一、问题“容积和容积单位”是人教版小学数学五年级下册“长方体和正方体的体积”的教学内容,属于第二学段“图形与几何”板块的知识。它是在学生了解了长方体和正方体的特征,掌握了长方体和正方体表面积、体积的含义和计算,并且对体积单位及单位间的进率有了明确认识的基础上进行教学的。正因为有了体积和体积单位作基础,有老师认为容积和容 First, the question “volume and volume unit ” is the PEP fifth grade under the book “the volume of cuboids and cubes ” teaching content, belonging to the second paragraph “graphics and geometry ” plate knowledge. It learns the characteristics of cuboids and cubes, masters the meaning and calculation of cuboid and cuboid surface area and volume, and provides teaching based on a clear understanding of the rate of volume units and units. It is precisely because of the volume and volume units as a foundation, there are teachers that volume and capacity