At present, recognizing the importance of being proficient in English, it is taught primary grades onwards within the Sri Lankan education system. Lets Learn English is a series designed for primary grades; three, four and five, and lays the foundation for our childrens formal English language learning process. Therefore, a critical evaluation of this series could be considered a vital requirement to discover whether the students language requirements are satisfactorily fulfilled. Drawing on comprehensive qualitative and quantitative data through questionnaires and interviews from a study...