The document discusses the three main economic sectors: primary, secondary, and tertiary. The primary sector includes jobs like farming, mining, and fishing that work directly with natural resources. The secondary sector transforms natural resources into manufactured goods, with jobs in industry, construction, and carpentry. The tertiary sector provides services, such as teaching, healthcare, public services, and personal services like hairdressing. Questions are provided to test understanding of which sector different jobs belong to, such as farmers in the primary sector and dentists in the tertiary sector. Activities include matching jobs to sectors and writing about parents' occupations.