-effective, literature-based critical thinking activities develop the analysis, synthesis, and vocabulary skills students in Grades 3-4 need for exceptional reading comprehension. This...

These highly-effective, literature-based thinking activities develop the analysis, synthesis, and vocabulary skills students need for exceptional reading comprehension. This 192-page activity book is...

These highly-effective, literature-based critical thinking activities develop the analysis, synthesis, and vocabulary skills students need for exceptional reading comprehension. This 192-page...

The mind-building lessons and activities in this 176-page book teach topics and skills drawn from state and national science standards to prepare students for more advanced science courses and new...

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...

This 112-page book teaches students the meaning and spelling of roots, prefixes, and suffixes that are the elements used to form words in English. Learning these word elements dramatically improves...

This 249-page book teaches students the meaning and spelling of Latin roots, prefixes, and suffixes that are the elements used to form words in English. Learning these word elements dramatically...

This 256-page book teaches students the meaning and spelling of Latin and Greek roots, prefixes, and suffixes that are the elements used to form words in English. Learning these word elements...

This 288-page book teaches students the meaning and spelling of Greek roots, Latin and Greek prefixes, and Latin and Greek suffixes that are the elements used to form words in English. Learning these...