从“参观者”走向“参与者”——例谈高中生物“经典实验”教学中学生角色的转变策略

分析高中生物“经典实验”的教学价值，提出传统教学方法中存在的问题，结合案例，阐述如何通过转化学生角色，使学生从“参观者”走向“参与者”，从而提高“经典实验”教学的有效性。

为什么核桃有助于减肥

每天吃一把坚果可降低肥胖和心脏病的风险。新的研究可能会帮助解释其中的原因：核桃似乎激活了大脑中有关控制食欲和冲动的区域。在这项研究中,连续五天给9名肥胖者分别喝半杯含有大约14颗核桃的奶昔或一杯安慰剂的奶昔,它们味道和热量都相同。在他们正常饮食一个月后,参与者又返回待了5天,在此期间,安慰剂组喝了核桃奶昔,实验组给予因一种奶昔。

Promoting Iranian EFL Teachers＇ Attitudes Toward Self-Assessment Through Using Computer Technology

The application of technology in language classrooms has recently become commonplace. However, a very important set of variables, such as the teacher＇s attitudes toward the effective uses of computers in the classroom and SA （self-assessment）--on the part of the students--have been overlooked in EFL （English as a foreign language） classrooms. The goals of this study are defining teacher beliefs, discussing the relationship between teachers＇ beliefs about the application of SA and integration of computer technology, reviewing teachers＇ beliefs and computer knowledge, elaborating teachers＇ beliefs and computer technology training. To this end, a total number of 68 EFL teachers participated in this study. Participants of the experimental group included the teachers who had already been trained how to use and apply computer in their teaching, and the participants of the experimental group included the teachers who were teaching in traditional learning and teaching environments with the least access to and employ of computer. Comparing the participants in the experimental and control groups＇ attitude questionnaire showed that Iranian EFL teachers＇ positive attitudes toward SA will improve if they are engaged in computer supported learning and teaching environments

如何与众不同？

你没有想象中的那么与众不同 纽约大学的Chadly Stern博士做了一个实验。清实验的参与者填写一份问卷，针对每一个问题，参加实验者先评判自己对于句子陈述事实的认同程度。接着再看一次题目，评判其他参加实验者与其评判符合的程度，也就是要自评是否与众不同。