Master Skills Thinking Skills, grade 4, is the perfect workbook to help children master critical thinking skills necessary to succeed in school! Designed by educational experts, specifically for children in fourth grade, this essential workbook teaches children basic critical thinking concepts and skills and then offers a variety of activities for skill-and-drill practice. Featuring 128 pages of challenging lesson content with real-life applications, easy-to-understand directions and a complete answer key. Skills taught include: -Vocabulary -Main idea -Fact & opinion -Dictionary skills -Library skills The Master Skills series has drawn national acclaim for its vivid illustrations, challenging lesson content and real-life applications. It spans grades K through 6 in six key subject areas, reading comprehension, English, math, reading, spelling & writing, and thinking skills. It is the perfect workbook series to teach children learning fundamentals.