First established in 1991, the Saturday School has been providing extra tuition to learners from under-resourced schools for 21 years. In 2006 the St Stithians Foundation established Thandulwazi and incorporated the Saturday School and the Teacher Development Programme.
"The mission of the Thandulwazi Maths and Science Academy is to improve the quality of Maths and Science teaching and learning, among historically disadvantaged South Africans, mainly from under-resourced schools in and around Gauteng, through targeted interventions aimed at teacher training; professional development; and the provision of quality extra tuition to FET phase learners on Saturdays."