* Traditional Semester System: Most high schools follow a traditional semester system with two terms per academic year. This means each semester typically lasts for about 18 weeks.
* Trimester System: Some schools use a trimester system, which divides the academic year into three terms. Each trimester is shorter than a semester, lasting about 12 weeks.
* Quarter System: A less common system, some schools use a quarter system with four terms per year. Each quarter lasts about 10 weeks.
Therefore, the number of terms in a semester can be:
* 1 term (if the school has a semester system)
* 2 terms (if the school has a trimester system)
* 3 terms (if the school has a quarter system)
It's best to check with your specific high school or consult their school calendar to find out how they structure their academic year.