浅析通过分层教学打造高中化学高效课堂

在高中化学课堂教学中实施分层次教学,有利于高中化学教师做到因材施教,实现学生的个性发展,从而调动学生学习化学知识的兴趣,提高化学学习效果,从而打造高中化学有效、高效课堂。课堂分层教学,主要体现在分类建组、分类目标、因材施教、发展性评价和作业分层,教学着眼于人在发展过程中的个别差异,把个体差异看做是资源来开发,使教学指向不同学生的最近发展区,从而使学生在原有基础上得到不同程度的发展。

Research on the credit classification of practicing qualification personnel in construction market based on self-organizing neural network

Combining with the characters of the practicing qualification personnel in construction market,evaluation method based on the self-organizing neural network is brought out to analyze the credit classification of the practicing qualification personnel. And the impact factors on the credit classification of the practicing qualification personnel,such as the number of neurons,the training steps,the dimension of neurons and the field of winning neurons are studied. Then a self-organizing competitive neural network is built. At last,a case study is conducted by taking practicing qualification personnel as an example. The research result reveals that the method can efficiently evaluate the credit of the practicing qualification personnel;thus,it could provide scientific advice to the construction enterprise to prevent relevant discreditable behaviors of some practicing qualification personnel.

物理课“配方教学”之尝试

要全面提高学生素质、全面提高教学质量,必须实施因人而异的"配方教学"。这就是要求在教学中,根据各类学生的实际出发,规定不同层次的要求,进行不同层次的教学,给予不同层次的辅导、组织不同层次的检测,使各类学生在各自的"最近发展区域内"得到充分的发展,切实提高课堂教学的有效性。