The term "grade class" refers to a specific group or level of students within an educational institution, typically based on their age and academic achievement. Students in the same grade class are generally considered to be at the same stage of development and have similar abilities, allowing them to learn together as a cohort. The grade class that a student is placed in may vary depending on factors such as test scores or other standardized assessments, and students typically move up to the next grade class at the end of each academic year.