Relate to my Japanese in the first paragraph, for our school's Dream Celebration there will be a chopsticks competition. I taught my students earlier how to use them. I have developed a three step system that I think works well. I start with a basic video that shows how to grip the chopsticks (for a couple of dollars you can buy packs of 50-100 cheap chopsticks that work well). I then have students practice picking up styrofoam packing peanuts. They have basically no weight and decent texture to grip. The students practice a bit moving the peanuts around their desk and into a paper bowl. Next, comes cheese doodles. I give them 5-15 and then they get to eat. When they have mastered that I have pass out Japanese senbei (rice crackers) that are small and hard. When they can eat the senbei using chopsticks, they have graduated!
Below I have attached links to a simple chopstick video and a humorous link to a video entitled, "Chopsticks vs. Fork."