Primary School Teachers’ Understanding of Science Process Skills in Relation to Their Teaching Qualifications and Teaching Experience

This study investigated the understanding of science process skills (SPS) of 329 science teachers from 52 primary schools selected by random sampling. The understanding of SPS was measured in terms of conceptual and operational aspects of SPS using an instrument called the Science Process Skills Questionnaire (SPSQ) with a Cronbach’s alpha reliability of 0.88. The findings showed that the teachers’ conceptual understanding of SPS was much weaker than their practical application of SPS. The teachers’ understanding of SPS differed by their teaching qualifications but not so much by their teaching experience. Emphasis needs to be given to both conceptual and operational understanding of SPS during pre-service and in-service teacher education to enable science teachers to use the skills and implement inquiry-based lessons in schools.     

An examination of the relationship between Facebook groups attached to university courses and student engagement

Educators and researchers are increasingly interested in the benefits of using Facebook groups attached to university courses, largely around connectedness, engagement and sense of belonging. However, thus far, there have been no broad-scale investigations on the potential outcomes of course-attached Facebook groups. The current study used both within- and between-group analyses on 471 participants, in order to investigate whether courses with an attached official or unofficial Facebook group was related to increased student engagement (in the categories of relationships with faculty members, peer relationships, behavioural engagement, cognitive engagement, valuing and a sense of belonging) and degree identity compared to courses without Facebook groups. Results indicated that students reported interacting more with unofficial than official Facebook groups. Courses with an official Facebook group had significantly greater staff connectedness compared to courses without an official Facebook group, while courses with either an official or unofficial Facebook group had a significantly higher peer relationships compared to courses without any Facebook group. Students with either an official or unofficial Facebook group had a significantly higher sense of belonging. Though students with either an official or unofficial Facebook group reported higher degree identity, this may be primarily due to the unofficial, rather than official Facebook groups; this difference may only exist in the unofficial, but not the official Facebook groups.     

Work models: Beyond instructional objectives

While instructional objectives have provided a cornerstone for the practice and science of instruction, they have also locked us into a lexically based conceptual system. In order to realize the interactive potential of computer-based instructional systems, we need a new way of representing performance. This paper presents the concept of a work model which is a unit of practice which allows replication of both information and interaction. In addition, the work model idea also addresses some of the fundamental problems with objectives such as their inability to capture the richness of terminal behavior or how to relate objectives to content.     

PYRAMIDS,PRISONS, AND PICTURESQUE HOUSING: A DISCUSSION ON DIVERSITY IN HIGHER EDUCATION

Part of what has given higher education its remarkable stability in recent years has been its diversity. From the point of view of policy, there are three kinds of diversity in higher education: systemic, programmatic, and structural. Binary higher education systems, representing a form of systemic diversification, have evolved as a response to the massification of higher education. However, because of a number of factors, the perceived ideal remains the traditional university. The non‐university components of binary systems tend increasingly to resemble universities through processes of academic drift. To prevent these processes which in fact negate many of the intentions of planned diversification, social esteem and prestige must be built into all sectors which will then have an interest in preserving their individual identities.     

Kaun banega crorepati —A million dollars for a mathematician

I will now embark on explaining as best as I can to the nonmathematician what the Poincaré conjecture is all about.     

Analysis of FIFA referees and assistant referees’ motivational factors towards the Multimedia Teaching Materials

The aim of our study is to improve the understanding of the different behavioral intentions of referees and assistant referees in different FIFA (International Federation of Association Football) confederations towards Multimedia Teaching Materials as learning tools. To achieve this goal, we carry out a survey of 214 elite referees and assistant referees and we propose a research model with the variables perceived usefulness, perceived ease of use, perceived enjoyment, perceived self-efficacy, multimedia instruction, previous experience with technology and self-paced learning. These variables were taken from previous educational technology research. Among these models we mainly take into account the Technology Acceptance Model, the Motivational Model and the Social Cognitive Theory. To assess the relationships between the constructs, we develop an analysis based on a Structural Equation Modeling (SEM), specifically Partial Least Squares (PLS). The results of this study confirm that referees and assistant referees are willing to use Multimedia Teaching Materials to assist them in their learning activities as long as they perceive the materials to be useful, enjoyable and easy to use and whenever the course contents are multimedia.     

What are Middle School Students Talking About During Clicker Questions? Characterizing Small-Group Conversations Mediated by Classroom Response Systems

There is a growing interest in using classroom response systems or clickers in science classrooms at both the university and K-12 levels. Typically, when instructors use this technology, students are asked to answer and discuss clicker questions with their peers. The existing literature on using clickers at the K-12 level has largely focused on the efficacy of clicker implementation, with few studies investigating collaboration and discourse among students. To expand on this work, we investigated the question: Does clicker use promote productive peer discussion among middle school science students? Specifically, we collected data from middle school students in a physical science course. Students were asked to answer a clicker question individually, discuss the question with their peers, answer the same question again, and then subsequently answer a new matched-pair question individually. We audio recorded the peer conversations to characterize the nature of the student discourse. To analyze these conversations, we used a grounded analysis approach and drew on literature about collaborative knowledge co-construction. The analysis of the conversations revealed that middle school students talked about science content and collaboratively discussed ideas. Furthermore, the majority of conversations, both ones that positively and negatively impacted student performance, contained evidence of collaborative knowledge co-construction.     

Voice-band modem: A device to transmit data over telephone networks

Over the last 40 years, there has been continuous evolution in the design of voice-band modems-starting at a data rate of 300 bits per second in the late 1950s, a rate of 33,600 bits per second has been achieved in 1995. Realising such high data rates over the voice band of 3400 Hz is a remarkable feat, made possible by combining sophisticated techniques from three disciplines, communication theory, signal processing and information theory. In this article, we briefly describe certain advanced ideas, which led to data rates very close to the channel capacity limit, established by Shannon.