Name
World History (2015-16)
Jigsaw: Chapter 20 – Lessons 1 & 3
After you have been placed into groups of four, read about your assigned section of lessons 1 and
3: 1) Rainfall is Life, 2) Great Draught of the Sahel, 3) Population Growth, and 4) Addressing
the Issues. Use your textbook to answer the provided questions. Keep the problem of
desertification on your mind as you read. As you read and answer the questions, have either Mr.
Hess or Mr. Venarchik check your answers to be sure you are on the right track. When everyone
in your group is done, share out.
1) Rainfall is Life, pp. 485-488
a) Give two reasons why rainfall is so important to the people of the Transition Zone.
b) Why do the people of the Transition Zone rely so heavily on rivers such as the Niger,
Senegal, and Nile?
c) What has happened to average amount of rainfall in the Transition Zone over the past
century?
2) Great Draught of the Sahel (1970s-1980s), pp. 485-487
a) What impact did the Great Draught have on the people of the Transition Zone?
b) What impact did the Great Draught have on Lake Chad?
c) Why is Lake Volta significant to the people of the Transition Zone?
3) Population Growth, pp. 488, 497-498
a) What has happened to the population of the Transition Zone over the past century?
b) What impact has overpopulation had on the landscape of the region?
c) How has the discovery of energy resources offered new economic opportunity to the region’s
population?
4) Addressing the Issues, pp. 498-500
a) What is the goal of the Great Green Wall?
b) Explain why education is so important to addressing the issues of the Transition Zone.
c) How has the United Nations been involved in this region?