The number of children being homeschooled has risen by about 40% over three years, the BBC has found.
Across the UK 48,000 children were being home-educated in 2016-17, up from about 34,000 in 2014-15.
Mental health issues and avoiding exclusion are two reasons parents gave for removing children from classrooms.
The government will publish new guidance on the "rights and responsibilities on home education" but councils want more monitoring powers.
They are concerned about the quality of the…