You will need to draw bones of the human body for this activity. Depending on your study you can use only main bones or use smaller ones as well. But each student should get one bone at least. Have them go to the board one by one to add their bone to the whole body. In order to make this go smoothly, write a number on the back of each bone so your kids can go to the board in order of the numbers. After everyone has had a chance to place their bone, some readjusting may be necessary.