To ask the Secretary of State for Children, Schools and Families what proportion of state schools in England have a facility for the sound amplification of teachers’ voices fitted in the majority of classrooms. (315955)

The Department does not collect information about the number of state schools with the facility for the sound amplification of teachers’ voices.

For schools that wish to install such facilities, guidance is given in the Department’s Building Bulletin 93 “Acoustic Design of Schools”.

To ask the Secretary of State for Children, Schools and Families whether his Department has commissioned any recent research on the effects on pupil (a) learning and (b) behaviour of the sound amplification of teachers’ voices in classrooms. (315956)

The Department has not commissioned any research about the effects of the sound amplification of teachers’ voices in classrooms on pupil learning and behaviour.