The data contained here was gathered for a quantitative and qualitative-based study to investigate the attitudes, skills, and knowledge of primary and post-Primary teachers in Ireland in relation to the provision for students with English as an Additional Language (EAL). The data collection period will begin 20th January and the 20th February 2021 and was approved by UCC Social Research Ethics Committee (2021-232). A data codebook is also provided to support the interpretation of the data.