高中生物是一门基础性的学科,但是由于部分教师的教学方法或学生的学习方法不恰当,纵使在课堂上耗费了大量的时间和精力,依然达不到很好的教学效果。新课标指出,教师应充分利用生物课堂,把提升学生科学素养、培养学生创新能力当作生物学科的教学宗旨。因此,优化生物课堂、提高教学效果就成为每位教师追求的教学目标。 High school biology is a basic subject, but because some teachers’ teaching methods or student learning methods are not appropriate, even in the classroom spent a lot of time and effort, still can not achieve good teaching results. The new curriculum standards pointed out that teachers should make full use of biological classroom, to enhance students ’scientific literacy, students’ creative ability as a biological discipline teaching purposes. Therefore, to optimize the biology classroom and improve the teaching effect has become the goal pursued by every teacher.