数学教学质量评估系统(Mathematical Quality of Instruction)是由美国密西根大学研发的一项数学课堂评价工具,该系统从数学内容丰富度、学生行为处理、错误和不严密性及学生有意义学习参与度四个领域评估数学课堂教学质量。本文介绍数...数学教学质量评估系统(Mathematical Quality of Instruction)是由美国密西根大学研发的一项数学课堂评价工具,该系统从数学内容丰富度、学生行为处理、错误和不严密性及学生有意义学习参与度四个领域评估数学课堂教学质量。本文介绍数学教学质量评估系统基本框架、建构过程和特点,分析模型价值,探讨该评估模型所带来的启示:强调教师对数学本身知识的掌握、生成性教学和有意义学习。展开更多
Energy performance assessment on central air-conditioning system is essential to optimize operating, reduce operating costs, improve indoor environmental quality, and determine whether the retrofitting of the equipmen...Energy performance assessment on central air-conditioning system is essential to optimize operating, reduce operating costs, improve indoor environmental quality, and determine whether the retrofitting of the equipment is necessary. But it is difficult to evaluate it reasonably and comprehensively due to its complexity. A "holistic" approach was discussed to evaluate the energy performance of central air-conditioning system for an extra-large commercial building in a subtropical city. All procedures were described in detail, including field investigation method, field measurement instruments, data processing and data analyzing. The main factors affecting energy consumption of air-conditioning system were analyzed and the annual cooling-energy use intensity of this building was calculated and also compared with other shopping malls and other types of buildings in Guangzhou. And COP(coefficient of performance) of chiller, water transfer factor of chilled water system and cooling water system were taken into consideration. At last, the thermal comfort and indoor air quality issues were addressed. The results show that the chilled water pumps are over-sized and the indoor environmental quality should be improved. The purpose of this work is to provide reference for energy performance assessment method for air-conditioning system.展开更多
文摘数学教学质量评估系统(Mathematical Quality of Instruction)是由美国密西根大学研发的一项数学课堂评价工具,该系统从数学内容丰富度、学生行为处理、错误和不严密性及学生有意义学习参与度四个领域评估数学课堂教学质量。本文介绍数学教学质量评估系统基本框架、建构过程和特点,分析模型价值,探讨该评估模型所带来的启示:强调教师对数学本身知识的掌握、生成性教学和有意义学习。
基金Project(2011B061200043)supported by the Guangdong Provincial Department of Science and Technology,China
文摘Energy performance assessment on central air-conditioning system is essential to optimize operating, reduce operating costs, improve indoor environmental quality, and determine whether the retrofitting of the equipment is necessary. But it is difficult to evaluate it reasonably and comprehensively due to its complexity. A "holistic" approach was discussed to evaluate the energy performance of central air-conditioning system for an extra-large commercial building in a subtropical city. All procedures were described in detail, including field investigation method, field measurement instruments, data processing and data analyzing. The main factors affecting energy consumption of air-conditioning system were analyzed and the annual cooling-energy use intensity of this building was calculated and also compared with other shopping malls and other types of buildings in Guangzhou. And COP(coefficient of performance) of chiller, water transfer factor of chilled water system and cooling water system were taken into consideration. At last, the thermal comfort and indoor air quality issues were addressed. The results show that the chilled water pumps are over-sized and the indoor environmental quality should be improved. The purpose of this work is to provide reference for energy performance assessment method for air-conditioning system.
