The influence of attention on mathematical knowledge of teachers and lecturers: a comparison

This paper reports on some findings from the project ‘Analysing the Transition from Secondary to Tertiary Education in Mathematics’. One of key variables in the school to university transition is the teacher/lecturer, and here we deal with data analysing secondary teachers’ and tertiary lecturers’ responses to four mathematics questions. Elsewhere we consider knowledge, preparedness and teaching style etc, but this paper tracks the ability to use mathematical procedures. We hypothesise that this is a function of what we pay attention to, as described in Mason’s discipline of noticing. The results reveal that many teachers and lecturers fail to notice the necessary conditions for problems that imply that procedures are not always applicable. Possible reasons for this along with implications for student learning are discussed

The school-tertiary interface in mathematics: teaching style and assessment practice

Issues arising in the transition from secondary school to tertiary mathematics study are increasingly coming under scrutiny. In this paper, we analyse two practical aspects of the school–tertiary interface: teaching style; and assessment. We present some of the findings arising from a 2-year national project in New Zealand titled “Analysing the Transition from Secondary to Tertiary Education in Mathematics” supported by the New Zealand Ministry of Education. The results provide evidence of similarities and differences between teachers and lecturers in their preferred teaching approaches and assessment strategies that contribute to a transitional gap between the school and tertiary sectors. The results also show that each group lacks a clear understanding of the issues involved in the transition from the other’s perspective, and there is a need for improved communication between the two sectors

The complex process of scaling the integration of technology enhanced learning in mainstream classrooms

The early optimism for how technology might transform teaching and learning practices in mainstream school classrooms has long faded in many countries around the world. Whilst early research findings suggested that this was due to obvious barriers such as access to the technology itself, more recent attempts to scale student-access have illuminated other factors and provided a more sound theoretical foundation for us to understanding the processes and products of scaling educational technology innovations. This keynote will use findings from key projects and initiatives to highlight what is being learned – and how this might inform future endeavours to realise a more 21st century curriculum

Research on the Concrete Dam Damage and Failure Rule under the Action of Fluid-Solid Coupling

This paper evaluates the stability of concrete dam under the action of fluid-solid coupling in the two working conditions of water level raising and rainfall intensity increasing with the method of strength reduction, and the conclusions are revealed as follows: The unstable failure of dam always starts from the slope base, the crack on the slope top and the creep slip in the slop base developed, which led to the gradual destruction of the dam and formed the slip surfaces through the dam; the safety factor of the concrete dam reduced and the potential slip surfaces moved to the inside of the dam with the water level raising; the more rainfall intensity, the larger plastic yield region and the lower safety factor will be, and the dam slip surfaces transferred from the base of slope to the inside of the slope top gradually. Keywords: Fluid-Solid Coupling; Damage Failure; Rainfall Intensity; Concrete Dam; Creep Slip; Safety Facto

Drawing the answers: Sketching to support free and probed recall by child witnesses and victims with autism spectrum disorder

The success of witness interviews in the criminal justice system depends on the accuracy of information obtained, which is a function of both amount and quality of information. Attempts to enhance witness retrieval such as mental reinstatement of context have been designed with typically developed adults in mind. In this paper, the relative benefits of mental and sketch reinstatement mnemonics are explored with both typically developing children and children with autism. Children watched a crime event video, and their retrieval of event information was examined in free and probed recall phases of a cognitive interview. As expected, typically developing children recalled more correct information of all types than children with autism during free and probed recall phases. Sketching during free recall was more beneficial for both groups in both phases in reducing the amount of incorrect items, but the relative effect of sketching on enhancing retrieval accuracy was greater for children with autism. The results indicate the benefits of choosing retrieval mnemonics that are sensitive to the specific impairments of autistic individuals, and suggest that retrieval accuracy during interviews can be enhanced, in some cases to the same level as that of typically developing individuals

Migracje zagraniczne i ich konsekwencje dla rodzin na przykładzie województwa opolskiego

Celem artykułu jest próba zdefiniowania rodziny migracyjnej oraz ocena wpływu wyjazdów zagranicznych na funkcjonowanie takiej rodziny. Przegląd literatury przedmiotu oraz przeprowadzone wywiady z rodzinami czasowo rozdzielonymi, pozwoliły na zdiagnozowanie rangi i skutków zjawiska dla rodzin z obszaru województwa opolskiego. Śląsk Opolski jest definiowany jako region migracyjny. Odpływ mieszkańców w ramach migracji wpływa zarówno na procesy demograficzne jak i społeczne. Różnice w pochodzeniu regionalnym ludności tego regionu miały zasadnicze znaczenie dla intensywności występowania emigracji i jej kierunku do czasu przystąpienia do Unii Europejskiej (Ślązacy emigrowali przede wszystkim do Niemiec Zachodnich). Po 2004 r. w migracjach zagranicznych, wśród których dominującymi stały się wyjazdy zarobkowe o charakterze czasowym w coraz większym stopniu uczestniczy ludność napływowa. Tak więc w nowych warunkach społeczno-gospodarczych doświadczenie rozłąki z osobami, które poszukują i podejmują pracę za granicą staje się wspólnym problemem rodzin zarówno wśród ludności autochtonicznej, jak i napływowej

Effectiveness of Skid Resistence of Concrete and Asphalt Pavement Surface

Cílem bakalářské práce bylo vypracovat rešerši na téma protismykových úprav tuhých i netuhých vozovek. V druhé části byla udělána analýza protismykových úprav v území města Ostravy. Analýza proběhla na vybraných úsecích, kde byla zkoumána nehodovost před a po aplikaci protismykové úpravy a její stav. Nehodovost klesla na čtyřech z pěti zkoumaných úsecích. Můžeme tedy považovat protismykové úpravy jako účinné. Stav byl vyhodnocen u dvou jako nevyhovující z nutností lokální nebo celé opravy bezpečnostní protismykové úpravy. V další části se práce zabývá technologií použití recyklovaného kameniva na protismykové úpravy cementobetonových a asfaltových vozovek. Byla zjištěna střední hloubka makrotextury povrchu pomocí odměrné metody a součinitel tření zjištěný kyvadlem. Hodnoty požadované střední hloubky makrotextury převyšují požadavek téměř o dvojnásobek. Hodnoty součinitele tření převyšují požadované hodnoty o 10 %. Recyklované kamenivo je tedy vhodné pro protismykové úpravy.The aim of the Bachelor thesis was to produce a reshuffle on the topic of anti-skid adjustments of stiff and rigid roadways. In the second part, an analysis was made of skid adjustments in the city of Ostrava. The analysis was carried out on selected sections where the accident rate before and after the application of the skid adjustment and its condition were examined. Accident rates dropped on four of the five sections studied. So we can consider skid adjustments as effective. The condition was assessed in two as non-compliant out of the need for local or entire correction of the security anti-skid adjustment. In the next section, the work deals with the technology of using recycled aggregates for anti-skid treatment of concrete and asphalt pavement surface. The mean depth of the surface macrotexture using the measuring method and the coefficient of friction found by the pendulum were detected. The values of the desired macrotexture depth exceed the requirement by almost twice. The values of the coefficient of friction exceed the required values by 10 %. Recycled aggregates are therefore suitable for anti-skid treatment.227 - Katedra dopravního stavitelstvívýborn

Comparison of Industrial Technologies for 3D Data Acquisition

Tato diplomová práce pojednává o různých principech získávání 3D dat. Zaměřena je na optické metody, které jsou v této práci podrobněji popsány. Jedná se o metodu laserové triangulace, tedy měření vzdálenosti pomocí promítaného laserového paprsku, „Time of Flight“ technologie, která měří dobu letu světla k cíli a zpět a na základě této doby vypočte skutečnou vzdálenost od měřeného předmětu, technologii fotogrammetrie, která provádí rekonstrukci 3D modelu z pořízených fotografií. Součástí práce je praktické ověření některých optických snímacích metod. Porovnání získaných mračen bodů je provedeno pomocí aplikace vytvořené v grafickém prostředí LabVIEW. Dále je pomocí technologie fotogrammetrie ověřena kalibrace a přesnost snímání na různých typech povrchů.This diploma thesis deals with various principles of 3D data acquisition. It focuses on optical methods, which are described in more detail in this work. It is a method of laser triangulation, ie measuring distance using a projected laser beam, "Time of Flight" technology, which measures the flight time of light to the target and back and calculates the actual distance from the measured object, photogrammetry technology, which performs 3D reconstruction model from the taken photos. Part of the work is a practical verification of some optical scanning methods. The comparison of the obtained point clouds is performed using an application created in the LabVIEW graphical environment. Furthermore, the calibration and accuracy of scanning on various types of surfaces is verified using photogrammetry technology.450 - Katedra kybernetiky a biomedicínského inženýrstvívelmi dobř

Influence of the Type of Asphalt Binder on the Surface Properties of the Pavement

Cílem diplomové práce bylo vypracovat rešerši na téma asfaltových pojiv. Diplomová práce obsahuje názvosloví a základní vlastnosti asfaltových pojiv. Potom se práce zabývá nanomateriály, které mohou být použity v silničním stavitelství. Diplomová práce nás seznamuje s důležitými parametry protismykových vlastností a zatřídění poruch netuhých vozovek. V praktické části je proveden monitoring povrchu vozovky, kde je zkoumána mikrotextura, makrotextura. Také je provedena vizuální prohlídka se záznamem poruch. Pro měření je vybrána komunikace rozdělena na tři úseky, které mají odlišnou obrusnou vrstvu. Na závěr se vyhodnotily všechny tři úseky a určilo se, který úsek nejvíce vyhovuje bezpečnému provozu.The aim of the thesis was to produce a research on the subject of asphalt binders. Diploma thesis contains the terminology and basic properties of asphalt binders. Then the work deals with nanomaterials that can be used in civil engineering. The thesis introduces us to important parameters of anti-skid properties and the classification of non-rigid road way faults. In the practical part, the road surface is monitored, where the microtexture, the macrotexture, is examined. A visual inspection is also carried out with a record of disturbances. For the measurements, the communication is selected divided into three sections, which have a different abrasive layer. At the end, all three sections were evaluated and the section most suited to safe operation was determined.227 - Katedra dopravního stavitelstvívýborn