Monolingual ideologies remain alive in mainstream education, though the amount of evidence pointing to the benefits of multilingualism is increasing. Against this background, this paper aims to explore the importance of multilingual practices in multilingual classrooms, teacher input in enhancing multilingual practices in classrooms and assessment in multilingual classrooms. A systematic review of the literature was done to gather data. The findings revealed that the use of dominant national languages and/or colonial languages does not sufficiently account for the multilingual nature of the learners in the classrooms and their respective communities. Teachers need to allow any references to languages by their learners of which they have only basic knowledge or no knowledge at all. One way is to leave the role of expert to learners with home languages while taking on the role of learners of new languages. Also, in linguistically and culturally diverse classrooms, unintended bias in any assessment aspect can negatively affect learners whose home language is not the language of assessment. The study recommends that policymakers should establish official guidelines on interpreting competence aims for multilingual education, ensuring clarity and consistency across schools. Teachers should adopt collaborative teaching strategies that encourage learners to use their home languages in classroom activities. Partnerships between researchers and educators are essential for evaluating the effectiveness of multilingual pedagogies and refining teaching approaches. Assessment practices should be adapted to reflect learners’ diverse linguistic backgrounds, ensuring fair and valid evaluations of their competencies. Teacher training programmes should include modules on multilingual education, equipping educators with the necessary tools to manage linguistically diverse classrooms.
