Today we discussed the new grading policies and looked at section 2.3, the Demographic transition model (DTM). Make sure you know why birth and death rates are high at the beginning and low at the end. Make sure you know why in stage two, births are high but deaths decrease. Make sure you know why in stage 3, births decrease and why deaths are still low. In addition be able to provide specific example of at least two countries for each stage of the DTM.