SADTU is a union of organising teachers - irrespective of race, creed, or gender - nationally throughout South Africa. The union believes that teaching more than any other profession influences who we are and also influences the societies we live in. The union believes that taking up the aims to balance the professional and trades union aspects of members lives is in the long term interests of members and society at large. It ranks amongst the largest unions affiliated to the Congress of South African Trades Unions (COSATU); and is also a member of the Education International, an international trades union coordinating body organising workers in the educational sector with over 23 million members.
SADTU was launched in Johannesburg on 6 October 1990. This was an historic occasion as it brought together a range of racially divided teacher organisations into a unitary structure with a progressive vision. In doing so SADTU challenged the legitimacy of ethnic education departments and made an important contribution to the struggle for non-racialism in South Africa. Today the union is the largest teacher`s union in the country and boasts a membership of 240,000 members spread across the 9 provinces in South Africa.