This is a great activity to engage and get the interest of your students as they begin learning about the skeleton system. First the students will complete a "Commit and Toss" paper. Without putting their name on the paper, they commit their answers to the 9 questions about the skeleton system, wad it up and toss it across the room. On your signal, every student will retrieve a wadded paper, straighten it out and wait for someone to read the first question. I have already placed around the room the letters A, B, C and D. After the question is read the student must go to the answer that is on the paper that they picked up not necessarily the one they chose earlier. You then reveal the correct answer and teach as much as you want about that fact or function of the skeleton system. Repeat until all questions are discussed. Students head back to their seats to fill in a bubble chart of the 5 functions of the skeleton. I call on volunteers for a function that they learned from the activity and as a class it is filled in. Students then put it in their interactive notebook for future reference.