This resource can be used for any age range. Also has additional information for your more advanced students to learn about muscle groups used for certain stations and which activities are aerobic and anaerobic.
11 stations which include: triceps, step ups, plank to press up, box jump, vertical jump, sit ups, bicep curls, squats, lunges, skipping, broad jump.
Easily adaptable, if you want to add a station such as using ropes or ladders etc only need to change images and explain the progression of each level. The format can stay same.
Very Detailed and easy to read.