Language plays a crucial role in learning. Learners are taught all subjects in their school’s language of learning and teaching (LoLT). Fluency of this language, especially when it is different to a learner’s home language, impacts on learners’ ability to understand concepts and to take part in classroom discussion. Language experts continue to test new methods of using language effectively in South Africa’s diverse classrooms. The June issue of the TIMSS SA newsletter focuses on language and learning in South African schools. Our contributors explore the importance of language for the long term educational success of South African learners.