Final answer:
Winner by Submission is not intended to be performed in schools.
Step-by-step explanation:
One of the following one-act plays by William Mastrosimone that is NOT intended to be performed in schools is Winner by Submission. This play is not commonly performed in educational institutions due to its mature themes and explicit content. However, the other three options mentioned, Extremities, Bang, Bang, You're Dead, and Sleepwalk, are all one-act plays by Mastrosimone that are frequently performed in schools to address important social and emotional issues.
Learn more about William Mastrosimone's one-act plays in schools.