课堂教学是一种有明确目的性的认知活动,其有效性的主要标准就是教学目标的达成。课堂教学中要达成教学目标,不仅要求教师准确定位教学目标,而且还必须紧紧围绕教学目标来精心选择和组织教学内容、设计相应的教学策略。这样,才能保证教学目标落实到课堂教学中,才能有效达成教学目标。下面就以鲁教版八 Classroom teaching is a clear purpose of cognitive activities, the main criterion of its effectiveness is the teaching goal. To achieve the goal of teaching in classroom teaching, not only requires teachers to accurately locate the teaching objectives, but also must be closely around the teaching objectives to carefully choose and organize teaching content, design the appropriate teaching strategies. In this way, in order to ensure that teaching objectives into the classroom teaching, in order to effectively achieve the teaching objectives. Here to teach Shandong version eight