The phrase "modest teacher" is correct and usable in written English.
It can be used to describe a teacher who is humble or not boastful about their achievements or abilities.
Example: "The modest teacher always encouraged her students to take the spotlight instead of seeking recognition for herself."
Alternatives: "humble educator" or "unassuming instructor."
There is, for example, the case of the modest teacher named Aditya in "The Man With Long Hair," whose homoerotic infatuation with an itinerant actor leads him to rekindle his faded passion for his wife.
He and his wife lived off her modest teacher's salary.
While my fellow Generation Yers were out spending money on alcohol and club cover in their early 20s, I was diligently saving a small portion of my modest teacher salary to splurge on my first designer bag.
As mayor of Warsaw, Lech Kaczynski has barred gay parades, backed the death penalty and resisted pressure to adopt a more cosmopolitan style.His brother, who might in theory have become prime minister after the general election last month, has nominated a modest teacher-turned-economist, Kazimierz Marcinkiewicz, for that job instead.
Tagging along reluctantly is the bride's brother, Ian Jim Howickk), a modest geography teacher ill at ease among these braying bankers and their clashing egos.
Against the violent disapproval of her children, and all her friends — against the temper of her time and the habits of her class — she had fallen in love with Signor Piozzi, the modest music teacher she had once mocked, and she was determined to marry him.
Raising a family solely on Becky's modest middle-school teacher's income is almost impossible.
The tax increase will hit not only the classic expat working for a multinational company but also those of more modest means, including teachers.
They portray public education, and the relatively modest pensions for teachers and bus drivers and janitors, as a fatted calf ready for the knife.
It makes what, in most countries, would be considered fairly modest proposals: that teachers should no longer be allowed to sell their jobs or pass them on to their children, for instance.
For what is a very modest hourly rate, teachers are (and always have been) routinely expected to prepare and deliver lessons, produce teaching materials, mark or provide written feedback on students' work, deal with voluminous paperwork, provide educational guidance, attend meetings and training events etc.
