Growth+of+global+population

To be able to identify the pattern of the growth of global population.
 * ===LO:===

__**Starter:**__
[] Draw axes on the board (time and millions) and get students to draw their predicted line of population growth between 1900 and 2050. The growth of world population over time... media type="youtube" key="9_9SutNmfFk" height="315" width="420" || __**Resources and links:**__
 * Population clock:** students not down the population at the beginning of the lesson and predict what it may be by the end
 * ===__Teaching points:__===
 * Review the //Objectives// for this section.
 * Explain how population growth rates are normally calculated.
 * Study //Figure 1// and point out the main features of the global population growth – slow rates up to first half of 20th century; acceleration during the second half, continuing into 21st century; possible deceleration between 2030 and 2050.
 * Now review the changing rates of population growth in terms of the number of years it takes the global population to increase by 1 billion. Note the minimum period of 12 years in the 1970s and that the period has begun to lengthen.
 * Explain the warning in //ResultsPlus, Watch out//! feature.
 * The critical question for the future of the world is when will the point of zero population growth be reached? Will the world’s resources have been fully exploited by then?
 * Explore why it is difficult to forecast future populations. The key factor is the birth rate.

[|ttp://www.geographyalltheway.com/in/gcse-popn/global_population.htm] || Review population clock- discuss the implications of the changes
 * ==**Plenary:**==

Brainstorm what resources might be threatened by future population growth. Try and get at least 10 different resources (clean air, minerals, space, etc.). media type="youtube" key="LF15YAvT9G0" height="349" width="560" media type="youtube" key="b98JmQ0Cc3k" height="315" width="420" || Answer //Extension activity 1, Q3// to show factors that affect sparse population. ||
 * **Homework:**
 * **Skills:**Geographical enquiry, graphical. ||
 * **Key terms**: Birth rate, population growth rate, zero population growth. ||