The Symmetric Property of the Equality Relation and Young Children's Ability to Solve Open Addition and Subtraction Sentences

1973 ◽  
Vol 4 (1) ◽  
pp. 45-56
Author(s):  
J. Fred Weaver

Based upon the equation form a□ b=c, coupled with addition and subtraction facts having sums between 10 and 18, an inventory consisting of 4 8-item tests was developed to investigate 1st-, 2d-, and 3d-grade pupils' ability to solve open sentences which differed with respect to several mathematical factors, only 1 of which is the focus of this informal report. Data from 135 classes in 23 schools were included in the analysis. Differences were observed between performance levels on open addition and subtraction sentences generated from the equation form a□ b=c and performance levels on similar sentences generated from the equivalent symmetric form c=a□ b. It is suggested that school mathematics programs should give more explicit attention to variations in equation or open-sentence form associated with the symmetric property of the equality relation.

2015 ◽  
Vol 27 (5) ◽  
pp. 714-738 ◽  
Author(s):  
Jorge Pereira-Moliner ◽  
Xavier Font ◽  
Juan José Tarí ◽  
Jose F. Molina-Azorin ◽  
Maria D. Lopez-Gamero ◽  
...  

Purpose – This paper aims to analyse the influence of environmental proactivity on cost and differentiation competitive advantages, and to explore the double relationship between environmental proactivity and business performance. Design/methodology/approach – The population consists of all three- to five-star hotels in Spain. A sample of 350 hotels was classified according to environmental proactivity and performance levels, employing a two-step cluster analysis. Significant differences between groups were examined. Findings – The results show two types of environmental behaviour (reactive and proactive), with proactive hotels developing significantly better on both cost and differentiation competitive advantage and achieving significantly higher performance levels. Hotels which achieve above average business performance levels are significantly more environmentally proactive. Research limitations/implications – The present paper demonstrates that environmental management is related to competitive advantages and business performance. Environmental management systems are more developed in higher category, chain-affiliated and larger hotels. This could be due to having more resources to develop their environmental capability. The environmental proactivity scale employed in this study is presented as a reference measure for hotel managers to benchmark their current practices and implement environmental improvements. Originality/value – First, measuring environmental proactivity using four managerial systems (operative, information, strategic and technical) is innovative and provides a more detailed approach to measuring environmental proactivity. Second, demonstrating a double association between environmental proactivity and performance provides fresh insights into the relationship between these variables.


2015 ◽  
Vol 15 (3) ◽  
pp. 816-829 ◽  
Author(s):  
Norman Stutzig ◽  
Bernd Zimmermann ◽  
Dirk Büsch ◽  
Tobias Siebert

2021 ◽  
Vol 11 (2) ◽  
pp. 348-359
Author(s):  
ecem altun

In this study, it was aimed to examine the effect of organizational image perceptions of university employees on organizational commitment and performance levels. The research was designed and conducted in relational survey model. The sample of the research consisted of 316 academic and administrative staff working full-time in two state and two foundation universities in Istanbul in the 2018-2019 academic year. The data were collected using the Organizational Image Scale, the Individual Performance Scale and the Organizational Commitment Scale. Data were analyzed by performing independent group t-test, correlation and regression analysis. As a result of the research, it was determined that the organizational image perceptions of university employees did not differ significantly according to demographic variables. It has been determined that the organizational commitment levels of university employees differ significantly according to their marital status, educational status, working time and staff type. It has been revealed that the performance levels of university employees differ only by marital status. It has been determined that there is a moderate and positive significant relationship between the organizational image perceptions of university employees and their organizational commitment and job performance levels. In addition, organizational image perceptions of university employees significantly predict their organizational commitment and job performance.


2018 ◽  
Vol 6 (12a) ◽  
pp. 7
Author(s):  
Songül Pektaş ◽  
Betül Akyol

The aim of this study was to investigate the effects of physical activity with music on motor development and performance in children with developmental deficiencies. The study includes twenty children with developmental deficiencies, aged between 10-15 years old. Children were classified into two groups randomly and both groups were given 1 hour of training 3 days a week for 20 weeks. Physical activity with English and Spanish verbal song was used for the first group and only physical activity for the second group. Each participant participated in shuttle, shuttle run, flexibility, standing long jump, vertical jump tests.  The fatigue parameter of children was evaluated using the Visual Analog Scale. As a result of this study, it has been shown that physical activity with music is more effective method to improve motor development and performance levels of children with developmental deficiencies.


2017 ◽  
Vol 5 (1) ◽  
pp. 35-42
Author(s):  
LIa Alfa Rosida ◽  
Sudiro Sudiro

The indicator achievement of minimum service standard (MSS) for the accuracy of distributingdrugs in Pharmacy Unit of Keluarga Sehat Hospital has not been achieved, even the incidence ofthe distributionerror from 2013 to 2016 continues to increase. The purpose of this researchwas to analyze the quality control process in the implementation of MSS in Pharmacy Unit of Keluarga Sehat Hospital. This was a qualitative research, with research subject 3pharmacy officers and 3 people of pharmacy management services.Data collectedby in-depth interview and observation of pharmaceutical performance report data and analysed by content analysis. The result of the research showed that the evaluation of pharmacy staff performance has not been implemented, because there is no performance appraisal indicator yet. Comparison was done only by comparing reports with general target, medical support manager double job resulted in no feedback to Pharmacy Unit, and so it has not supported the implementation of MSS. The Improvement of performancehas not been implementedand has notfound the concept of improvement. The new management will attempt to conduct a comparative study, including pharmacy installation into the Quality Control Group (GKM) or Problem Solving for Better Health (PSBH), find the cause of the problem and develop the policy. It can be concluded that the quality control of the MSS in the Pharmacy Unit still not going well and need to be improved especially related to quality performance appraisal and performance improvement based on the SOP.


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