Chemistry teaching objectives in Italian secondary schools

Responses to a written beliefs test for 178 eighth grade students and interviews with a subset of the students are analysed to investigate students' beliefs about the tentativeness of scientific knowledge and about the autonomy and strategies appropriate for science learning. These three dimensions of beliefs are salient because they align with the image of science teaching promoted by current reform movements. Analyses focus on change in beliefs and relationships among dimensions of beliefs and between those beliefs and students' understandings of science concepts. Results show that students' beliefs do not change much during the one-semester course. Students who view scientific knowledge as tentative also try to understand science. Autonomous students do not hold the most productive learning strategies, though students with low autonomy develop significantly less coherent understandings of science concepts. Instructional implications focus on potential roles of teachers and technology in promoting productive beliefs about scientific knowledge and science learning. Implications for individualized instruction follow classroom-level implications.     

Creation of an Innovative Sustainability Science Undergraduate Degree Program: A 10-Step Process

We explain the process used at Kean University (New Jersey) to create an innovative undergraduate degree program in sustainability science. This interdisciplinary program provides students with the strong science background necessary to understand and address the opportunities associated with sustainability. We articulate seven steps taken during the first year of developing the major and three additional steps that explain its evolution. Sustainability is the primary focus of each course within the curriculum. By sharing our experiences, other institutions may be encouraged or assisted in developing a similar program.     

The Use of Representations and Argumentative and Explanatory Situations

This paper discusses the use of non-verbal representations in a modelling-based science teaching context, in which argumentative and explanatory situations occur. More specifically, we analyse how the students and teacher use representations in their discourse in modelling activities, and we discuss the relationships between the functions of these representations and the demands of the explanatory and argumentative situations that exist in that classroom. The data were collected by video recording all the classes in which a teaching sequence about intermolecular interactions was used—a topic which the students had not previously studied. In the activities, the students had to create, express, test, and discuss models in order to understand the difference between intermolecular and interatomic interactions, as well as their influences on the properties of substances. Initially, we selected excerpts of the recorded classes in which a non-verbal representation was used. Then, we used criteria to identify the argumentative and explanatory situations (previously defined), and we created categories for the functions of the representations that were used in order to analyse all the identified situations. The analysis supports conclusions indicating the relevance of the use of non-verbal representations in the construction, use, and defence of explanations. As the defence of explanations was the main context in which argumentative situations occurred in this study, our conclusions also indicate the contribution that representations make towards changing the status of the students' explanations.     

WOWW: a solution orientated approach to enhance classroom relationships and behaviour within a Primary three class

A Working on What Works (WOWW) approach was utilised over six sessions in a mainstream Scottish primary class to enhance classroom relationships and behaviours. The aim of the intervention was to manage everyday classroom problems within a natural classroom environment. WOWW incorporates positive psychology and implements a solution-focused approach. The quantitative results illustrated an improvement in the teacher ratings and class ratings for the class goals set by the class teacher, and helped the teacher to feel more confident in her class. From the qualitative comments, class teacher and pupils reported a positive experience of WOWW and noticed a difference within the classroom. In summary, WOWW influenced a positive change to relationships and behaviour within the classroom.     

Science Letters: Quantification of Helicobacter pylori levels in soil samples from public playgrounds in Spain

Helicobacter pylori are ubiquitous Gram-negative bacteria with a high estimated level of infection in the world populations, but a majority of the infected persons are asymptomatic. This pathogen has been classified by the World Health Organization as a class I carcinogen and recognized as the causal agent of most peptic ulcers and chronic gastritis that might lead to stomach cancer. Although not all the transmission pathways of these bacteria into humans have been properly identified, enough data have sugg...     

Contributions of print exposure to first and second grade oral language and reading in Chile

This study examines the contribution of print exposure to oral language (expressive vocabulary and listening comprehension) and reading (word reading and reading comprehension) in first and second grade in Chile, and tests whether the contribution of print exposure to reading comprehension is mediated by language and word reading skills. Two‐hundred and eighty one children (mean age 6.55 years) participated. Print exposure was measured with a book‐cover recognition task in first grade, and outcomes were measured both in first and second grade. Print exposure had direct effects on all outcomes in first grade and indirect effects in second grade. Effects on first grade reading comprehension were partially mediated by listening comprehension and word reading, but not vocabulary. We discuss the importance of the findings for improving reading comprehension in countries with low access to books.     

Ethical issues in listening to young children in visual participatory research

ABSTRACT

Ethical issues involving young children in research are complex and individual to each child, requiring the researcher to be reflexive and aware of the nature of the child’s participation. This paper draws on the experiences of 16 5- to 7-year-old children, transitioning from kindergarten to first grade in Chile as reported by them through visual participatory research. Integral to the ethical principles were the use of a visual participatory design, a listening framework and the child’s rights perspective. In order to be faithful to the research design proposed, different ethical guidelines were revised and followed to ensure protection, anonymity, the right to withdraw and privacy to the children deciding to get involved in the research process. Essential to this work was recognising the child as the most knowledgeable agent in her/his own experiences in order to minimise issues of power and increase children’s awareness during the data collection process. Findings from the study demonstrate different situations in which the researcher’s self-reflexivity can enhance positive outcomes related to ethical issues and young children’s ability to understand the research process, communicate meanings and jointly create new meanings through the tools provided and activities proposed. Ethical challenges and implications for future research with children are discussed.     

The internet as a new distribution channel of scientific grey literature: The case of Italian WWW servers

The enormous range of information sources and communication services available on the Internet today recalls the information explosion and information overload that characterizes this century. We are certainly facing new kinds of information and communication patterns, based on direct electronic communication between end-users among themselves and/or between end-users and information sources. Moreover, this new channel of communication provides the opportunity to distribute different types of information, which in some cases are available only in a networked environment. The aim of this article is to analyze whether this new scenario has stimulated the production and the direct distribution of grey literature as well as changing its “traditional” features. The starting point of the study are the Italian WWW servers of the National Research Council.     

The Effectiveness of Collaborative Augmented Reality in Gross Anatomy Teaching: A Quantitative and Qualitative Pilot Study

In the context of gross anatomy education, novel augmented reality (AR) systems have the potential to serve as complementary pedagogical tools and facilitate interactive, student-centered learning. However, there is a lack of AR systems that enable multiple students to engage in collaborative, team-based learning environments. This article presents the results of a pilot study in which first-year medical students (n = 16) had the opportunity to work with such a collaborative AR system during a full-day gross anatomy seminar. Student performance in an anatomy knowledge test, conducted after an extensive group learning session, increased significantly compared to a pre-test in both the experimental group working with the collaborative AR system (P < 0.01) and in the control group working with traditional anatomy atlases and three-dimensional (3D) models (P < 0.01). However, no significant differences were found between the test results of both groups. While the experienced mental effort during the collaborative learning session was considered rather high (5.13 ± 2.45 on a seven-point Likert scale), both qualitative and quantitative feedback during a survey as well as the results of a System Usability Scale (SUS) questionnaire (80.00 ± 13.90) outlined the potential of the collaborative AR system for increasing students' 3D understanding of topographic anatomy and its advantages over comparable AR systems for single-user experiences. Overall, these outcomes show that collaborative AR systems such as the one evaluated within this work stimulate interactive, student-centered learning in teams and have the potential to become an integral part of a modern, multi-modal anatomy curriculum.