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一、教学目标(一)认识与记忆1.能够用字母表示数量之间的关系、运算定律和计算公式2.记住方程、方程的解,解方程的意义。(二)理解1.能说出解方程的根据。2.能说出列方程解应用题的一般步骤3.会用未知数 X 表示应用题中数量关系式中的未知量,寻找等量关系的思考方法。(三)掌握1.会用数目代替式子中的字母并求出式子的值。2.能应用加减法和乘除法的各部份之间的关系解 ax+b=c,ax-b=c、a+bx=c、a-bx=c、x÷a=b、a÷x=b 等形式的方程,掌握书写格式,会书面检验和口头检验。3.会列方程解答同级运算一或二步应用题,两级混合运算两三步应用题、相遇问题、几何初步知
First, the teaching objectives (A) understanding and memory 1. To be able to use letters to indicate the relationship between the number, the law of the law and the formula 2. Remember the equation, equation solution, solution equation. (B) to understand 1. can explain the basis for solving equations. 2. Can say the general steps of the solution to the problem of column equations 3. Will use the unknown number X that the number of applications in the relationship between the unknown amount, looking for the same amount of thinking. (C) master 1. Will use the number instead of the letter in the formula and find the value of the formula. 2. Can apply the addition and subtraction and multiplication and division of the relationship between the various parts of the solution ax + b = c, ax-b = c, a + bx = c, a-bx = c, x ÷ a = b, a ÷ x = b and other forms of equations, master writing format, written inspection and verbal inspection. 3 will be listed equations to solve the same level computing one or two-step application problems, two-level hybrid operation two or three-step application problems, encounter problems, geometry, preliminary knowledge