Yes. After a lesson (where appropriate) errors
are noted on the screen. Instead of advancing to the next lesson, the
Continue button will return the student to the beginning of the same lesson and
they will be invited to repeat it.
MECS software encourages a sense of mastery to build on further complex
levels of learning.
However, you are still not "locked in" since you can return to the
Menu to make another choice of lessons. You are "in command" at