Download or read book 20th Century: 1970s Critical Thinking Activities and Brain Teasers written by Cynthia Holzschuher and published by Teacher Created Materials. This book was released on 2014-02-01 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sharpen history students' critical-thinking skills with brain-teasing activities. Parents, students, and teachers will love these fun challenges, puzzles, and logical thinking pages. They're a great way to practice higher-order thinking skills.