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一些资料上要求学生解这样一类方程“３２÷４x＝４”。学生中往往出现两种解法，第一种是把原方程看成“３２÷（４×x）＝４”去解，得x＝２；第二种则是将原方程看作“（３２÷４）×x＝４”去解，得x＝０．５。教师要求学生检验方程的解。采用第一种解法的学生，先把４与x
Some data require students to solve such a type of equation “32 ÷ 4x = 4”. Students often appear two solutions, the first is the original equation as “32 ÷ (4 × x) = 4” to solve, get x = 2; the second is the original equation as “(32 ÷ 4) × x = 4 ”to solve, have x = 0.5. The teacher asks the student to test the solution to the equation. Students using the first solution, first 4 and x