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小学数学教学属启蒙阶段,但在教学过程中却无处不见数学思想的存在和应用。按照皮亚杰的观点,守恒概念是一切智慧活动的必要条件,各种守恒(如物质守恒、重量守恒、长度守恒、面积守恒、体积守恒)都是智力发展到一定水平才出现的,守恒思想是重要的数学思想。下面,笔者谈谈“守恒思想”在小学数学教学中的形成。一、守恒思想在等式中的渗透4+5=2+() 12×1=()×6()×63=21×150 1.25×8=0.125×()上述题中其实就蕴含着“守恒的思想”。要使等
Elementary mathematics teaching is an enlightenment stage, but in the process of teaching, but there is always the existence and application of mathematical ideas. According to Piaget's view, the notion of conservation is a necessary condition for all intellectual activities. Conservatism (such as conservation of mass, conservation of mass, conservation of conservation of length, conservation of area, and conservation of volume) occurs only when intelligence develops to a certain level. It is an important mathematical thought. Next, I talk about “Conservative thinking ” in the formation of primary school mathematics teaching. First, the idea of conservation in the equation of infiltration 4 +5 = 2 + () 12 × 1 = () × 6 () × 63 = 21 × 150 1.25 × 8 = 0.125 × () The above problem actually contains the “Conservative thoughts.” To wait and so on