Student acceptance of the new mathematics programs

1966 ◽  
Vol 13 (1) ◽  
pp. 14-20
Author(s):  
Herbert J. Feldhake

Mention of the advantages and disadvantages of the new mathematics programs can arouse heated discussions in many segments of our society. Because of their unfamiliarity With the contents of these programs, many parents have been distrustful of these changes. Many reports about the success of the new mathematics programs have been in terms of measures of student achievement. Rarely have investigations been designed to measure the feelings and attitudes of the students toward these new programs. Rather, only a few teachers' subjective opinions of students' likes or dislikes have been mentioned about this aspect of the new mathematics.1 The discrepancy in these opinions confuses many parents about the usefulness of the new mathematics and makes the parents suspicious of its value.

2006 ◽  
Vol 3 (1) ◽  
Author(s):  
Suyato Suyato

Many researches has been done in searching the advantages and disadvantages, both Cooperative and Competitive model of teaching, each of them has marry advantages. Accordingly, the rest task of teachers is to take the advantages and eliminate its disadvantages. This article tries to propose Team Game Tournament as a means in integrating cooperative and competitive aspects of instructional activity. With its distinctive feature, TGT can combines both cooperative and competitive spirits of student as a result, hopefully, student' achievement will increase. Implementation of TGT in some right occasion is one of means in increasing instructional effectiveness.


Author(s):  
Milica Jovanović ◽  
Jelena Cvetković Crvenica

The paper deals with the comparison of curricula for the subject of Solfeggio in Serbia and several selected countries. On the basis of existing data, we compared the organization of Solfeggio teaching in Serbia and other countries of the region. The curriculum was analyzed in terms of structure, goals and subject content, teaching methods and evaluation of student achievement. The presentation and analysis of the curricula highlighted their (in)consistences, advantages and disadvantages, as well as indications of future development in the form of modernization of some curriculum areas modeled on other countries.


Author(s):  
Joanne Banks

Internationally, debates about how students with disabilities are resourced in mainstream education are complex. Spiraling costs have resulted in many funding systems calling for ‘cost control’ or systems of accountability for how funding and resources are distributed. Although inclusive education policies have created closer links between general and ‘special education’, the funding mechanisms underlying these systems still tend to remain administratively separate. The reasons for this are often historical but also relate to the consistently higher cost associated with resourcing students with disabilities compared to their peers in mainstream education. The increase in the number of students with disabilities now means that many countries are struggling to keep these costs within budget while maintaining inclusive education practices. A tension exists between those who think that students with disabilities are under-resourced, with a possible crisis emerging as schools try to cope with the increased demands, and others who argue that inclusive education cannot be achieved by simply increasing funds. The latter group focuses on the quality of leadership and the teaching staff in schools that brings about inclusive practices. The type of funding mechanism is important, and is closely linked to inclusive education. Research shows that the way in which funding and resources are allocated to students with additional needs in mainstream schools can impact the prevalence of students with a disability and inclusive practices in that school. There is little or no consensus on the most inclusive or cost-effective funding model. As a result, reform of existing models continues across different national contexts. This high level of activity is often related to a growing awareness by governments of the financial incentives and disincentives of various funding models, concern over the rising costs of special education, and the need to fulfill policy commitments to inclusive education. Internationally, funding is allocated in various ways. Input funding has traditionally been the most common funding model used, in which students with disabilities or their parents receive individualized funding according to the type of need or level of support required. The increasing prevalence of students with disabilities in mainstream education, associated rising costs of resourcing these students, and the high administrative burden of individual assessment, diagnosis, and support have led to the use of various systems that replace the sole use of input funding in mainstream education. Throughput funding is now the most commonly used funding model and is often used alongside a smaller input system. In the throughput model, block grants are provided to schools or local authorities based on certain weighted characteristics, such as the sociodemographic profile of the school or area. The output funding model, based on student achievement or learner outcomes, is often part of a funding formula in which student achievement is recognized. Each funding model has advantages and disadvantages and all claim to support inclusive education. Often forgotten in this funding debate, however, is the cost and role played by other forms of provision, such as special classes and schools. This is despite an increase in this type of segregated provision in countries with otherwise inclusive education. Critics of the continued use of segregative settings argue that they serve as an escape route for students with disabilities in systems that are struggling to implement inclusive practices in mainstream education.


Author(s):  
K. A. Fisher ◽  
M. G. L. Gustafsson ◽  
M. B. Shattuck ◽  
J. Clarke

The atomic force microscope (AFM) is capable of imaging electrically conductive and non-conductive surfaces at atomic resolution. When used to image biological samples, however, lateral resolution is often limited to nanometer levels, due primarily to AFM tip/sample interactions. Several approaches to immobilize and stabilize soft or flexible molecules for AFM have been examined, notably, tethering coating, and freezing. Although each approach has its advantages and disadvantages, rapid freezing techniques have the special advantage of avoiding chemical perturbation, and minimizing physical disruption of the sample. Scanning with an AFM at cryogenic temperatures has the potential to image frozen biomolecules at high resolution. We have constructed a force microscope capable of operating immersed in liquid n-pentane and have tested its performance at room temperature with carbon and metal-coated samples, and at 143° K with uncoated ferritin and purple membrane (PM).


Author(s):  
John G. Sheehan

The goal is to examine with high resolution cryo-SEM aqueous particulate suspensions used in coatings for printable paper. A metal-coating chamber for cryo-preparation of such suspensions was described previously. Here, a new conduction-cooling system for the stage and cold-trap in an SEM specimen chamber is described. Its advantages and disadvantages are compared to a convection-cooling system made by Hexland (model CT1000A) and its mechanical stability is demonstrated by examining a sample of styrene-butadiene latex.In recent high resolution cryo-SEM, some stages are cooled by conduction, others by convection. In the latter, heat is convected from the specimen stage by cold nitrogen gas from a liquid-nitrogen cooled evaporative heat exchanger. The advantage is the fast cooling: the Hexland CT1000A cools the stage from ambient temperature to 88 K in about 20 min. However it consumes huge amounts of liquid-nitrogen and nitrogen gas: about 1 ℓ/h of liquid-nitrogen and 400 gm/h of nitrogen gas. Its liquid-nitrogen vessel must be re-filled at least every 40 min.


Author(s):  
Vladimir Yu. Kolosov ◽  
Anders R. Thölén

In this paper we give a short overview of two TEM applications utilizing the extinction bend contour technique (BC) giving the advantages and disadvantages; especially we consider two areas in which the BC technique remains unique. Special attention is given to an approach including computer simulations of TEM micrographs.BC patterns are often observed in TEM studies but are rarely exploited in a serious way. However, this type of diffraction contrast was one of the first to be used for analysis of imperfections in crystalline foils, but since then only some groups have utilized the BC technique. The most extensive studies were performed by Steeds, Eades and colleagues. They were the first to demonstrate the unique possibilities of the BC method and named it real space crystallography, which developed later into the somewhat similar but more powerful convergent beam method. Maybe, due to the difficulties in analysis, BCs have seldom been used in TEM, and then mainly to visualize different imperfections and transformations.


2013 ◽  
Vol 23 (2) ◽  
pp. 49-61 ◽  
Author(s):  
Jamie Perry ◽  
Graham Schenck

Despite advances in surgical management, it is estimated that 20–30% of children with repaired cleft palate will continue to have hypernasal speech and require a second surgery to create normal velopharyngeal function (Bricknell, McFadden, & Curran, 2002; Härtel, Karsten, & Gundlach, 1994; McWilliams, 1990). A qualitative perceptual assessment by a speech-language pathologist is considered the most important step of the evaluation for children with resonance disorders (Peterson-Falzone, Hardin-Jones, & Karnell, 2010). Direct and indirect instrumental analyses should be used to confirm or validate the perceptual evaluation of an experienced speech-language pathologist (Paal, Reulbach, Strobel-Schwarthoff, Nkenke, & Schuster, 2005). The purpose of this article is to provide an overview of current instrumental assessment methods used in cleft palate care. Both direct and indirect instrumental procedures will be reviewed with descriptions of the advantages and disadvantages of each. Lastly, new developments for evaluating velopharyngeal structures and function will be provided.


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