I recently observed a warm-up in another PE class and thought we would give it a try! Here's a picture of fourth grade students participating here at Haisley. I am introducing this warm-up to students this week.
Gym setup: Four cones near one endline, different colors. A corresponding set of four cones (matching colors) near the other endline. Students divide into approximately even groups, behind the cones at one end of the gym.
Activity: Students move, one at a time, to the other cone using the specified skill (run, skip, gallop, slide-step, high knees, back kicks, etc.). Once they reach the other cone, they walk around the edges back to their group's start cone. Students wait until the person before them reaches the half court line before starting. It's not a race, and with built-in walking breaks, allows students to self-pace appropriately for their cardiovascular fitness level.
We usually do warm-up activities for five minutes or less. Often the length of one song is perfect, and the addition of music helps increase energy. =)