旋耕刀研究的现状与展望

总结并比较了国内外旋耕刀研究方法，提出了以降低耕作功耗和提高抛土性能为目标的新型潜土逆转旋耕刀的研究方向．     

大庆精神研究的理论视角和基本方法

大庆精神研究的理论视角和基本方法是大庆精神研究中不可回避的两个问题。从大庆精神学术史的角度看,人们开展大庆精神的研究主要是在追问大庆精神"从哪里来""是什么样""有什么用""存活在哪""怎样有用"等五个问题。这些问题就是大庆精神研究的主要理论视角。大庆精神的研究,就目前掌握的资料看,主要采用了背景材料列举的方法、基本要素分析的方法、口述史的方法、文化生态学的方法。     

明代宦官新论

明代的宦官制度一直为人所诟病,甚至很多人都将明代灭亡的原因归结为宦官,尽管牵强,但是明代宦官为害之深是汉唐两代所不曾有的,既要究其制度成因,更需要对其社会背景下的心理因素进行剖析。     

改变数学教学观念,重视数学思想教育

分析了高等数学教育在大学教育中的地位和作用;指出了数学教学的目的与目前存在的一些问题;提出应在数学教学中讲究知识性、科学性、思想性、趣味性、审美性教育,以全面提高教学质量.     

Flip or flop? Students’ perspectives of a flipped lecture in mathematics

This paper describes students’ perspectives of a one-off flipped lecture in a large undergraduate mathematics service course. The focus was on calculating matrix determinants and was designed specifically to introduce debate and argumentation into a mathematics lecture. The intention was to promote a deeper learning and understanding through engagement with the added hope of instilling some passion for the subject. During the lecture, students were asked to vote with their feet, literally moving around the lecture theatre to form groups according to their shared favourite technique for calculating matrix determinants. Group discussions were then followed by a whole class debate facilitated by the lecturers, before they wrapped up the lecture by resolving the professional disagreements that had come to light during the debate. Following the lecture, data on student perspectives was gathered using both surveys and focus groups. Within this paper, we share the data and reveal the interesting results that emerged from our analysis. Despite remaining unconvinced as to whether flipped lectures are better for learning, students reported greater engagement and increased understanding of the material covered.     

Critical perspectives of the ‘new’ difference equation solution method of Rivera-Figueroa and Rivera-Rebolledo

Recently, claims of a ‘new and straightforward’ method of solution to second-order linear difference equations have appeared in the mathematics education literature from Rivera-Figueroa and Rivera-Rebolledo. The claim of novelty is based on an assumption that ‘since the equation is worked in its canonical form’, the method within this context must be new. In addition, the assertion of straightforwardness is based on the position that ‘the solution comes naturally’ through this method, rather than artificially. In this article, we subject these claims and assumptions to closer scrutiny, examination and analysis. We note that the method has been published before, and we present the method in a more succinct form. We also discuss how the method can be extended to solve difference equations with non-constant coefficients, illustrating this via a discussion of an example.     

论制度化时期德育工作思维视角的转换

新时期历史条件的变动,必然要求和引起德育工作思维视角的重大转换。在德育工作思维的价值取向上,德育工作要从服从、服务于革命运动转向重在社会建设和人自身建设;在德育工作思维的实践基点上,德育工作应由主要面向少数先进分子转向以“广大的中间地带人群”为中心,在德育工作思维的宏观视域转换上,德育工作的视野要由局限于国度社会转向“人的世界历史性存在”;在德育工作思维的载体形式上,网络等大众媒介将逐步成为德育工作的重要阵地。     

University students’ perspectives on diagnostic testing in mathematics

Many universities issue mathematical diagnostic tests to incoming first-year students, covering a range of the basic concepts with which they should be comfortable from secondary school. As far as many lecturers are concerned, the purpose of this test is to determine the students' mathematical knowledge on entry. It should also provide an early indication of which students are likely to need additional help, and hopefully encourage such students to avail of extra support mechanisms at an early stage. However, it is not clear that students recognize these intentions and there is a fear that students who score poorly in the test will have their confidence further damaged in relation to mathematics and will be reluctant to seek help. To this end, a questionnaire was developed to explore students’ perspectives on diagnostic testing. Analysis of responses received to the questionnaire provided an interesting insight into students’ perspectives including the optimum time to conduct such a test, their views on the aims of diagnostic testing, whether they feel that testing is a good idea, and their attitudes to the support systems put in place to help those who scored poorly in the test.     

农业大学生物化学教学改革实践与思考

针对在新形势下生物化学教学中存在的问题及应采取的措施进行了探索,并对生物化学今后的教学提出了个人看法。