This packet, the third in the series of support materials for the Houghton Mifflin Harcourt thematic units on voyagers, contains activities for learners who may struggle with the basic concepts of the lessons. Included are...

How does a nation turn into a global superpower? The 16th installment of the 22-part series on American history investigates the rise of the United States to global importance in the late nineteenth and early twentieth centuries. Groups...