In the United States, the classification of students into grades often depends on the specific school district or educational institution, and there can be variations from one state to another. Generally, however, a student is classified as a tenth grader (sophomore) when they have completed the requirements for ninth grade and typically have accrued around 10 to 12 credits.
To move from one grade level to the next, most high schools require students to earn a certain number of credits each year, usually involving the completion of core subjects such as math, science, English, and social studies, along with elective courses.
If you're asking about a specific state's requirements or a particular school's policies, it's best to consult with the school's guidance office or refer to the student handbook for the most accurate information.
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