There are two levels Sube A-Beginner and Sube B-Intermediate. Spanish has
both levels available and English has only the beginner.You would choose
according to the proficiency level of the students, as opposed to grade
level. For example, the Beginner kit can be used for preschool through 5th
grade students. The Intermediate is sometimes used in 1st and 2nd dual
language  and immersion classrooms when students are very advanced. If you
have any doubts as to which kit to use, please call us and we would be happy
to help you find the right one for you.