The teacher taught students about the classification of human life into four stages by the scholar Tamlu Jamalu. The document defined key terms and provided facts about each stage: hunter-gatherers (samood), pastoralists (t{]m«n-Ì), village dwellers (^wssP) and settled people (1mtâ). Students learned about how human lives have been categorized into stages of development through activities and discussion. They demonstrated understanding of how different types of lives are represented in the four stages of classification.