Here's a breakdown:
In the US:
* Grammar school typically refers to elementary school (grades K-5 or K-6). There's generally no application process to enter these schools. You just go to the school closest to your home.
* There are some specialized public schools, like magnet schools, that may have entrance exams or lotteries. These schools focus on specific areas, like science, technology, arts, or languages.
In the UK:
* Grammar school refers to a type of secondary school (grades 7-11 or 7-13).
* They are selective schools, meaning they have entrance exams. You typically need to score well on these exams to be accepted.
* They are not private schools, they are funded by the government. However, they are more academic and challenging than other secondary schools.
In other parts of the world:
* The term "grammar school" may have other meanings.
So, to answer your question more clearly:
* In the US, entering a regular grammar school (elementary school) is not difficult. You simply enroll at the school in your district.
* Entering a specialized or magnet school may be more competitive.
* In the UK, entering a grammar school is quite challenging due to the entrance exams.
If you can clarify what kind of "grammar school" you're interested in, I can give you more specific information!