认识主要骨骼

识别人体骨骼中的主要骨骼（颅骨、脊椎/椎骨、胸廓、骨盆、股骨、肱骨），并解释骨骼的三大作用：支撑身体形态、保护器官、配合肌肉产生运动。

Identify major bones of the human skeleton by name (skull, spine/vertebrae, ribcage, pelvis, femur, humerus) and explain the skeleton’s three jobs: supporting the body’s shape, protecting organs, and enabling movement with muscles

学习证据 / Evidence

• 在人体图或自己身上指出并说出至少六块主要骨骼或骨骼组。
• 能解释骨骼的三大功能：支撑（让我们保持直立）、保护（颅骨保护大脑，肋骨保护心脏和肺部）、运动（骨骼与肌肉一起工作）。
• 能说明并非所有动物都有内骨骼——有些动物有壳或外骨骼。

• Name and locate at least six major bones or bone groups on a diagram or their own body
• Explain the three functions: support (holds us upright), protection (skull protects brain, ribs protect heart/lungs), movement (bones work with muscles)
• State that not all animals have internal skeletons — some have shells or exoskeletons

评估问题 / Assessment

{{name}}能指出自己身体的不同部位，并说出下面的骨骼名称吗——比如大腿里的股骨或脊柱里的椎骨？

Can {{name}} point to different parts of their body and name the bones underneath — like the femur in the thigh or the vertebrae in the spine?