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Esia-Donkoh, K., & Baffoe, S. (2018). Instructional supervisory practices of headteachers and teacher motivation in public basic schools in Anomabo education circuit. Journal of Education and e-Learning Research, 5,
Abstract
The study examined the supervisory practices of headteachers and how these supervisory practices relate with teacher motivation in public basic schools in the Anomabo Education Circuit of the Mfantseman Municipality in the Central Region of Ghana. Quantitative approach of the cross-sectional survey design was adopted. Using purposive and stratified random sampling techniques, 69 respondents, made up of 15 headteachers and 54 teachers were used for the study. Two sets of questionnaire (one each for headteachers and teachers) were used to collect data. A test-re-test method was used and to establish the reliability of the instruments, and correlation coefficients of 8.45 and 8.72 were obtained for headteachers and teachers questionnaires respectively. The data obtained were analysed using mean, standard deviation, and Pearson Product Moment Correlation. The results indicated that headteachers in the Anomabo Education Circuit often used all the instructional supervisory practices outlined in the study and they performed above average. However, orientation of new teaching staff was the dominant supervisory practice among the headteachers while the least practiced was provision of in-service training for teachers. Generally, teachers in public basic schools in the Circuit were highly motivated, and there was a statistically significant positive but weak relationship between headteachers’ supervisory practices and teacher motivation. The study concluded that pupils’ performance had not been encouraging even though the teachers were adequately motivated. It was therefore recommended among others, that, the Mfantseman Municipal Directorate of Ghana Education Service should organize regular in-service training programmes for headteachers in public basic schools in the Anomabo Education Circuit to improve their skills to effectively balance and practice their instructional supervisory practices to enhance very high teacher motivation. Keywords: instructional supervision, practices, headteachers, teachers, motivation
The study examined the supervisory practices of headteachers and how these supervisory practices relate with teacher motivation in public basic schools in the Anomabo Education Circuit of the Mfantseman Municipality in the Central Region of Ghana. Quantitative approach of the cross-sectional survey design was adopted. Using purposive and stratified random sampling techniques, 69 respondents, made up of 15 headteachers and 54 teachers were used for the study. Two sets of questionnaire (one each for headteachers and teachers) were used to collect data. A test-re-test method was used and to establish the reliability of the instruments, and correlation coefficients of 8.45 and 8.72 were obtained for headteachers and teachers questionnaires respectively. The data obtained were analysed using mean, standard deviation, and Pearson Product Moment Correlation. The results indicated that headteachers in the Anomabo Education Circuit often used all the instructional supervisory practices outlined in the study and they performed above average. However, orientation of new teaching staff was the dominant supervisory practice among the headteachers while the least practiced was provision of in-service training for teachers. Generally, teachers in public basic schools in the Circuit were highly motivated, and there was a statistically significant positive but weak relationship between headteachers’ supervisory practices and teacher motivation. The study concluded that pupils’ performance had not been encouraging even though the teachers were adequately motivated. It was therefore recommended among others, that, the Mfantseman Municipal Directorate of Ghana Education Service should organize regular in-service training programmes for headteachers in public basic schools in the Anomabo Education Circuit to improve their skills to effectively balance and practice their instructional supervisory practices to enhance very high teacher motivation. Keywords: instructional supervision, practices, headteachers, teachers, motivation
Esia-Donkoh, K., & Bentil, J. (2017). Factors influencing learning style preferences of students in public colleges of education in the central-western zone of Ghana. African Journal of Interdisciplinary Studies, 10,
Abstract
Studies into learning styles for the past three decades have brought about an increasing attention and awareness to the diverse ways through which students prefer to learn. Researchers in education indicate that individuals have different learning styles which are influenced by different factors. This study investigated the factors influencing learning style preferences of students in public Colleges of Education (CoEs) in the Central-Western Zone of Ghana. The study adopted quantitative approach of the cross-sectional survey design. Through random sampling, 1396 respondents were used for the study. The adapted instrument used for the study was pre-tested and its analysis yielded a Cronbach Alpha Co-efficient of 0.87 which was deemed appropriate. The students agreed that instructional factors influenced their learning style preferences but disagreed that their learning style preferences were influenced by personal factors, and environmental factors. There were statistically significant differences in the perception of students on factors that influence their learning style preferences based on sex (male or female), level (Level 100 or Level 200), and nature of College (single-sex or co-educational).It was concluded that students’ learning style preferences are affected by different factors which in turn affect their study habits. As such, it was recommended among others that tutors of public CoEs in the Central-Western Zone of Ghana should regularly provide an enabling classroom environment and adopt appropriate and varied teaching methods, techniques and strategies to enhance students’ learning style preferences. Keywords: Learning style, preference, environmental, personal, instructional, factors
Studies into learning styles for the past three decades have brought about an increasing attention and awareness to the diverse ways through which students prefer to learn. Researchers in education indicate that individuals have different learning styles which are influenced by different factors. This study investigated the factors influencing learning style preferences of students in public Colleges of Education (CoEs) in the Central-Western Zone of Ghana. The study adopted quantitative approach of the cross-sectional survey design. Through random sampling, 1396 respondents were used for the study. The adapted instrument used for the study was pre-tested and its analysis yielded a Cronbach Alpha Co-efficient of 0.87 which was deemed appropriate. The students agreed that instructional factors influenced their learning style preferences but disagreed that their learning style preferences were influenced by personal factors, and environmental factors. There were statistically significant differences in the perception of students on factors that influence their learning style preferences based on sex (male or female), level (Level 100 or Level 200), and nature of College (single-sex or co-educational).It was concluded that students’ learning style preferences are affected by different factors which in turn affect their study habits. As such, it was recommended among others that tutors of public CoEs in the Central-Western Zone of Ghana should regularly provide an enabling classroom environment and adopt appropriate and varied teaching methods, techniques and strategies to enhance students’ learning style preferences. Keywords: Learning style, preference, environmental, personal, instructional, factors
Baffoe, S., Esia-Donkoh, K., & Anderson, H. K. (2018). Influence of headteachers’ personal characteristics on their instructional supervisory practices. International Journal of Basic Education Research and Policy, 1,
Abstract
The study investigated the influence of personal characteristics of headteachers of public basic schools in the Anomabo Education Circuit on their instructional supervisory practices. The cross-sectional design was adopted for the study. Forty-four headteachers of public basic schools in the Education Circuit were obtained through the stratified sampling technique. A questionnaire based on a five-point Likert scale was used to collect the data from the headteachers. The instrument was pre-tested in the Yamoransa Education Circuit. A test-re-test method was used to establish the reliability of the instrument. The coefficients obtained were 8.41 for orientation of new teaching staff, 8.69 for monitoring punctuality and regularity, 8.63 for lesson observation, 8.87 for checking teachers’ record of work, and 8.72 for provision of in-service training. These indicated that the instrument was reliable. The data obtained were analysed using descriptive (frequency, mean, standard deviation) and inferential (t-test, and ANOVA) statistics. The study concluded that sex, age, academic qualification, and years of work experience of the headteachers did not significantly influence their instructional supervisory practices. Among the recommendations was that in the selection criteria for the position of headteachers in public basic schools in the Anomabo Education Circuit, the Mfantseman Municipal Directorate of Ghana Education Service should consider competence rather than personal characteristics.
The study investigated the influence of personal characteristics of headteachers of public basic schools in the Anomabo Education Circuit on their instructional supervisory practices. The cross-sectional design was adopted for the study. Forty-four headteachers of public basic schools in the Education Circuit were obtained through the stratified sampling technique. A questionnaire based on a five-point Likert scale was used to collect the data from the headteachers. The instrument was pre-tested in the Yamoransa Education Circuit. A test-re-test method was used to establish the reliability of the instrument. The coefficients obtained were 8.41 for orientation of new teaching staff, 8.69 for monitoring punctuality and regularity, 8.63 for lesson observation, 8.87 for checking teachers’ record of work, and 8.72 for provision of in-service training. These indicated that the instrument was reliable. The data obtained were analysed using descriptive (frequency, mean, standard deviation) and inferential (t-test, and ANOVA) statistics. The study concluded that sex, age, academic qualification, and years of work experience of the headteachers did not significantly influence their instructional supervisory practices. Among the recommendations was that in the selection criteria for the position of headteachers in public basic schools in the Anomabo Education Circuit, the Mfantseman Municipal Directorate of Ghana Education Service should consider competence rather than personal characteristics.
Sam, E.F., Daniels, S., Brijs, K., Brijs, T., & Wets, G. (2018). Modelling public bus/minibus transport accident severity in Ghana. Accident Analysis and Prevention, 119,
Abstract
The current safety concerns with buses/minibuses (public transport) in both developed and developing countries have warranted a renewed interest in bus/minibus safety research. Prior to this, there was a paucity of research in this domain especially in developed countries where the safety associated with buses was deemed adequate. In this study, we examined the factors that influence bus/minibus accident severity in Ghana using bus/minibus accident data from 2011–2015. We estimated the severity of bus/minibus accidents by fitting generalised ordered logit models. Our findings revealed that weekends, the absence of road median, night-time conditions, bad road terrain (curved, wet and rough roads), hit-pedestrian collisions, and drunk driving are associated with more severe bus/minibus accident outcomes. Conversely, minibuses, the absence of road shoulder, accidents in intersections, the presence of traffic control and collision types (except hit-pedestrian) are associated with less severe bus/minibus accidents
The current safety concerns with buses/minibuses (public transport) in both developed and developing countries have warranted a renewed interest in bus/minibus safety research. Prior to this, there was a paucity of research in this domain especially in developed countries where the safety associated with buses was deemed adequate. In this study, we examined the factors that influence bus/minibus accident severity in Ghana using bus/minibus accident data from 2011–2015. We estimated the severity of bus/minibus accidents by fitting generalised ordered logit models. Our findings revealed that weekends, the absence of road median, night-time conditions, bad road terrain (curved, wet and rough roads), hit-pedestrian collisions, and drunk driving are associated with more severe bus/minibus accident outcomes. Conversely, minibuses, the absence of road shoulder, accidents in intersections, the presence of traffic control and collision types (except hit-pedestrian) are associated with less severe bus/minibus accidents
Sam, E.F., Brijs, K., Daniels, S., Brijs, T., & Wets, G. (2018). Public bus passenger safety evaluations in Ghana: A phenomenological constructivist exploration. Transportation Research Part F, 58,
Abstract
Notwithstanding the growing body of literature that recognises the importance of personal safety to public transport (PT) users, it remains unclear what PT users consider regarding their safety. In this study, we explore the criteria PT users in Ghana use to assess bus safety. This knowledge will afford a better understanding of PT users’ risk perceptions and assessments which may contribute to theoretical models of PT risk perceptions. We utilised phenomenological research methodology, with data drawn from 61 purposively sampled participants. Data collection (through focus group discussions and in-depth interviews) and analyses were done concurrently to the point of saturation. Our inductive data coding and analyses through the constant comparison and content analytic techniques resulted in 4 code categories (conceptual dimensions), 27 codes (safety items/criteria), and 100 quotations (data segments). The vehicle condition, driver’s marital status and transport operator’s safety records were the most important criteria participants use in assessing bus safety. These findings imply that investment in, and maintenance of safer vehicles, and responsible and safety-conscious drivers, and prioritisation of passengers’ safety are key-targets for public bus/minibus operators in Ghana.
Notwithstanding the growing body of literature that recognises the importance of personal safety to public transport (PT) users, it remains unclear what PT users consider regarding their safety. In this study, we explore the criteria PT users in Ghana use to assess bus safety. This knowledge will afford a better understanding of PT users’ risk perceptions and assessments which may contribute to theoretical models of PT risk perceptions. We utilised phenomenological research methodology, with data drawn from 61 purposively sampled participants. Data collection (through focus group discussions and in-depth interviews) and analyses were done concurrently to the point of saturation. Our inductive data coding and analyses through the constant comparison and content analytic techniques resulted in 4 code categories (conceptual dimensions), 27 codes (safety items/criteria), and 100 quotations (data segments). The vehicle condition, driver’s marital status and transport operator’s safety records were the most important criteria participants use in assessing bus safety. These findings imply that investment in, and maintenance of safer vehicles, and responsible and safety-conscious drivers, and prioritisation of passengers’ safety are key-targets for public bus/minibus operators in Ghana.
Samlafo, B.V, (2018). Selenium - mercury antagonism in human blood samples from residents of Wassa West District, a mining area in Ghana. ICRST (2018) VIIIth International Conference on Researches in Science & Technology.. Rome, Italy: ICRST Ltd.
Abstract
This paper sought to evaluate Se to Hg (Se:Hg) molar ratio in human blood samples from residents of Wassa West district of Ghana, a region which has a long history of gold mining. Determining Hg levels alone in either environmental samples or human body fluids or tissues is necessary but not essential enough to assess the health risk of a given population. The levels of Se in such matrices are the fundamental factor in health risk assessment of Hg exposure and toxicity. Fifty blood samples were collected from volunteers from Wassa West District and were analysed for Hg and Se concentrations. The molar concentrations of each element were calculated and the corresponding Se:Hg molar ratios were determined. The results indicated that the molar concentrations of Se ranged from 0,35 µM to 62.38µM with a mean value of 25.26 µM, while Hg molar concentrations ranged from 0.05 µM to 4.65 µM with a mean value of 0.38 µM. The ratios ranged from 0.97 to 958 with a mean value of 155.40. Apart from, one subject, all the Se:Hg molar ratios were above one, which may imply that the residents have enough Se (well nourished) to prevent Hg toxicity.The precision and accuracy of the analytical methods were determined by the standard reference materials, DORM-2 and GBW 09101. The measurement precision which was determined using relative standard deviation fell within 4%.The results of the analysed samples were within ±5% of the certified values of the standard reference materials. Key words: blood, Selenium, mercury, antagonism, molar ratio, mining, health, risk.
This paper sought to evaluate Se to Hg (Se:Hg) molar ratio in human blood samples from residents of Wassa West district of Ghana, a region which has a long history of gold mining. Determining Hg levels alone in either environmental samples or human body fluids or tissues is necessary but not essential enough to assess the health risk of a given population. The levels of Se in such matrices are the fundamental factor in health risk assessment of Hg exposure and toxicity. Fifty blood samples were collected from volunteers from Wassa West District and were analysed for Hg and Se concentrations. The molar concentrations of each element were calculated and the corresponding Se:Hg molar ratios were determined. The results indicated that the molar concentrations of Se ranged from 0,35 µM to 62.38µM with a mean value of 25.26 µM, while Hg molar concentrations ranged from 0.05 µM to 4.65 µM with a mean value of 0.38 µM. The ratios ranged from 0.97 to 958 with a mean value of 155.40. Apart from, one subject, all the Se:Hg molar ratios were above one, which may imply that the residents have enough Se (well nourished) to prevent Hg toxicity.The precision and accuracy of the analytical methods were determined by the standard reference materials, DORM-2 and GBW 09101. The measurement precision which was determined using relative standard deviation fell within 4%.The results of the analysed samples were within ±5% of the certified values of the standard reference materials. Key words: blood, Selenium, mercury, antagonism, molar ratio, mining, health, risk.
Samlafo, B.V, (2018). Speciation of selenium (IV) (selenite) and selenium (VI) (selenate) levels in human blood samples. 17th International conference on Industrial Chemistry and Water Treatment. UK: Conference Series LLC Ltd.
Abstract
This paper examined the speciation of selenium(IV) (selenite) and selenium(VI) (selenate) levels in human whole blood samples from Tarkwa and its environs, a mining-impacted area in Ghana, using hydride generation atomic absorption spectrophotometric technique. Selenium (IV) in the experimental subjects ranged from 0.08±0.01 µg/mL to 0.50±0.02µg/mL with a mean of 0.29 µg/mL, while the control ranged from 0.02±0.1 µg/mL to 0.21 ±0.05 µg/mL, with a mean of 0.07 µg/mL. Significant differences existed between the levels of selenium (IV) concentrations in experimental and control subjects (p=0.0001 <0.05). The selenium (VI) in experimental subjects ranged from 2.97±0.52 µg/mL to 4.39±0.42 µg/mL ,with a mean of 3.63 µg/mL, while the control ranged from 0.60 µg/mL to 1.0 µg/mL, with a mean of 0.89 µg/mL. Significant differences existed between the levels of selenium (VI) in experimental and the control subjects (p=5.98 x10-14<0.05). The measurement precision determined by relative standard deviation was within ±5%. The accuracy of the determination was evaluated by analysing certified standard human hair reference material GBW 09101. The observed values were within ±6% of the certified values.
This paper examined the speciation of selenium(IV) (selenite) and selenium(VI) (selenate) levels in human whole blood samples from Tarkwa and its environs, a mining-impacted area in Ghana, using hydride generation atomic absorption spectrophotometric technique. Selenium (IV) in the experimental subjects ranged from 0.08±0.01 µg/mL to 0.50±0.02µg/mL with a mean of 0.29 µg/mL, while the control ranged from 0.02±0.1 µg/mL to 0.21 ±0.05 µg/mL, with a mean of 0.07 µg/mL. Significant differences existed between the levels of selenium (IV) concentrations in experimental and control subjects (p=0.0001 <0.05). The selenium (VI) in experimental subjects ranged from 2.97±0.52 µg/mL to 4.39±0.42 µg/mL ,with a mean of 3.63 µg/mL, while the control ranged from 0.60 µg/mL to 1.0 µg/mL, with a mean of 0.89 µg/mL. Significant differences existed between the levels of selenium (VI) in experimental and the control subjects (p=5.98 x10-14<0.05). The measurement precision determined by relative standard deviation was within ±5%. The accuracy of the determination was evaluated by analysing certified standard human hair reference material GBW 09101. The observed values were within ±6% of the certified values.
Gyasi, H, Ofoe, E.O, Samlafo, B.V (2018). The Effect of Molecular Model Sets on Students’ Academic Performance in Naming Organic Compounds. Education, 8,
Abstract
This study sought to investigate the effect of molecular model sets on naming simple organic compounds with reference to the International Union of Pure and Applied Chemistry (IUPAC) system of naming. A quasi-experimental design using molecular model sets were used on students in form three science classes at Effiduase Senior High School in the Sekyere East District of the Ashanti Region of Ghana. A control group was taught using the traditional approach whilst the experimental group was treated using the molecular model sets. Analysis of the pre and post-tests scores showed more improvement in the performance of the experimental group than the control group. A paired sample t-test, on responses of students’ attitudes, showed a statistically significant difference between the mean scores for the experimental group before and after the treatment. The study revealed that the integration of molecular model set approaches to teaching could help reduce, if not remove completely, the difficulties students face in naming organic compounds according to the IUPAC nomenclature. Keywords Molecular model set, Scientific model, Senior high school, Model, Organic chemistry
This study sought to investigate the effect of molecular model sets on naming simple organic compounds with reference to the International Union of Pure and Applied Chemistry (IUPAC) system of naming. A quasi-experimental design using molecular model sets were used on students in form three science classes at Effiduase Senior High School in the Sekyere East District of the Ashanti Region of Ghana. A control group was taught using the traditional approach whilst the experimental group was treated using the molecular model sets. Analysis of the pre and post-tests scores showed more improvement in the performance of the experimental group than the control group. A paired sample t-test, on responses of students’ attitudes, showed a statistically significant difference between the mean scores for the experimental group before and after the treatment. The study revealed that the integration of molecular model set approaches to teaching could help reduce, if not remove completely, the difficulties students face in naming organic compounds according to the IUPAC nomenclature. Keywords Molecular model set, Scientific model, Senior high school, Model, Organic chemistry
Gyasi, H, Ofoe, E.O, Samlafo, B.V (2018). The Effect of Molecular Model Sets on Students’ Academic Performance in Naming Organic Compounds. Education, 8,
Abstract
This study sought to investigate the effect of molecular model sets on naming simple organic compounds with reference to the International Union of Pure and Applied Chemistry (IUPAC) system of naming. A quasi-experimental design using molecular model sets were used on students in form three science classes at Effiduase Senior High School in the Sekyere East District of the Ashanti Region of Ghana. A control group was taught using the traditional approach whilst the experimental group was treated using the molecular model sets. Analysis of the pre and post-tests scores showed more improvement in the performance of the experimental group than the control group. A paired sample t-test, on responses of students’ attitudes, showed a statistically significant difference between the mean scores for the experimental group before and after the treatment. The study revealed that the integration of molecular model set approaches to teaching could help reduce, if not remove completely, the difficulties students face in naming organic compounds according to the IUPAC nomenclature. Keywords Molecular model set, Scientific model, Senior high school, Model, Organic chemistry
This study sought to investigate the effect of molecular model sets on naming simple organic compounds with reference to the International Union of Pure and Applied Chemistry (IUPAC) system of naming. A quasi-experimental design using molecular model sets were used on students in form three science classes at Effiduase Senior High School in the Sekyere East District of the Ashanti Region of Ghana. A control group was taught using the traditional approach whilst the experimental group was treated using the molecular model sets. Analysis of the pre and post-tests scores showed more improvement in the performance of the experimental group than the control group. A paired sample t-test, on responses of students’ attitudes, showed a statistically significant difference between the mean scores for the experimental group before and after the treatment. The study revealed that the integration of molecular model set approaches to teaching could help reduce, if not remove completely, the difficulties students face in naming organic compounds according to the IUPAC nomenclature. Keywords Molecular model set, Scientific model, Senior high school, Model, Organic chemistry
Apodi, J. & Amedorme, S. K. (2018). Design and Construction of Solar Water Heater for the Hotel, Catering and Institutional Management Department of Bolgatanga Polytechnic. International Journal of Engineering Sciences & Research Technology, 7,
Abstract
Solar water heating system consists of a collector plate to collect solar energy and an insulated storage tank to store hot water which can be used for domestic, industrial and small institutional purposes. This paper presents a systematic design and construction of solar water heater for use in the Hotel, Catering and Institutional Management (H.C.I.M) Department of the Bolgatanga Polytechnic in the Upper East Region of Ghana. The solar water heater was well constructed using locally available materials. A plain glass was used as a collector plate and an aluminium sheet metal obtained from a scrap yard painted black was used as an absorber plate. In addition, copper pipes attached to the absorber plate as fluid carrying tubes were also designed. The solar energy incident on the coated absorber plate transfers the heat to the fluid carrying pipes underneath the absorber plate placed in an insulated casing with a transparent glass cover having a cold and a hot water tank integrated in the system. The water passing through the pipes gets heated and flows into a storage tank by the principle of thermosyphon system. When tested, a maximum fluid output temperature of 80oC was observed at a maximum collector temperature of 55oC with ambient temperature of 37°C, and solar radiation 4.61 kWh/m2/day on a good sunny day. A total amount of 50 litres of hot water was harnessed which was in excess of hot water needed in the Department. This solar water heating system which is a renewable energy resource will continue to serve the heating needs of the Department and the Polytechnic at large since the area has abundant and consistent solar radiation. Keywords: Design and construction; solar water heaters; solar energy, collector plate, natural circulation
Solar water heating system consists of a collector plate to collect solar energy and an insulated storage tank to store hot water which can be used for domestic, industrial and small institutional purposes. This paper presents a systematic design and construction of solar water heater for use in the Hotel, Catering and Institutional Management (H.C.I.M) Department of the Bolgatanga Polytechnic in the Upper East Region of Ghana. The solar water heater was well constructed using locally available materials. A plain glass was used as a collector plate and an aluminium sheet metal obtained from a scrap yard painted black was used as an absorber plate. In addition, copper pipes attached to the absorber plate as fluid carrying tubes were also designed. The solar energy incident on the coated absorber plate transfers the heat to the fluid carrying pipes underneath the absorber plate placed in an insulated casing with a transparent glass cover having a cold and a hot water tank integrated in the system. The water passing through the pipes gets heated and flows into a storage tank by the principle of thermosyphon system. When tested, a maximum fluid output temperature of 80oC was observed at a maximum collector temperature of 55oC with ambient temperature of 37°C, and solar radiation 4.61 kWh/m2/day on a good sunny day. A total amount of 50 litres of hot water was harnessed which was in excess of hot water needed in the Department. This solar water heating system which is a renewable energy resource will continue to serve the heating needs of the Department and the Polytechnic at large since the area has abundant and consistent solar radiation. Keywords: Design and construction; solar water heaters; solar energy, collector plate, natural circulation
