Answer:
The oxymoron explains that a kindergarten teacher has to do multiple, unrelated tasks at the same time.
Step-by-step explanation:
An oxymoron is defined as the combination of incongruent or contradictory words. It is a figure of speech, the contradiction is also known as a paradox and writers use it to add humor, irony or sarcasm to their histories.
By putting together the words control and chaos, the writer is trying to show that although it may seem that the situation in the kindergarten overwhelmed the teacher. It is not as bad as it appears.
I hope this answer helps you.