The Department for Education has hit out at the National Union of Teachers over proposed strike action in June, saying it will "damage the reputation of the profession".
A spokesperson added that it was up to headteachers to ensure their staff have manageable workloads.
Ministers have met frequently with the NUT and other unions and will continue to do so. Further strike action will only disrupt parents’ lives, hold back children’s education and damage the reputation of the profession.
It is important that teachers work closely with school leaders to ensure that their workload is manageable. We trust the professionalism of our headteachers to monitor their staff's workload and address any issues.
More top news
Ministers are also looking at schemes such as “lock-in agreements” to reduce the 250,000 sales that fall through annually.
Staff have racked up hundreds of thousands of dollars in fees as Robert Mueller and House and Senate committees probe Moscow’s meddling.
It is "clear" ministers cannot proceed with the current Bill, Sir Keir said, threatening to "work with all sides" to ensure revisions.