An additional 54 classrooms will be built in schools as part of a £36 million fund to reduce infant class sizes, Education Minister Kirsty Williams has announced.
The new classrooms will be in schools with the largest infant class sizes, with high levels of deprivation and/or additional needs.
The £36m fund is made up of £16m of revenue to help recruit additional teachers. £20m will go towards building extra classrooms and learning space.
The Education Secretary said the funding will "make a real difference" for schools.
Announced in April last year, the revenue element of the grant is funding over 90 additional teachers and over 20 additional teaching assistants in schools throughout Wales.