Mrs. Czerwicki is the detention monitor at P.S. 38. She is seen in all of the books except for "Big Nate Lives It Up."
Mrs. Czerwicki has a white, curly, frizzy wig, leaving her real hair a mystery. She is usually seen wearing a sweater.
Czerwicki is devoted and easily interested, something she hides under a sarcastic, laid back persona. Still, she is surprisingly lenient for one in her position, allowing Nate to speak up and giving him honest answers, and even considering tolerating his venture to the art studio. She is also a volunteer. She is fond of reading romance novels during detention to pass the time.
It is unknown how Czerwicki became detention monitor. Her husband took her to a hockey game for their anniversary, making her angry. They had two children, though Czerwicki seemed estranged from them. Eventually, her son was imprisoned for reasons unknown.
Shortly after her wig caught on fire, she told Nate he had broken the record of the most detention slips. This made him very excited, as he had been attempting to surpass everyone else throughout the day.
At some point prior to P.S. 38's passage to Jefferson Middle School, she told Nate that he received three detentions that week. She also gave Nate the idea for the P.S. 38 Cartooning Club.
Mrs. Czerwicki has a strained relationship with her husband. This can be proven, as he gave her Madden NFL 25 for Christmas (which she apparently did not appreciate), watched the History Channel during Valentine's Day and forgot all about the holiday, brought her to hockey game during their anniversary, and many more.
Mrs. Czerwicki once compared Nate to her son, as Nate is always in detention, and her son in in prison. Mrs. Czerwicki seems to be estranged from her daughter, since she met her boyfirend from the internet, which Mrs. Czerwicki did not appreciate
- Nate once taught her how to play table football, and she became very good at it.
- She is rated as 'miffed - it's a way of life' in Nate's 'P.S. 38 ANGERGRAPH!'
- Will tend to, not knowing it, yet about how ignorant her husband is.
- In Big Nate From the Top it was revealed she has a daughter.
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