Introduction To Linear Programming As A Popular Tool In Optimal Reservoir Operation, A Review

Heydari, Mohammad; Noori, Mohammad; ShahiriParsa, Ahmad; Qaderi, Kourosh; Othman, Faridah

doi:10.5281/zenodo.18254

Cited by 9 publications

(6 citation statements)

References 16 publications

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“…Previous empirical studies have revealed that LP and/or related concepts are not only difficult for learners but also challenging to teach (Awofala, 2014;Goulet-Lyle et al, 2020;Kenney et al, 2020;Verschaffel et al, 2020aVerschaffel et al, , 2020b. Different factors account for learners' challenges in mathematics word problems (e.g., Ahmad et al, 2010;Haghverdi et al, 2012;Heydari et al, 2015). The challenges range from students' comprehension of word problem statements, and their attitude towards the topic, to their transformation from conceptual to procedural knowledge and understanding.…”

Section: The Theoretical Frameworkmentioning

confidence: 99%

Secondary school students’ attitude towards mathematics word problems

Wakhata

Mutarutinya

Balimuttajjo

2022

Humanit Soc Sci Commun

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Students’ positive attitude towards mathematics leads to better performance and may influence their overall achievement and application of mathematics in real-life. In this article, we present the findings of an investigation on students’ attitude towards linear programming (LP) mathematics word problems (LPMWPs). An explanatory sequential quasi-experimental design involving a pre-intervention-intervention-post-intervention non-equivalent control group was adopted. A sample of 851 grade 11 Ugandan students (359 male and 492 female) from eight secondary schools (public and private) participated. Cluster random sampling was applied to select respondents from eight schools; four from central Uganda and four from eastern Uganda. The attitude towards mathematics inventory-short form (ATMI-SF) was adapted (with α = 0.75) as a multidimensional measurement tool for measuring students’ attitude towards LPMWPs. The results revealed that students’ attitude towards LPMWPs was generally negative. Enjoyment, motivation, and confidence were weekly negatively correlated while usefulness was positively correlated. Additionally, the results found no significant statistical relationship between students’ attitudes towards LPMWPs and their age, gender, school location, school status, and school ownership. The discrepancy is perhaps explained by both theoretical and/or psychometric limitations, and related factors, for instance, students’ academic background, school characteristics, and transitional beliefs from primary to secondary education. This study acknowledges the influence of and supplements other empirical findings on students’ attitude towards learning mathematics word problems. The present study provides insight to different educational stakeholders in assessing students’ attitude towards LPMWPs and may provide remediation and interventional strategies aimed at creating students’ conceptual change. The study recommends that teachers should cultivate students’ interests in mathematics as early as possible. Varying classroom instructional practices could be a remedy to enhance students’ understanding, achievement, and, motivation in learning mathematics word problems. The teachers’ continuous professional development courses should be enacted to improve instruction, assessment, and students’ attitude. Overall, the study findings support the theoretical framework for enhancing the learning of mathematics word problems in general and LP in particular.

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Section: The Theoretical Frameworkmentioning

confidence: 99%

Secondary school students’ attitude towards mathematics word problems

Wakhata

Mutarutinya

Balimuttajjo

2022

Humanit Soc Sci Commun

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“…The cropping pattern in the Pengga irrigation area is Paddy-Paddy-Secondary Crops, with planting schedules set for November-I and November-II. Factors influencing irrigation water requirements include meteorology, agronomy and soil, and irrigation canal conditions (Heydari, Othman, Qaderi, Noori and Shahiriparsa, 2015). Percolation and seepage rates on clay soil types post-inundation range between 1 mm day -1 and 3 mm day -1 (Samosir et al, 2015).…”

Section: Irrigation Water Requirementmentioning

confidence: 99%

Optimization of Pengga Reservoir in The Mandalika Special Economic Zone for Irrigation and Water Supply

Agastya,

I Wayan Yasa,

I Dewa Gede Jaya Negara

2024

J. civil eng. forum

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Mandalika Special Economic Zone is tourism area that is expected to improve the economy in West Nusa Tenggara Province. To support these activities, an allocation of domestic water needs of 200 liters second -1 is needed. The potential availability of water in the Pengga Reservoir is planned to be a source of domestic water needs in the Mandalika Special Economic Zone. Pengga Reservoir has an effective storage volume of 17.26 MCM. Potential water resources in Pengga Reservoir are obtained from reservoir outflow upstream and lateral inflow from several tributaries. The study was carried out to determine the reservoir storage capacity to meet domestic water needs and irrigation water needs covering an area 3189 ha. The cropping pattern used in the Pengga irrigation area is Paddy – Paddy/Secondary Crops – Paddy/Secondary Crops. To optimize the potential of water resources in the Pengga Reservoir, a linear programming optimization method is used. Indicators of the success of optimization calculations are indicated by the value of cropping intensity, k factor and reliability that have met the minimum limit value. The k factor value for irrigation water needs is 0.70 and domestic water needs is 0.85. Based on the optimization results, it is known the largest annual cropping intensity value occurs in the November I planting season. This conclusion can be seen from the comparison of annual cropping intensity values for the November I and November II planting schedules for the dry year inflow discharge scenario of 99.98% and 97.22% respectively. The cropping intensity value in the November I planting season is greater than November II, namely 100% and 97.25%, for the normal year discharge inflow scenario. This study provides an information for policy makers can use the November I planting schedule to obtain values for maximum cropping intensity and domestic water requirements.

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“…Previous empirical findings have shown that LP and/or related concepts are not only difficult for learners but also challenging to teach (Awofala, 2014;Goulet-Lyle et al, 2020;Kenney et al, 2020;Verschaffel et al, 2020aVerschaffel et al, , 2020b. Different factors account for learners' challenges in learning mathematics using word problems (Ahmad et al, 2010;Haghverdi et al, 2012;Heydari et al, 2015). As earlier stated, students' challenges in learning LP mainly stem from poor comprehension of word problem statements, poor interpretation and inadequate knowledge and understanding of basic algebraic concepts.…”

Section: Linear Programmingmentioning

confidence: 99%

Relationship between active learning heuristic problem-solving approach and students’ attitude towards mathematics

Wakhata

Mutarutinya

Balimuttajjo

2023

EURASIA J Math Sci Tech Ed

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The study explored the direct relationship between active learning heuristic problem-solving approach and students’ attitude towards mathematics, using linear programming (LP) word tasks. Two instruments were used for data collection: the Attitude towards Mathematics Inventory-Short Form was adapted (with α = .75) as a multidimensional measurement tool, and a validated standardized active learning heuristic problem-solving tool. A quantitative approach with a quasi-experimental pre-test, post-test, and non-equivalent control group study design was adopted. A sample of 608 grade 11 Ugandan students (291 male and 317 female) from eight secondary schools (public and private), four from central Uganda, and the remaining four from eastern Uganda participated. Data were analyzed using PROCESS macro for SPSS (v.4). The results revealed a direct significant positive relationship between active learning heuristic problem solving approach (ALHPSA) and students’ attitude towards solving LP word tasks (ATLPWTs). Thus, the ALHPSA positively and directly impacted on students’ ATLPWTs. The findings can be explained by theoretical, conceptual, and/or psychometric factors. Overall, the results indicate beneficial practical implications that support the theoretical framework for enhancing the learning of mathematics using word problems in Ugandan secondary schools and beyond.

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Introduction To Linear Programming As A Popular Tool In Optimal Reservoir Operation, A Review

Cited by 9 publications

References 16 publications

Secondary school students’ attitude towards mathematics word problems

Secondary school students’ attitude towards mathematics word problems

Optimization of Pengga Reservoir in The Mandalika Special Economic Zone for Irrigation and Water Supply

Relationship between active learning heuristic problem-solving approach and students’ attitude towards mathematics

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