观察能力的高低,可以从观察活动的针对性、精密性、周密性、持久性和观察结果的正确判断、记录、描述等几个方面进行评价。 1.针对性生物实验现象是复杂多样的。观察时只有针对解决的问题,抓住物质或现象的本质特征,才能达到预期的观察目的。观察能力高的学生,能够排除干扰,分清主次,集中注意于主要现象的观察。例如观察植物细胞有丝分裂实验,视野中的气泡、异物、生长点中未分裂的 Observe the level of ability, from the observation of the pertinence, precision, confidentiality, persistence and the correct judgment of observations, records, descriptions and other aspects of evaluation. 1. Targeted biological experiments are complex and diverse phenomena. Only when the observation is directed at the solution to the problem can we grasp the essential characteristics of the material or phenomenon so as to achieve the expected observation purpose. Students with high observational ability can eliminate interference, distinguish primary and secondary, and pay attention to the observation of the main phenomena. For example, the observation of plant cell mitosis experiments, the visual field of bubbles, foreign bodies, growing point unsplit