This is because of the new tests for punctuation and basic grammar.
Teachers say they have to use the lessons to teach pupils how to pass the tests, leaving no time to teach what Shakespeare and other classics are actually about.
Hundreds of thousands of 14-year-olds are due to take the tests next month, and teachers have gone as far as saying they reckon that they are "not doing anything for pupils".
According to the teachers the new tests are too long, and some want to stop their pupils from doing them unless changes are made.
But they admit this may be going against the law, so they have called for a debate to see what action they can take.