A quarter of secondary school teachers questioned in a survey said they had been asked about terminations.
More than two-thirds of staff now believe information about abortions should be included in sex education classes.
It follows a Government move to improve sex and relationships advice at all ages - including compulsory lessons in primary schools for the first time.
Britain currently has the highest teenage pregnancy rate in western Europe and ministers claim better classes before puberty could halt the trend.
In the latest study, Teachers TV polled more than 800 people working in schools.
It found that the majority - 67 per cent - thought abortion advice should be featured in the national curriculum.
But eight out of 10 said discussing the topic could offend parents - and 42 per cent believed it may offend students.
In total, 24 per cent of secondary school teachers who responded to the poll said they had been asked for advice on abortion.
Data published by the Office for National Statistics last week showed that 42 girls in every 1,000 of those aged under 18 became pregnant in England and Wales in the 12 months to September 2007.
Asked the reasons for Britain's high rate, 42 per cent of staff blamed the breakdown of social values, while almost one in five said it was because of the sexualisation of young people and children. Just 16 per cent blamed sex education.
Andrew Bethell, chief executive of Teachers TV, said: "It has been 40 years since the legalisation of abortion in this country but it appears that, for the education workforce, the topic still needs to be handled sensitively to avoid causing offence to students and their parents."
The poll was published to mark a week of programming dedicated to sex and relationships on the channel. By Graeme Paton, Last Updated: 8:23AM GMT 24 Jan 2009