The teacher is so distracted. It seems like he doesn't even know how many students are in the class.El maestro está tan distraído. Parece que ni siquiera sabe cuántos estudiantes hay en la clase.
It's so impressive that you're already taking calculus. How many students are in the class?Es bastante impresionante que ya estés tomando clases de cálculo. ¿Cuántos alumnos hay en la clase?
Do you get a lot of attention from your teacher? How many students are in the class?¿Te presta mucha atención tu maestra? ¿Cuántos alumnos están en la clase?