Drivers of teachers’ intentions to use mobile applications to teach science     

Ateş  Hüseyin  Garzón  Juan 《Education and Information Technologies》2022,27(2):2521-2542

Education and Information Technologies - Using mobile applications in science education has proven to be effective as it adds multiple benefits including learning gains, motivation to learn, and...  相似文献   

Mexican Immigrant Students' Schooling Experiences and the Construction of Disengagement in Mathematics Learning Contexts     

Filiberto Barajas-López 《Journal of Latinos & Education》2014,13(1):14-32

Through an ethnographic and narrative inquiry approach, this study draws attention to the plight of 4 Mexican immigrant high school students and their pursuit of education and mathematics learning. Their elementary school stories and experiences show a deep relationship between the learning contexts in which these students largely do school (i.e., an English learner context) and the nature of students' relationships (or lack thereof) with teachers and their process of disengagement from mathematics learning and school. Doing school is used to convey a key distinction from simply attending school. Attending school assumes uniformity/neutrality in how students might experience schooling and is a passive way of describing student participation in school. Doing school implies that students make sense of and respond to their schooling experiences in different ways and accounts for how these experiences are shaped and/or influenced by other forces (e.g., structural forces, social forces) in and out of school.  相似文献   

The Power of the Pen: Writing Mentorship and Chicana/o M.A. Students     

Genevieve M. Negrón-Gonzales 《Journal of Latinos & Education》2014,13(1):62-70

This article draws on my experience as an adjunct professor in the Master's program of the Department of Mexican-American Studies at a large public university in California. Seeing my students’ struggles with writing, I conceived of a set of practices of writing mentorship anchored by a series of writing workshops held in Summer 2012. In this article, I document the pedagogy and content of these writing workshops in order to think about the unique struggles and opportunities Chicana/o Master's students face in the writing process and to provide an outline for other instructors interested in developing a practice of writing mentorship.  相似文献   

Developing an audiovisual notebook as a self‐learning tool in histology: Perceptions of teachers and students          下载免费PDF全文

Antonio Campos‐Sánchez  Juan‐Antonio López‐Núñez  Giuseppe Scionti  Ingrid Garzón  Miguel González‐Andrades  Miguel Alaminos  Tomás Sola 《Anatomical sciences education》2014,7(3):209-218

Videos can be used as didactic tools for self‐learning under several circumstances, including those cases in which students are responsible for the development of this resource as an audiovisual notebook. We compared students' and teachers' perceptions regarding the main features that an audiovisual notebook should include. Four questionnaires with items about information, images, text and music, and filmmaking were used to investigate students' (n = 115) and teachers' perceptions (n = 28) regarding the development of a video focused on a histological technique. The results show that both students and teachers significantly prioritize informative components, images and filmmaking more than text and music. The scores were significantly higher for teachers than for students for all four components analyzed. The highest scores were given to items related to practical and medically oriented elements, and the lowest values were given to theoretical and complementary elements. For most items, there were no differences between genders. A strong positive correlation was found between the scores given to each item by teachers and students. These results show that both students' and teachers' perceptions tend to coincide for most items, and suggest that audiovisual notebooks developed by students would emphasize the same items as those perceived by teachers to be the most relevant. Further, these findings suggest that the use of video as an audiovisual learning notebook would not only preserve the curricular objectives but would also offer the advantages of self‐learning processes. Anat Sci Educ 7: 209–218. © 2013 American Association of Anatomists.  相似文献   

Beyond Punnett Squares: Student Word Association and Explanations of Phenotypic Variation through an Integrative Quantitative Genetics Unit Investigating Anthocyanin Inheritance and Expression in Brassica rapa Fast Plants     

Janet M. Batzli  Amber R. Smith  Paul H. Williams  Seth A. McGee  Katalin Dósa  Jesse Pfammatter 《CBE life sciences education》2014,13(3):410-424

Genetics instruction in introductory biology is often confined to Mendelian genetics and avoids the complexities of variation in quantitative traits. Given the driving question “What determines variation in phenotype (Pv)? (Pv=Genotypic variation Gv + environmental variation Ev),” we developed a 4-wk unit for an inquiry-based laboratory course focused on the inheritance and expression of a quantitative trait in varying environments. We utilized Brassica rapa Fast Plants as a model organism to study variation in the phenotype anthocyanin pigment intensity. As an initial curriculum assessment, we used free word association to examine students’ cognitive structures before and after the unit and explanations in students’ final research posters with particular focus on variation (Pv = Gv + Ev). Comparison of pre- and postunit word frequency revealed a shift in words and a pattern of co-occurring concepts indicative of change in cognitive structure, with particular focus on “variation” as a proposed threshold concept and primary goal for students’ explanations. Given review of 53 posters, we found ∼50% of students capable of intermediate to high-level explanations combining both Gv and Ev influence on expression of anthocyanin intensity (Pv). While far from “plug and play,” this conceptually rich, inquiry-based unit holds promise for effective integration of quantitative and Mendelian genetics.  相似文献   

Active relatives and health-related physical fitness in European adolescents: The HELENA Study     

M Martín-Matillas  FB Ortega  JR Ruiz  D Martínez-Gómez  G Vicente-Rodríguez  A Marcos  L Béghin  A Kafatos  M González-Gross  M Zaccaria  D Molnár  S De Henauw  M Sjöström  LA Moreno  MJ Castillo On Behalf Of The Helena Study 《Journal of sports sciences》2012,30(13):1329-1335

Abstract High physical fitness in childhood and adolescence is positively associated with favourable health-related outcomes. Our aim was to examine the relationship between relatives' (father, mother, brother, sister, and best friend) physical activity engagement and encouragement on adolescents' physical fitness. Adolescents were part of the HELENA study, a multi-centre study conducted in 10 cities from nine European countries in 2006-2008. Participants were 3288 adolescents (48% boys, 52% girls) aged 12.5-17.5 years with valid data on at least one of the three fitness variables studied: muscular strength (standing long jump), speed/agility (4×10 m shuttle run), and cardiorespiratory fitness (20 m shuttle run). The adolescents reported their relatives' physical activity engagement and encouragement. Analysis of covariance showed that relatives' physical activity engagement (father, mother, brother, and best friend) was positively related to cardiorespiratory fitness (P?相似文献   

Influence of regression model and incremental test protocol on the relationship between lactate threshold using the maximal-deviation method and performance in female runners     

Machado FA  Nakamura FY  Moraes SM 《Journal of sports sciences》2012,30(12):1267-1274

This study examined the influence of the regression model and initial intensity of an incremental test on the relationship between the lactate threshold estimated by the maximal-deviation method and the endurance performance. Sixteen non-competitive, recreational female runners performed a discontinuous incremental treadmill test. The initial speed was set at 7 km · h?1, and increased every 3 min by 1 km · h?1 with a 30-s rest between the stages used for earlobe capillary blood sample collection. Lactate-speed data were fitted by an exponential-plus-constant and a third-order polynomial equation. The lactate threshold was determined for both regression equations, using all the coordinates, excluding the first and excluding the first and second initial points. Mean speed of a 10-km road race was the performance index (3.04 ± 0.22 m · s?1). The exponentially-derived lactate threshold had a higher correlation (0.98 ≤ r ≤ 0.99) and smaller standard error of estimate (SEE) (0.04 ≤ SEE ≤ 0.05 m · s?1) with performance than the polynomially-derived equivalent (0.83 ≤ r ≤ 0.89; 0.10 ≤ SEE ≤ 0.13 m · s?1). The exponential lactate threshold was greater than the polynomial equivalent (P < 0.05). The results suggest that the exponential lactate threshold is a valid performance index that is independent of the initial intensity of the incremental test and better than the polynomial equivalent.  相似文献   

Generation of virtual models of cultural heritage     

Amparo Núñez Andrés  Felipe Buill Pozuelo  Joaquín Regot Marimón  Andrés de Mesa Gisbert 《Journal of Cultural Heritage》2012,13(1):103-106

Different techniques and tools currently exist to generate three-dimensional models of small elements, buildings and cities. Apart from being easier to interpret than two-dimensional drawings, these models facilitate data necessary for reconstruction projects, preservation or rehabilitation of the architectural or archaeological heritage. Traditional surveying only enables us to obtain discrete information of the characteristic lines that define each surface, edge, slope change etc. whereas work with massive capture techniques allows us to obtain continuous points of the surfaces. Photogrammetry or laser scanning combined with conventional photography provides information of the building in addition to its geometry. We carried out a review of the different techniques showing the advantages and disadvantages of each technique as well as the information that can be obtained by applying these techniques to the survey of the great Gate of Antioch in the town of Aleppo, declared a World Heritage Site by UNESCO in 1986, in Syria.  相似文献   

Training and psychosocial patterns during the early development of Portuguese national team athletes     

André Barreiros  Jean Côté  António Manuel Fonseca 《High Ability Studies》2013,24(1):49-61

This study explored the early development of expert athletes compared to a group of athletes that did not achieve an expert level of performance despite being involved in youth events with their national squads. In particular, the activities, training patterns, and psychosocial influences that characterized their paths in competitive sports were examined. Male and female participants (N?=?42) from different sports were interviewed. Overall, athletes showed several commonalities. However, experts were selected to national squads later and also started thinking about investing in becoming elite athletes later. Non-experts revealed more parental pressure and less individual training with coaches.  相似文献   

The chameleon on a tartan rug: adaptations of three academic developers’ professional identities     

Barbara Kensington-Miller  Joanna Renc-Roe  Susan Morón-García 《International Journal for Academic Development》2013,18(3):279-290

This paper builds on discussions of academic developers’ identity experienced as a discomfiting, troubled, and often marginal space. Three experienced academic developers, located in research-intensive institutions in three different countries, using auto-ethnographic writing and a shared narrative inquiry, explore moments of congruence and conflict. While there are elements that sustain them in their job, the categorisation of their role can impact on their ability to do their job, undermining their credibility. This can prevent them from engaging in research that could enrich practice in their institutions and inform institutional strategy or change the culture in teaching and learning. Instead they are forced into discomfit: having to defend their right to be involved in the institutional discussions. The most worrying issue is the pervasive trend in the change of academic developers’ status (from tenure-track academic peers to professionals).  相似文献