Occasionally lessons are incorrect, sometimes because the local version
of a command operates in a non-standard way.
Occasionally a lesson script does not recognize all the different
correct responses, in which case the `hint' command may be useful.
Such lessons may be skipped with the `skip' command,
but it takes some sophistication to recognize the situation.
Occasionally lessons are incorrect, sometimes because the local version
of a command operates in a non-standard way.
Occasionally a lesson script does not recognize all the different
correct responses, in which case the `hint' command may be useful.
Such lessons may be skipped with the `skip' command,
but it takes some sophistication to recognize the situation.