Children typically go to school for about 9 to 10 months in a year, depending on the country and school system. For example:

• In the UK, the school year includes about 190-195 school days spread over roughly 38-39 weeks of term time, which translates to around 9 months of school attendance.

• In the United States, the typical school year has about 180 school days, usually starting in September and ending in June, also approximating to around 9 months of schooling.

• In Germany, the school year runs from late August or early September to June or July, lasting around 9-10 months as well.

Overall, children usually attend school about 9 to 10 months annually, with a few variations depending on the country and specific school calendar.