scholarly journals LEARNING THROUGH A HANDS-ON ACTIVITY USING A PBL APPROACH

2020 ◽  
Vol 2 (2) ◽  
pp. 95-105
Author(s):  
LUIZ CARLOS De CAMPOS ◽  
BARBARA CRISTINA OLIVEIRA DE CAMPOS ◽  
FRANCISCO XAVIER SEVEGNANI

This paper reports the project developed by students of the 4th semester of Civil Engineering Program at Pontifical Catholic University of Sao Paulo which has used the basic concepts of Mechanics of Rigid Bodies (MRB) course taught in classroom. In order to adopt the principles of the approach Project Based Learning (PBL) the professor whom teaches this course proposes the development of a project which the theme, in the two last years, was the Da Vinci’s Self-Supporting Bridge. The history tells that Da Vinci designed four types of bridges. The design of this bridge was the most simple and ingenious of them. The design of Self-Supporting Bridge was developed from 1485 to 1487 attending the request of his patron Cesar Borgia, and it was necessary simple assembly without woodworking skills by the troops. The design is held together by its own weight without requiring any ties or connections. The development of this project was part of the assessment process in the course. The students of the class were divided in teams with six members each one to set up the bridge. The project was developed in three steps. The first one was a bibliographic research on the issue. In the second step began the hands-on activity with the building of a prototype where test and analysis were made to understand the structures behaviour as result of a downward applied force. In the third step the hands-on activity was the bridge building in an enlarged size with the necessary adaptations related to the prototype, seeking to follow the original design, and under the condition of to allow and tolerate the weight of several people passing along the bridge. The materials used were wood cylindrical pieces with the appropriated sockets. All the pieces were prepared by the team and each step with the description of the building and assembly processes were reported in a video available on You Tube. Finally, the students answered questioned through two questionnaires applied to them to obtain their opinions and perceptions on the project. A closed questionnaire based on Likert’s scale and an open questionnaire where they could analyse all the aspects involving their participation in the project and what suggestions they had to do to improve the experience. In addition, the students could tell how the PBL approach help them in the teaching/learning process.

2021 ◽  
Vol 5 (4) ◽  
pp. 515
Author(s):  
Ni Wayan Rati ◽  
Ni Nyoman Rediani

PjBL learning is one of the innovative learning models developed with a constructivist approach, where the learning process provides opportunities for students to be more active in the learning process. The purpose of this study was to identify the obstacles faced by teachers and parents in implementing the PjBL model in the network during the Covid-19 pandemic. The type of research conducted is descriptive qualitative. The sample of this research is 68 teachers and 390 students' parents. data collection methods used are interviews and questionnaires. Before using the instrument, the validity of the instrument was analyzed using the CVR, it was obtained that the CVR value for the teacher constraint questionnaire, the VCR results showed that the 38 instruments developed were valid with a score of 0.73-1. Meanwhile, for the reliability test, the Cronbach Alpha coefficient of 0.82 was obtained. Meanwhile, for parental instruments, CVR showed that the 25 instruments developed were valid with a score of 1 reliability with Cronbach's Alpha, obtained a score of 0.93. Analysis of the data used is the analysis of the data in the study carried out interactively. The results of the analysis show that the constraints are constraints on making learning plans, the availability of learning tools, the availability of tools and materials used in the PjBL learning process, constraints on the participation of other parties in the PjBL learning process, obstacles in the implementation of PjBL learning, especially the implementation of PjBL syntax and the last obstacle. is the PjBL assessment process. As well as the obstacles faced by parents in assisting students to learn, among others, are some parents still have problems providing facilities even though the numbers are not too large, another obstacle faced is that parents experience problems if the tools and materials used in PjBL learning are difficult to obtain, besides that, the obstacles experienced are that parents have difficulty because they do not understand the material being studied by students.


Author(s):  
Barry Hyman ◽  
Sanjeev Khanna ◽  
Yuyi Lin ◽  
Jim Borgford-Parnell

This paper describes an NSF funded project in the Mechanical and Aerospace Engineering (MAE) Department at the University of Missouri. A primary goal of this project is to systematically increase project-based learning (PBL) experiences throughout the MAE curriculum. To accomplish this goal, recent capstone design projects that need further refinements serve as the basis for PBL activities throughout the MAE curriculum. A major tool for facilitating these refinement efforts is a new senior/graduate Design Management course in which each student in this course learns how to plan and manage design projects. These students then implement their learning by serving as project team managers in the courses in which the refinement activities are being conducted. This paper provides a detailed case study of five refinements to one capstone design that took place in four different MAE courses during the Spring 2011 semester. The paper describes a Fall 2009 capstone project that consisted of designing a portable wood chipper. The student design was very promising, leading to a chipper with significantly greater chipping capacity than commercially available chippers of the same size and weight. However, several faculty members reviewed the results and identified additional opportunities for refining the design. This paper describes activities during Spring 2011 when students in four different MAE courses developed refinements to the original design. The roles of the Design Management students in these activities are discussed. The paper also includes a discussion of the methods and findings of the formative assessment process, including interviews with, and surveys of, faculty and students.


Author(s):  
Ying-Chiao Tsao

Promoting cultural competence in serving diverse clients has become critically important across disciplines. Yet, progress has been limited in raising awareness and sensitivity. Tervalon and Murray-Garcia (1998) believed that cultural competence can only be truly achieved through critical self-assessment, recognition of limits, and ongoing acquisition of knowledge (known as “cultural humility”). Teaching cultural humility, and the value associated with it remains a challenging task for many educators. Challenges inherent in such instruction stem from lack of resources/known strategies as well as learner and instructor readiness. Kirk (2007) further indicates that providing feedback on one's integrity could be threatening. In current study, both traditional classroom-based teaching pedagogy and hands-on community engagement were reviewed. To bridge a gap between academic teaching/learning and real world situations, the author proposed service learning as a means to teach cultural humility and empower students with confidence in serving clients from culturally/linguistically diverse backgrounds. To provide a class of 51 students with multicultural and multilingual community service experience, the author partnered with the Tzu-Chi Foundation (an international nonprofit organization). In this article, the results, strengths, and limitations of this service learning project are discussed.


2017 ◽  
pp. 44-54
Author(s):  
Zenaida Gonzaga ◽  
Warren Obeda ◽  
Ana Linda Gorme ◽  
Jessie Rom ◽  
Oscar Abrantes ◽  
...  

Okra or Lady’s finger, botanically known as Abelmoschus esculentus (L.) Moench, is a tropical and sub-tropical indigenous vegetable crop commonly grown for its fibrous, slimy, and nutritious fruits and consumed by all classes of population. It has also several medicinal and economic values. Despite its many uses and potential value, its importance is under estimated, under-utilized, and considered a minor crop and little attention was paid to its improvement. The study was conducted to evaluate the effects of different planting densities and mulching materials on the growth and yield of okra grown in slightly sloping area in the marginal uplands in Sta. Rita, Samar, Philippines. A split-plot experiment was set up with planting density as main plot and the different mulching materials as the sub-plot which were: unmulched or bare soil, rice straw, rice hull, hagonoy and plastic mulch. Planting density did not significantly affect the growth and yield of okra. Regardless ofthe mulching materials used, mulched plants were taller and yielded higher compared to unmulched plants. Moreover, the use of plastic mulch resulted to the highest total fruit yield. The results indicate the potential of mulching in increasing yield and thus profitability of okra production under marginal upland conditions.


2021 ◽  
pp. 875608792110260
Author(s):  
ME Ismail ◽  
MM Awad ◽  
AM Hamed ◽  
MY Abdelaal ◽  
EB Zeidan

This study experimentally and numerically investigates a typical HDPE blown film production process cooled via a single-lip air-ring. The processing observations are considered for the proposed subsequent modifications on the air-ring design and the location relative to the die to generate a radial jet, directly impinging on the bubble. Measurements are performed to collect the actual operating parameters to set up the numerical simulations. The radiation heat transfer and the polymer phase change are considered in the numerical simulations. The velocity profile at the air-ring upper-lip is measured via a five-hole Pitot tube to compare with the numerical results. The comparison between the measurements and the numerical results showed that the simulations with the STD [Formula: see text] turbulence model are more accurate with a minimum relative absolute error (RAE) of 1.6%. The numerical results indicate that the peak Heat Transfer Coefficient (HTC) at the impingement point for the modified design with radial jet and longer upper-lip is 29.1% higher than the original design at the same conditions. Besides, increasing the air-ring upper-lip height increased the averaged HTC, which is 13.4% higher than the original design.


2001 ◽  
Vol 29 (3) ◽  
pp. 219-235 ◽  
Author(s):  
G. Q. Huang ◽  
B. Shen ◽  
K. L. Mak

TELD stands for “Teaching by Examples and Learning by Doing.” It is an on-line courseware engine over the World Wide Web. There are four folds of meanings in TELD. First, TELD represents a teaching and learning method that unifies a number of contemporary methods such as Problem-Based Learning (PBL) in medical education, Project-Based Learning (PBL) in engineering education, and Case Method (CM) in business education. Second, TELD serves as a Web server for hosting teaching and learning materials especially based on the TELD method. A variety of on-line facilities are provided for editing and uploading course materials such as syllabus, schedule, curriculum, examples of case study, exercises of mini-project, formative and summative assessments, etc. Third, TELD is a courseware search engine where educators are able to register their course materials and search for materials suitable for a particular course. In contrast with general-purpose search engines, TELD is set up for the special purpose of education. Therefore, the time and efforts spent on surfing are expected to be reduced dramatically. Finally, TELD is an on-line virtual classroom for electronic delivery of electronic curriculum materials. In addition to providing the lecture notes, TELD not only provides discussion questions for conducting in-class discussions and homework as formative assessment but also provides facilities for students to plan and submit their group work. This article presents an overview of the TELD courseware engine together with its background and underlying philosophy.


2018 ◽  
Vol 51 (4) ◽  
pp. 1059-1068 ◽  
Author(s):  
Pascal Parois ◽  
James Arnold ◽  
Richard Cooper

Crystallographic restraints are widely used during refinement of small-molecule and macromolecular crystal structures. They can be especially useful for introducing additional observations and information into structure refinements against low-quality or low-resolution data (e.g. data obtained at high pressure) or to retain physically meaningful parameter values in disordered or unstable refinements. However, despite the fact that the anisotropic displacement parameters (ADPs) often constitute more than half of the total model parameters determined in a structure analysis, there are relatively few useful restraints for them, examples being Hirshfeld rigid-bond restraints, direct equivalence of parameters and SHELXL RIGU-type restraints. Conversely, geometric parameters can be subject to a multitude of restraints (e.g. absolute or relative distance, angle, planarity, chiral volume, and geometric similarity). This article presents a series of new ADP restraints implemented in CRYSTALS [Parois, Cooper & Thompson (2015), Chem. Cent. J. 9, 30] to give more control over ADPs by restraining, in a variety of ways, the directions and magnitudes of the principal axes of the ellipsoids in locally defined coordinate systems. The use of these new ADPs results in more realistic models, as well as a better user experience, through restraints that are more efficient and faster to set up. The use of these restraints is recommended to preserve physically meaningful relationships between displacement parameters in a structural model for rigid bodies, rotationally disordered groups and low-completeness data.


Author(s):  
Loyalda T. Bolivar ◽  

A sadok or salakot is a farmer’s cherished possession, protecting him from the sun or rain. The Sadok, persisting up to the present, has many uses. The study of Sadok making was pursued to highlight an important product, as a cultural tradition in the community as craft, art, and part of indigenous knowledge in central Antique in the Philippines. Despite that this valuable economic activity needs sustainability, it is given little importance if not neglected, and seems to be a dying economic activity. The qualitative study uses ethnophenomenological approaches to gather data using interviews and participant observation, which aims to describe the importance of Sadok making. It describes how the makers learned the language of Sadok making, especially terms related to materials and processes. The study revealed that the makers of Sadok learned the language from their ancestors. They have lived with them and interacted with them since they were young. Sadok making is a way of life and the people observe their parents work and assist in the work which allows them to learn Sadok making. They were exposed to this process through observations and hands-on activities or ‘on-the-job’ informal training. They were adept with the terms related to the materials and processes involved in the making of Sadok as they heard these terms from them. They learned the terms bamboo, rattan, tabun-ak (leaves used) and nito (those creeping vines) as materials used in Sadok making. The informants revealed that the processes involved in the making of Sadok are long and tedious, starting from the soaking, curing and drying of the bamboo, cleaning and cutting these bamboo into desired pieces, then with the intricacies in arranging the tabun-ak or the leaves, and the weaving part, until the leaves are arranged, up to the last phase of decorating the already made Sadok. In summary, socialization is one important factor in learning the language and a cultural practice such as Sadok making. It is an important aspect of indigenous knowledge that must be communicated to the young for it to become a sustainable economic activity, which could impact on the economy of the locality. Local government units should give attention to this indigenous livelihood. Studies that would help in the enhancement of the products can likewise be given emphasis.


Author(s):  
Sona Ahuja ◽  
Diksha Yadav

The present study provides a description of the model of interactive digital pedagogy for remote areas and its impact on pedagogical satisfaction and academic achievement of students. This pedagogical intervention was designed to enrich and supplement the teaching-learning experience in remote and underprivileged schools through the use of technology. An interactive online teaching-learning system was set-up using a digital pedagogy. 150 school students and 80 prospective teachers from three higher secondary schools of Madhya Pradesh and Tamil Nadu participated in the study. Pedagogical satisfaction and academic achievement of the school students who studied in this set-up were examined. The results revealed that active learning, technological competence and learner autonomy were enhanced in an online environment when compared to an offline environment.


2013 ◽  
Vol 8-9 ◽  
pp. 65-74 ◽  
Author(s):  
Sanda Porumb ◽  
Cosmin Porumb ◽  
Aurel Vlaicu ◽  
Bogdan Orza

An important part of the articles published in the last years highlight teaching and learning approaches and technologies integrated in complex applications and present the concepts used for creating and presenting the educational content. They refer to the methodologies used in self-and collaborative learning, including problem-and project-based learning. The assessment process is also illustrated in several articles but there is no a generic framework that complies with the rules of both formal and non-formal education acts. Our proposal is focused on advanced concepts for improving the educational services and the manner a generic framework for blended learning can be customized for higher education and lifelong learning. In addition, the paper proposes a virtual collaboration prototype that supports interpersonal and inter-process collaborative learning services that can be used as core of any rapidly growing educational community.


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