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Teacher trade unions play a crucial role in ensuring the quality of education in South African schools. They achieve this through several key functions. Firstly, unions engage in advocacy for better working conditions for teachers, which directly impacts their ability to deliver quality education. This involves negotiating for improved salaries, benefits, and essential resources. Secondly, unions contribute significantly to professional development by often providing opportunities such as workshops, training sessions, and access to educational resources. These initiatives enhance teachers' skills and knowledge, leading to better instruction. Lastly, teacher trade unions exert policy influence by actively participating in policy discussions and negotiations with government and educational bodies, thereby shaping the educational landscape to benefit both teachers and students.