本文作者以《物理课程标准》中对实验教学提出的“深入对实验过程和误差的分析”和“强化实验方案的自我设计”的两个要求优化“力的平行四边形定则”教学设计。在实验教学中就“实验细节”“”误差分析“”“实验设计”3方面进行实验教学创新,来激发学生探究物理的兴趣,增强研究物理问题的信心,从而提升学生科学思维和实验探究两方面的素养。 In this paper, the author puts forward the principle of parallel quadrilateral optimization of “two requirements for optimization” of “experimenting with experiment and error analysis” and “self-designing of experiment scheme” put forward for experiment teaching in “Physical Curriculum Standard” “Instructional design. In experimental teaching, experimental teaching innovation is carried out in the aspects of error analysis ”“ ”experimental design " to stimulate students’ interest in exploring physics and enhance their confidence in studying physical problems, thus Enhance student’s scientific thinking and experimental exploration of two aspects of literacy.