Teacher's Guide 11006_HowtheWilderness_TG.pdf Era(s) This Collection Covers ERA 7: The Emergence of Modern America (1890–1930) ERA 8: The Great Depression and World War II (1929–1945) ERA 9: Postwar United States (1945 to early 1970's) ERA 10: Contemporary United States (1968 to the present) Multiple Eras Possible Instructional Strategies With this Collection TASK 8. Analyze and Compare Author PurposeTASK 17. White OutTASK 23. Identifying Claim/EvidenceTASK 24. QFT (Question Formulation Technique)TASK 25. Document Analysis/Sourcing