A government prepared: Organizing for math and science education reform     

Lewis M. Branscomb  Rollin B. Johnson 《Journal of Science Education and Technology》1992,1(2):95-104

The reform of K-12 math and science education will require a national, multisector, bipartisan effort sustained for at least two decades. The effort will involve all levels of government, communities, local businesses, and schools. The federal government has a pivotal role to play.  相似文献   

Understanding problem solving behavior of 6–8 graders in a debugging game     

Zhongxiu Liu  Rui Zhi  Andrew Hicks  Tiffany Barnes 《Computer Science Education》2017,27(1):1-29

Debugging is an over-looked component in K-12 computational thinking education. Few K-12 programming environments are designed to teach debugging, and most debugging research were conducted on college-aged students. In this paper, we presented debugging exercises to 6th–8th grade students and analyzed their problem solving behaviors in a programming game – BOTS. Apart from the perspective of prior literature, we identified student behaviors in relation to problem solving stages, and correlated these behaviors with student prior programming experience and performance. We found that in our programming game, debugging required deeper understanding than writing new codes. We also found that problem solving behaviors were significantly correlated with students’ self-explanation quality, number of code edits, and prior programming experience. This study increased our understanding of younger students’ problem solving behavior, and provided actionable suggestions to the future design of debugging exercises in BOTS and similar environments.  相似文献   

CFC-12系统改型至HFC-134a系统的分析     

钱斌  陈金星 《常熟理工学院学报》2002,16(2):23-24,27

从理论上分析了如何将原有的CFC-12汽车空调系统改型成HFC-134a系统，以减小对环境的破坏。  相似文献   

中国中小学英语教师资格认证体系构想     

王振先 《北京教育学院学报》2005,19(2):70-74

本文在介绍、评价和比较美、英、法、德、日等欧美发达国家和我国周边国家的中小学教师资格认证体系,及英美两国测试和教育评估认证机构设立的英语教师资格认证体系的基础上,提出我国应借鉴国际经验,完善中小学英语教师职前教育和在职培训的内容与模式,并建立一套全国统一且具有各省和直辖市特色的中小学英语教师资格准入和在职资格晋级制度。  相似文献   

Should Trump Bother with an Education Agenda?     

Chester E. Finn Jr. 《Journal of School Choice》2017,11(1):5-8

The principal opportunities awaiting the Trump administration in K–12 education are only loosely related to the candidate’s campaign comments about advancing school choice and reducing the federal Education Department. Recent passage of the Every Student Succeeds Act signals that Congress will be loath to re-open the major federal K-12 programs for amendment. Bright opportunities away in connection with the Perkins Act, special education and the Institute of Education Sciences (IES), as well as various domains--beginning with the Office for Civil Rights--that beg for strategic deregulation.  相似文献   

维生素B12在玻碳电极上的电化学行为研究     

包晓玉  陈欣  王立萍  解燕玲 《南阳师范学院学报》2004,3(9):39-41

在0．1mol／LHAc—NaAc缓冲溶液(pH=4．54)中，用循环伏安法可得到维生素B12的两个还原峰。峰电位EP1=-0．458V，EP2=-0．831V(vs．SCE)。实验表明，维生素B12在玻碳电极上的电极过程为一受吸附控制的不可逆过程。测得还原峰的电子转移系数为0．3，标准速率常数为ks=2．40s^-1。用该法测定了维生素B12针剂中维生素B12的含量，结果与标示含量相吻合。  相似文献   

基于微机的12导同步心电波形数据库的建立     

刘尚明  潘燕  李桥  孟延  孙文红  张玉华 《实验室研究与探索》2005,24(10):12-14

介绍了12导同步心电波形数据库生成系统的设计过程及180例波形数据库建立的步骤。该数据库的建立对我国心电分析和诊断自动化进程有着重要的意义。  相似文献   

新建本科院校“十二五”发展战略规划的实施     

于福君 《鞍山师范学院学报》2011,13(1):95-97

战略管理是我国高等学校管理模式变革的趋势,制定切合高校自身发展实际的规划,引领学校健康和可持续发展,已成为各高校认真思考和研究的问题。本文运用战略管理理论和SWOT分析技术对新建本科院校＂十二五＂发展战略规划的战略分析、战略选择以及战略实施等进行了探析。  相似文献   

脊髓亚急性联合变性24例临床分析     

翟月芳  李华 《泰州职业技术学院学报》2011,11(1):17-18

目的探讨脊髓亚急性联合变性（SCD）患者的临床特点、诊断及预后。方法回顾性分析24例SCD患者的临床特点、辅助检查结果、治疗及预后。结果 21例血清维生素B12水平降低。17例行脊柱MRI检查,10例有异常信号,呈条带状等T1长T2异常信号。24例患者均给予维生素B12肌肉注射,14例治愈（58.3%）,6例明显好转（25.0%）,4例效果不明显（16.7%）。结论 SCD患者主要表现为脊髓后索、侧索受累,周围神经受累亦较常见。及时应用维生素B12治疗,症状可明显好转。本病为可治性疾病,预后与病程密切相关,应重视早期诊断、治疗。  相似文献   

从课程学理论基础论台湾地区课程纲要的发展趋向     

蔡清田 《全球教育展望》2011,(3):34-38,58

本研究透过课程发展学理基础与理论趋势之探究,旨在建立台湾地区课程发展之学理基础,为下一波课程变革预作准备,针对K-12年级的中小学课程发展相关之学理基础,分别从课程理论与教育哲学、教学理论、认知心理学、文化研究、社会变迁等五个学理角度切入,先依据相关课程学理与研究进行文献探讨,分析课程发展之学理基础与理论趋势,建构适合台湾情境脉络与历史文化的课程发展理论基础,并进而针对台湾未来幼儿园、国民小学、国民中学、高中职的"K-12年级课程纲要"之修订提出建言。  相似文献