Students learn about each of the five main functions. First, explain that the body would not have a proper structure without the bones inside of it. Bones also protect the body’s organs and bones, along with your tendons, allow your body to move. Next, explain that the skeletal system makes blood and stores important minerals. Check to see if students can remember these five major functions and have them use the eraser tool to erase the bones on the interactive whiteboard to check their responses. Show students the inside of a bone and explain each part: the periosteum, compact bone, bone marrow, and cancellous bone. Then explain how the skeleton changes. For example, you have many more bones as a baby than you do as an adult. Students then drag to label the parts of the bone. Describe the major bones of the skeleton and have students identify their joints. Give students the opportunity to find and feel the bones in their bodies.