Teachers are an essential component of all education systems. In the research programme conducted by 15 education systems (Botswana, Kenya, Lesotho, Malawi, Mauritius, Mozambique, Namibia, Seychelles, South Africa, Swaziland, Tanzania (Mainland), Tanzania (Zanzibar), Uganda, Zambia, and Zimbabwe) that constitute the Southern and Eastern Africa Consortium for Monitoring Educational Quality (SACMEQ), teachers were considered to represent the most important contribution towards human resource inputs to schooling. Data relating to various characteristics of Grade 6 teachers and their pupils were collected at three time intervals: SACMEQ I Project (1995-1998), SACMEQ II Project (2000-2004), and SACMEQ III Project (2007-2010). This paper highlights the results pertaining to: (i) personal attributes of Grade 6 teachers (such as age and gender), (ii) their general education, (iii) their professional training and teaching experience, and (iv) their reading achievement scores across the 15 SACMEQ education systems.