矢量概念是高中物理教学中引进的重要概念之一,也是高中物理难学的原因之一.在高中物理中,将有大小和方向的量称为矢量,如力、位移、速度、加速度、动量、冲量等物理量都是矢量.因此,矢量的运算在力学中占有重要的地位.在人教社新编的高中试验课本中强调了矢量的运算.矢量的运算遵循平行四边形法则或三角形法则.矢量的平行四边形法则可以用矢量的三角形法则来代替.矢量的三角形法则作图简单,线条较少,图象清晰,在讨论 The vector concept is one of the important concepts introduced in high school physics teaching and is one of the reasons why high school physics is difficult to learn. In high school physics, there are vectors of magnitude and direction called vectors, such as force, displacement, velocity, acceleration, and momentum. Impulse and other physical quantities are vectors. Therefore, the operation of vectors occupies an important position in mechanics. In the new high school textbooks of the People’s Education Society, the operation of vectors is emphasized. Vector operations follow parallelogram rules or triangle rules. Vectors The parallelogram rule can be replaced by the triangle rule of the vector. The triangle rule of the vector is simple to draw, the lines are less, the image is clear, the discussion