It’s Not as Simple as Just Getting Rid of the “Worst” Ones – Unfortunately,

In March 2008, the Center for Union Facts initiated a “contest” in which they pledged “to pay the ten worst “union-protected” teachers in America $10,000 apiece to get out of the classroom.” The American Federation of Teachers and the National Education Association seem to be the real targets of the program. Edward J. McElroy, former President of the American Federation of Teachers, said, “The misnamed Center for Union Facts, an anti-union front group run by lobbyist Richard Berman, has announced the launch of a new “assault” on teachers that will include television and newspaper advertising.” The Center’s website talks at length about the difficulty in firing “bad teachers.” In addition to telling teachers how to decertify their union, the site includes the statement that “poor-performing tenured teachers are “rarely or never” terminated.” Now, two years later director Davis Guggenheim and producer Lesley Chilcott have resurrected the assault on teacher unions and tenure in “Waiting for Superman.” Current AFT President Randi Weingarten (2008) has responded by saying that “the film casts several outliers in starring roles-for example, “bad” teachers and teachers unions as the villains, and charter schools as heroes ready to save the day. The problem is that these caricatures are more fictional than factual.” While disagreeing totally with the campaign and the apparent pretense of the documentary, I have found one basic fact to be true – “poor-performing tenured teachers are “rarely or never” terminated.

Teaching grammar and testing grammar in the English primary school: The impact on teachers and teaching of the grammar element of the statutory test in Spelling, Punctuation and Grammar (SPaG) in England

In the academic year 2012-2013, Year 6 primary school pupils in England sat the first of a new statutory test in Spelling, Punctuation and Grammar (‘SPaG’) as part of their end of primary school assessments in English. This UKLA funded research examines the impact on teachers and their teaching of the grammar element of the statutory SPaG test. The aim of the research has been to evaluate the nature and the extent of changes to the teaching of grammar and to wider literacy teaching since the introduction of SPaG. The research explores teachers’ responses to teaching grammar to a statutory test format, and how teachers have implemented rapid curriculum change in their classrooms. The research explores issues of teacher knowledge, understanding, skill and enjoyment in relation to grammar, at their own level and for teaching pupils. In this research, teachers also discuss their observations of how pupils have responded to explicit grammar teaching and the grammar test. As part of this research we accessed Department for Education data on pupils by gender, ethnicity, language and deprivation in relation to SPaG attainment in 2014, to examine SPaG attainment patterns nationally. The research also analysed SPaG attainment for groups of pupils in four Local Authorities (anonymised as Castlehaven, Longcliffe, Narrowgate and Norchester), specifically in relation to pupils’ ethnicity, languages, deprivation and special educational needs. Main findings: In English primary schools, since the introduction of the statutory SPaG test: • Time spent teaching decontextualized and contextualised grammar has increased significantly; • Grammar is now taught explicitly and formally as a classroom literacy routine; • The grammar test format influences teaching content and approaches; • Teachers observe that pupils enjoy learning grammar and taking the test; • Teachers disagree about the extent to which explicit grammar teaching and testing have a positive impact on pupils’ language and literacy skills; • Teachers feel more confident about teaching grammar. Additional desk-based research indicates: • Ethnic and linguistic minority pupils perform as well as, or better than, white and native English speaking pupils on the SPaG test; • Pupil socioeconomic deprivation is the strongest indicator of low performance on SPaG; • Socioeconomically disadvantaged pupils perform better on SPaG when they are learning in classrooms that are linguistically and ethnically diverse

The Impact of Dismissal of Non-Tenured Teachers on Principals in Tennessee.

The purpose of this study was to examine the issues that principals face in making the decision or recommendation to bring about the involuntary separation of non-tenured teachers. I was concerned with identifying the emotions, feelings, conflicts, and misgivings that principals experience during this process. Related concerns were identified. They included the issues of principals using professionally ethical ways to encourage or coach teachers to resign prior to dismissal, dealing with lame duck teachers between notification and the end of the school year, and writing positive letters of recommendation for teachers they have decided not to renew. These questions were addressed through questionnaires and in-depth interviews with 18 principals from the state of Tennessee who had made recommendations to involuntarily separate non-tenured teachers from their school systems. Several themes emerged from the data and the following conclusions were reached: (1) teachers were not recommended for renewal primarily as a result of concerns about discipline, inappropriate behavior, and professionalism; (2) principals were generally able to frame their decisions in context with their vision for the school; (3) directors of school systems were generally supportive of principals making personnel decisions; (4) personnel decisions frequently involved political considerations; (5) these decisions caused stress, anxiety, and emotional concerns for the principals; (6) the state model for teacher evaluation was generally considered as being inconsequential while making personnel decisions; (7) few problems were encountered from lame duck teachers; (8) principals frequently encouraged teachers to resign prior to taking formal action to not renew them; (9) positive or benign letters of recommendation were frequently written for teachers who were not rehired; (10) a shortage of teachers has resulted in the hiring of non-renewed teachers by other school systems

The use of cluster quality for track fitting in the CSC detector

The new particle accelerators and its experiments create a challenging data processing environment, characterized by large amount of data where only small portion of it carry the expected new scientific information. Modern detectors, such as the Cathode Strip Chamber (CSC), achieve high accuracy of coordinate measurements (between 50 to 70 microns). However, heavy physical backgrounds can decrease the accuracy significantly. In the presence of such background, the charge induced over adjacent CSC strips (cluster) is different from the ideal Matheison distribution. The traditional least squares method which takes the same ideal position error for all clusters loses its optimal properties on contaminated data. A new technique that calculates the cluster quality and uses it to improve the track fitting results is suggested. The algorithm is applied on test beam data, and its performance is compared to other fitting methods. It is shown that the suggested algorithm improves the fitting performance significantly.Comment: Proceedings of 2006 IEEE NSS, San Diego, California, USA, November 200

Strong Purifying Selection at Synonymous Sites in D. melanogaster

Synonymous sites are generally assumed to be subject to weak selective constraint. For this reason, they are often neglected as a possible source of important functional variation. We use site frequency spectra from deep population sequencing data to show that, contrary to this expectation, 22% of four-fold synonymous (4D) sites in D. melanogaster evolve under very strong selective constraint while few, if any, appear to be under weak constraint. Linking polymorphism with divergence data, we further find that the fraction of synonymous sites exposed to strong purifying selection is higher for those positions that show slower evolution on the Drosophila phylogeny. The function underlying the inferred strong constraint appears to be separate from splicing enhancers, nucleosome positioning, and the translational optimization generating canonical codon bias. The fraction of synonymous sites under strong constraint within a gene correlates well with gene expression, particularly in the mid-late embryo, pupae, and adult developmental stages. Genes enriched in strongly constrained synonymous sites tend to be particularly functionally important and are often involved in key developmental pathways. Given that the observed widespread constraint acting on synonymous sites is likely not limited to Drosophila, the role of synonymous sites in genetic disease and adaptation should be reevaluated

A Connectionist account of Spanish determiner production

Copyright SpringerA Connectionist Network that models the production of simple phonologically coded Spanish Noun Phrases is described. The training data uses type/token frequencies taken directly from a Spanish child's linguistic environment. The training set increases in size in a manner which mirrors the increasing complexity of the real linguistic environment. The results show that the model can learn the task and generalise to unseen Noun Phrase combinations. Moreover the generalisation performance is of a similar nature to that of Spanish children

Is being a young researcher always a positive learning experience?

Over the last twenty years there has been considerable interest in teaching children and young people to become social science researchers to empower their voices and give them an opportunity to develop new skills. However, there is a dearth of systematic and detailed enquiry into young people’s perspectives on their feelings and experiences as they learn how to be social science researchers. We asked seven young researchers aged 12 years (1 male and 6 females), who attended an after-school research club, to complete a questionnaire about the feelings they experienced as they learned about and undertook a range of activities during the various stages of their research (e.g. the creation of a research question, the design of a questionnaire, analysis of data, and public dissemination). The young researchers also participated in follow-up, individual, semi-structured interviews when they explained their questionnaire responses in detail. Our thematic analysis, and plots of how feelings changed across research stages, suggest that in the short term the young researchers’ engagement in self-directed research was at times problematic: it produced a range of negative feelings involving worry, uncertainty, tiredness and disenchantment. However, these negative feelings were experienced alongside a range of positive feelings associated with motivation, mastery and achievement. Feelings were, therefore, not simply positive or negative, but were always mixed and diverse. Findings from group interviews conducted eight months later suggest that overall the young researchers greatly valued their experience particularly in terms of the opportunity to engage in “proper thinking” which was not always possible in the classroom. Broader implications of these findings are discussed, including the value of informal learning in after-school clubs which are outside the constraints of the English classroom curriculum

Technical Note: Novel method for water vapor monitoring using wireless communication networks measurements

International audienceWe propose a new technique that overcomes the obstacles of the existing methods for monitoring near-surface water vapor, by estimating humidity from data collected through existing wireless communication networks. Weather conditions and atmospheric phenomena affect the electromagnetic channel, causing attenuations to the radio signals. Thus, wireless communication networks are in effect built-in environmental monitoring facilities. The wireless microwave links, used in these networks, are widely deployed by cellular providers for backhaul communication between base stations, a few tens of meters above ground level. As a result, the proposed method can provide moisture observations at high temporal and spatial resolution. Further, the implementation cost is minimal, since the data used are already collected and saved by the cellular operators. In addition ? many of these links are installed in areas where access is difficult such as orographic terrain and complex topography. As such, our method enables measurements in places that have been hard to measure in the past, or have never been measured before. We present results from real-data measurements taken from two microwave links used in a backhaul cellular network that show excellent correlation to surface station humidity measurements. The measurements were taken daily in two sites, one in northern Israel (28 measurements), the other in central Israel (29 measurements).The correlation of the microwave link measurements to those of the humidity gauges were 0.9 and 0.82 for the north and central sites, respectively. The RMSE were 20.8% and 33.1% for the northern and central site measurements, respectively