In battle, Constitution's Marines fired on the enemy with muskets. These guns were loaded with a lead ball and enough gun-powder to fire it, wrapped in a paper "cartridge". Marines bit off the top, and tipped a little powder into the gun's pan. They poured the rest and the ball down the yard-long barrel, ramming it home with a rod. A badly-loaded gun would not fire, so Marines drilled until they could almost do it in their sleep.
Teach your students to drill like a Marine, with directions of body movements they used - a great way to practice following directions! This Marine Drill is like a game of Simon Says. If you are interested in a similar game, try the sailorís version called Captainís Coming.