Background: Over the years, the majority of the Basotho nation and many countries have known Lesotho as a country which has Sesotho and English as the only spoken languages and as medium of instruction in schools. Whereas, in reality, Lesotho has many spoken languages. Many tribes have their own spoken languages which, hitherto, have not been considered in the education sector of Lesotho. Aim: This article aimed to demonstrate the Lesotho Grade R teachers' experiences with the implementation of the mother-tongue-instruction policy in teaching pre-reading skills. Setting: This study was conducted in Lesotho at three different schools. Three Grade R teachers were chosen and studied in their respective classrooms. Methods: Employing qualitative research methods in this study, the multiple case study research design was used to explore the reality of classroom teaching practices. Document analysis, non-participatory classroom observation and semi-structured interviews and thematic content analysis were employed to generate data. Results: Teachers in early childhood education (ECE) do not implement medium of instruction policy appropriately because they are not well-informed about it. Conclusion: Grade R teachers are willing to operationalise the mother-tongue-instruction policy effectively, even though they do not have adequate knowledge of the policy.