I’ve needed this page several times recently— the first basic orienting exercises for the Gary Chaffee linear patterns: RLB / RLBB / RLRLB / RLRLBB / RLRLRLB / RLRLRLBB
Mainly, playing the repeating patterns as 16th notes and triplets over a quarter note pulse. It also helps to run the some of them in their inversions— 4 and 8 note patterns as 16ths, 3 and 6 note patterns as triplets.
See also my recent page of similar exercises for some quasi-Chaffee sticking patterns.