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初中学生普遍感到物理课难学,如果我们教给学生学习物理课的基本方法,就能减轻学生的学习负担,提高学习质量。一、学好语数,垫石辅路物理课是初中学生感到难学的课程,其原因是:物理课不但有系统、严密的物理概念和知识,而且物理课与数学、语文课的知识联系也很密切。例如数学中的方次运算、小数分数混合运算、极值的讨论等知识在物理教学中经常应用。但数学知识又不能生搬硬套,例如数学中a=c/b说明a与b成反比,a与c成正比,但在物理ρ=m/V定义式中,ρ与m、V的大小无关;在I=U/R中,却有I与U成正比,I
Junior high school students generally feel difficult to learn physical lessons, if we teach students the basic methods of physics lessons, we can reduce the burden on students’ learning and improve the quality of learning. First, to learn language, matsu courses physical lesson is difficult for junior high school students to learn the course, the reason is: physical class not only systematic and rigorous physical concepts and knowledge, but also the physical class and mathematics, language class knowledge is also very close. For example, mathematics, the square operation, fractional fractional mixed operation, extremum discussion and other knowledge often used in physics teaching. For example, a = c / b in mathematics indicates that a is inversely proportional to b, and a is proportional to c. However, in the definition of physical ρ = m / V, ρ has no relation with the size of m and V; in I = U / R, there are I and U is proportional to I