Parental involvement in educational activities in Tanzania: understanding motivational factors

ABSTRACT

In Tanzania, the education system focuses on schools and teachers as key educators of children, while little attention is paid to the home environment. This study examines motivational factors that may influence parental involvement at home and at school, using Hoover-Dempsey and Sandler’s model of parental involvement as a theoretical framework. Participants were 580 parents of Grade 2 children attending primary schools in three districts of Dar Es Salaam. Parents were invited at school to complete a questionnaire. Regression analyses showed that parents’ expectations for children’s school success predicted home involvement, next to parents’ perceived time and energy, child invitations and parents’ self-efficacy. School involvement was predicted by perceived time and energy, and school and child invitations. In a mediation model role construction had an indirect effect on school involvement through child and school invitations and perceived time and energy. Implications for educational policy are discussed.     

Flexible and context-dependent categorization by eighteen-month-olds

One hundred 18-month-olds were tested using sequential touching and following 4 different priming contexts using sets of toys that could be simultaneously categorized at either the basic or global level. An exact expression of the expected mean sequence length for arbitrary categories was derived as a function of the number of touches made, and a finite mixture model analytic method was also used to explore individual variability in categorization. Toddlers could categorize flexibly and spontaneously selected the level of categorization as a function of the prior prime. Perceptual Variability emerged as a predictor of the level at which infants subsequently categorized. The infants were also able to classify objects as members of both basic- and global-level categories simultaneously.     

Students’ Perception of Interdisciplinary,Problem‐Based Learning in a Food Biotechnology Course

Abstract: Students’ perception of 8 criteria (rationale of the problem; interdisciplinary learning; facilitator asked essential questions; learner's skills; assessments; facilitation procedures; team's use of resources [team collaboration], and facilitator within a problem‐based learning context) were assessed for a food biotechnology course that was part of a 3rd year biotechnology program. The mean score for “perceived learner's skills” was the lowest whereas those for “facilitation” and “facilitator” were the highest. Selected qualitative comments from students were also analyzed. This study demonstrated interdisciplinary learning as the students could make meaningful connections across different science disciplines. Further investigation is needed to develop possible strategies to accommodate the challenges in making meaningful connections across science disciplines as well as to develop a defined hybrid method for analysis of students’ responses.     

The phonological awareness relation to early reading in English for three groups of simultaneous bilingual children

Reading and Writing - Phonological awareness is critical for early reading acquisition across alphabetic as well as non-alphabetic languages. The grain size of phonological awareness varies with...     

Educational reform in Singapore: from quantity to quality

In 2004, Prime Minister Lee called teachers to “teach less” so that students might “learn more”. In 2005, the Ministry of Education clarified this philosophical statement to mean transforming learning from quantity to quality—“more quality and less quantity” in education. This is in line with the national vision of ‘Thinking Schools, Learning Nation’. This policy initiative, which began in 2004, is set to change the fundamental nature of education in Singapore. This article discusses this initiative, its major implications for schools in Singapore and the challenges to be addressed in the implementation of the policy. In particular, the article discusses the issues of understanding an engaged learning paradigm, establishing signposts for the shift from quantity to quality and the difficulties of system-wide transformation. The challenge for schools is to go beyond the form of the initiative to bring real, substantial and sustainable educational change through this movement.     

Microfluidic on-chip fluorescence-activated interface control system

A microfluidic dynamic fluorescence-activated interface control system was developed for lab-on-a-chip applications. The system consists of a straight rectangular microchannel, a fluorescence excitation source, a detection sensor, a signal conversion circuit, and a high-voltage feedback system. Aqueous NaCl as conducting fluid and aqueous glycerol as nonconducting fluid were introduced to flow side by side into the straight rectangular microchannel. Fluorescent dye was added to the aqueous NaCl to work as a signal representing the interface position. Automatic control of the liquid interface was achieved by controlling the electroosmotic effect that exists only in the conducting fluid using a high-voltage feedback system. A LABVIEW program was developed to control the output of high-voltage power supply according the actual interface position, and then the interface position is modified as the output of high-voltage power supply. At last, the interface can be moved to the desired position automatically using this feedback system. The results show that the system presented in this paper can control an arbitrary interface location in real time. The effects of viscosity ratio, flow rates, and polarity of electric field were discussed. This technique can be extended to switch the sample flow and droplets automatically.     

Health benefits of Kung Fu: a systematic review

The Chinese martial arts (Kung Fu) have existed for centuries and are generally accepted as being beneficial for health without much empirical data. The aim of this systematic review was to assess the health effects of "hard" Kung Fu styles by performing electronic and manual searches of the literature. The aspects of health and the Kung Fu style examined varied between most studies; in some cases, the martial art group consisted of practitioners of other martial art styles also. Of 2103 references identified, only nine papers were eligible and reviewed. All were observational studies, observing a range of health aspects possibly related to Kung Fu training or performance. Our findings suggest that there is no evidence that Kung Fu practice is associated with the prevention or treatment of any health condition. However, as a moderate- to high-intensity form of aerobic exercise, it may confer benefits similar to those attributed to other aerobic training modalities. However, this hypothesis remains to be tested in clinical trials. Physiological benefits (e.g., aerobic capacity and bone density) may be associated with long-term Kung Fu practice. Future research in this area should adopt experimental designs, clearly identifying eligibility criteria, testing and training protocols, and include health-related outcomes and documentation of adverse events, to advance knowledge in this field.