I used this rhythm chart in my 5th grade band and orchestra classes. I printed it double sided and allowed students to write in the counts on one side, and then practice counting and clapping without counts on the other side. This was a great tool since all students had it in front of them, and it saved a ton of time. I tried to include every combination of rhythms that they will see in their first year or so of playing an instrument. Once students got the hang of the rhythms, I would give students the opportunity to choose rhythms to combine together. They all kept this sheet in their folder throughout the year and knew to always take it out for warm ups.