求翻译：由于学生的智力水平各不相同，教师在教学中要面向全体学生，设计不同难易程度的问题和习题，让所有学生都能获得成功的体验，从而树立自信心，增强学生学习的兴趣是什么意思？

Level of students 'intellectual, the teachers in teaching for all students to design questions and problems of different degree of difficulty, so that all students have access to a successful experience, in order to foster self-confidence, and enhance students' interest in learning

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Because student's intelligence level is various, the teacher must face all student in the teaching, the design different difficulty degree question and the exercise, enables all students all to obtain the successful experience, thus the setting up self-confidence, strengthens the interest which the

Due to the students ' level of intelligence are the same, for all student teachers in teaching, design problems and exercises of varying degrees of difficulty, so that all students can achieve success experience, so as to foster self-confidence, enhancing students ' interest in learning

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