对小学自然现行教材人教版第六册《大气压力》的导入和第九册《热空气》的一个实验提出我的建议如下: 一、《大气压力》一课的导入设计 实验(其一): 材料:注射器2只、长约30厘米的气门芯1根。 方法:用气门芯把两只注射器连在一起,并使其中一只注射器内充满空气。 提出问题:“不准用手碰充满空气的注射器,想办法使它的活塞压到底部?”学生研讨想出办法后,动手实验, The introduction of the sixth book “Atmospheric Pressure” and the ninth book “Hot Air” of the current teaching material of the primary school naturally made my recommendations are as follows: First, the introduction of atmospheric pressure lesson design experiment (first) : Material: Two syringes, one valve core about 30 cm long. Method: Connect the two syringes with a valve core and fill one of the syringes with air. Ask the question, “Do not touch the air-filled syringe with your hand and think of ways to push its piston to the bottom?” After the student seminar came up with a solution,