课本中有许多例题,看似平淡,实际上内涵丰富,通过对题目拓展、推广、应用,无疑会激起每位学生的思维涟漪和创新意识,能帮助解题者总结经验,发现规律,形成解法体系,并且起到举一反三,甚至还能触类旁通,有效提高学习效率.一、深阅读,识背景以教材中的习题为母题,层层展开,让学生体会 There are many examples in the textbook, which seem to be dull. In fact, they are rich in content. By expanding, promoting and applying the subject, they undoubtedly arouse the students’ thinking ripples and sense of innovation, and help the solvers to sum up their experiences, discover laws and form Solution system, and played a case in point, and even analogy, effectively improve the efficiency of learning.A deep reading, knowledge background to textbook exercises as the motif, layers, so that students understand