The phrase "all levels of school" is correct and usable in written English.
It can be used to refer to various stages of education, from elementary to high school and beyond.
Example: "The program is designed to support students at all levels of school, ensuring that everyone receives the help they need."
Alternatives: "all grades of education" or "every stage of schooling".
Means tested free school meals in all levels of school would remain.
Some questions reveal just how silly the "debate" is: Do you intend to have intelligent design taught at all levels of school, and would this include biology Ph.D. programs?
"The big picture is that over the last five years, performance has gone up in all categories of school districts, in all levels of school districts," Mr. Mills said.
The average family will spend $5,423 to prepare for the new school year, for students in all levels of school, from elementary to college, according to the national study, which asked 1,002 people about their back-to-school purchases.
Retention is a bigger problem than enrollment for all levels of school education.
All developed countries have a remarkable achievement in all levels of school education.
He has been asked by Bolivia to help create a higher education system, and Haiti is seeking advice on all levels of schooling.
But the number of people choosing to send their children to preschool, or to go to college, or to return to school for adult education, is also increasing, producing higher numbers at all levels of schooling.
She is alarmed by the degree to which the humanities are being pushed aside at all levels of schooling and in countries around the world in favor of subjects more clearly linked to economic growth.
These vexingly persistent gaps can be found across all levels of schooling, from National Assessment of Educational Progress (NAEP) scores in elementary school to SAT scores in high school to professional school tests, such as the GREs and LSATs.
She is alarmed by the degree to which the humanities are being pushed aside — at all levels of schooling and in countries around the world — in favor of subjects more clearly linked to economic growth.
