Transitioning refers to the process of moving from one stage to another on the Demographic Transition Model (DTM). In the context of AP Human Geography, it specifically refers to countries that are shifting from stage two to stage three on the DTM.
Related terms
Stage Two: This term refers to a stage in the Demographic Transition Model where birth rates are high and death rates begin to decline due to improvements in healthcare and sanitation.
Stage Three: This term refers to a stage in the Demographic Transition Model where birth rates start declining as society becomes more industrialized, urbanized, and people have access to better education and contraception.
Demographic Transition Model (DTM): This model is used by geographers demographers to explain how population changes over time based on birth rates, death rates, and economic development. It consists of five stages.