Grade 1 is officially classified as the "Foundation" level. It follows the "Debut" grade (preliminary level) and serves as the first formal step into graded music exams.
(for study purposes):
: You will be given a 4-bar rhythmic notation to play on the snare drum or a simple groove. rockschool grade 1 drums pdf
There are many websites offering free PDF downloads of the Rockschool syllabus. However, these often come with risks: Grade 1 is officially classified as the "Foundation" level