再论化学实验能力

化学实验能力不能简单地等同于实验的操作技能，它是由多种成分组成的一种综合能力。实验教学中只有着眼于广义实验能力的培养，才能真正提高学生的化学实验能力，也才能真正实施素质教育，培养学生的创新精神和实践能力。     

在化学实验教学中培养学生能力

化学是一门以实验为基础的自然学科.化学实验是化学教学的重要组成部分,是培养学生能力的重要途径和有效手段.只有善于挖掘化学实验中培养学生能力的因素,切实加强实验教学,才能达到实验教学培养学生多种能力的目的.     

在化学实验教学中培养学生能力

化学是一门以实验为基础的自然学科。化学实验是化学教学的重要组成部分,是培养学生能力的重要途径和有效手段。只有善于挖掘化学实验中培养学生能力的因素,切实加强实验教学,才能达到实验教学培养学生多种能力的目的。     

小议化学教学中的学生实验

实验能力是教师开展化学教学活动的重要目标,而实验能力的培养一定离不开实验教学活动的有效开展,尤其是学生实验,毕竟实际的实验能力只有通过学生亲身的实验操作才能够获得。因此,作为教师,只有重视学生实验的开展,才能更好地培养学生的实验能力。     

高师化学教学中培养学生实验能力的研究与实践

实验能力的培养是提高高师化学教学质量的重要环节。培养学生实验能力应从以下四个方面入手:一是加强学生实验,促进知识迁移,发展实验能力;二是加强实验设计能力培养,完善实验能力的形成;三是构建合理的高师化学实验内容体系,提高学生的实验能力;四是加强学生自主实验能力的培养,使实验能力真正得到质的升华。     

巧借化学实验 提升高中生化学素养

针对当前高中化学课堂上轻视实验的现象,我们提出大力开展化学实验的设想,旨在通过化学实验,激发学生兴趣,培养学生动手能力,提升学生思维,引导学生发展创造性思维和能力,进而真正实现新课标的要求,即提升高中学生的化学素养。     

化学实验教学与创造思维的培养

在化学教学中培养学生各方面的能力最有效的做法是通过实验教学进行.教会学生实验观察,是培养创造思维的基础;教会学生进行实验分析,是培养创造思维的途径;使学生能够非常熟练而规范地进行实验操作,是培养创造思维的手段.在以上基础上让学生进行实验的改进和创新,才真正达到了培养创新思维的目标.     

在化学实验中培养学生的探究能力

化学实验探究不同于科学家的研究活动，对学生来说“探究”不是发明创造，它是在老师发挥主导，有目的，有的放矢地进行探究，教师在教学中不仅要讲好知识，更重要是把主动权交给学生，发挥他们的主观能动性，启发他们思维活动．探索新知识，而不致成为消极、被动地接受知识．生动有趣的实验，可使学生认识能力、思维能力发挥到最佳状态．教学中实验大多数为经典实验，而是以验证性实验为主，那么化学实验的探究就要侧重于创新能力培养，只有围绕创新能力培养这个中心，化学实验才能真正达到探究的目的．怎样利用现有的实验达到探究的目的呢？     

浅谈搞好化学实验教学的方法

化学实验教学可以使学生掌握化学知识,发展智力,培养分析问题、解决问题的能力,掌握从事化学实验的基本技能和方法,应注重实验报告,通过培养观察能力发展思维能力,杜绝“注入式“教学,这样才能搞好化学实验教学.     

以“蓝瓶子影响因素”为例拓展实验实践研究

在化学教学中,我们发现一些学校和教师开始重视学生实验,但是却在实验过程中忽视了学生的探究精神和化学思维的培养。学生实验更多的是让学生重复课堂上教师或者教材中的演示实验,实验内容简单、实验结论明确、实验行为被动。这不利于提升学生的探究能力,不是真正意义上的提升学生“科学探究与创新意识”素养的培养。     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

Western and Eastern culture differences in commercial field

The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity.     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

风的曲线

Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.     

团图为数的图中的闭团贯数

Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F.     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.