Rhythm Factory
ApRo Rhythm Factory by Scott Rogal
These products each consist of a pdf file containing 150 pages of rhythms, arranged in order of difficulty, starting at the very easy level. Each page has ten lines. They may be used in any way that suits your teaching - printed out, displayed on a smartboard, etc.
Part One covers rhythms often found in Grade 1 and 2 band literature.
Part Two covers rhythms often found in Grade 3 and higher band literature.
Students can count and clap, or play the lines on a unison note.
The sheets progress very gradually, allowing plenty of time for mastery.