The number of adults participating in Tate’s on-site organised activities fell 25% in 2010-11, while the number of children dropped by 36%.

The organisation’s annual report put the decline down to “the loss of corporate funding for a number of programmes, and to a review of the learning division that took place during the year and affected staffing capacity in the team relative to previous years”.

Corporate funding for learning programmes fell by 28% last year, while the merger of Tate Britain and Tate Modern’s learning teams led to the loss of six positions.

A spokeswoman said the figures had also been affected by the building work caused by the redesign of Tate Modern’s Clore Learning Centre.