Automated Detection and Removal of Cycles in a Concept Map

Author(s):  
Anal Acharya ◽  
Madhurima Ghosh ◽  
Saran Jha

Over the years, concept maps have been used by several researchers to construct online learning systems. This is due to their flexibility in organizing knowledge. However, for effective use of concept maps in education, detection, and removal of cycles within them is necessary. Cycles in a concept map may result in ambiguity and confusion as one concept can lead back to itself. This study first gives brief details about concept maps and their applications in the field of education. A popular algorithm of graph theory depth-first search is then used for detection of cycles. If any cycles are found, they are removed from the graph in an iterative fashion until there are no more cycles in the graph. A Java program was written to simulate the proposed algorithm and found to yield desired results on sample graphs. Finally, the future uses of concept maps have been discussed.

Author(s):  
Anal Acharya ◽  
Devadatta Sinha

The growth of communication technologies in the last two decades has led to development of web based learning systems for a variety of applications. The efficiency of such learning systems has often been enhanced by the use of collaboration tools and techniques. This study proposes a method of collaboration for construction of Concept Map of learning among a set of ‘n' learners divided into ‘k' groups using Short Message Services (SMS). This concept map is used as a sequence for construction of learning system. The functional modules of the architecture of this system are derived from the ‘Extended' theory of Meaningful learning proposed by David Ausubel. Two approaches have been used for evaluating this collaborative learning system. Firstly, paired t-test was conducted on student marks before and after collaboration to find the degree of significance between these. Secondly, efficiency of the collaboration process is computed using a set of Collaborative Efficiency Indexes (CEI) derived from a set of proposed metrics.


Author(s):  
Andrew J. Afram ◽  
John Briedis ◽  
Daisuke Fujiwara ◽  
Robert J.K. Jacob ◽  
Caroline G.L. Cao ◽  
...  

A concept map is a diagram that consists of nodes that contain individual concepts or pieces of information. These nodes are connected by lines that represent relationships between the information. Large concept maps are difficult to explore and navigate using current digital display interfaces. As users zoom in on a desired node, connections between the node of interest and surrounding nodes become hidden from the user. A combination of fisheye zooming and semantic zooming mechanisms to maintain the visual connections between the nodes was implemented, and a user study to determine whether this technique helps users learn from the map was conducted. The user study revealed that participants were able to recall more information presented in a concept map, with practically no difference in the amount of time spent using the map, despite the novelty of the semantic fisheye interface.


2021 ◽  
Vol 12 (1) ◽  
pp. 113-120
Author(s):  
Yordanka Nikolova ◽  

This article analyzes and summarizes the results of a study conducted through a survey of parents and interviews with teachers interacting with each other through innovative forms (trainings, team building, workshops) in an informal environment and sought a correlation with the quality of student-parent-teacher communication, in terms of online learning. The researched innovative solutions and activities are presented to the future pedagogues in order to improve the pedagogical preparation of the pedagogical students from the Faculty of Pedagogy of Sofia University „St. Kliment Ohridski “and their motivation for the realization of fully- fledged relationships, a two-way relationship with parents as a major factor in increasing the effectiveness of the educational process.


2017 ◽  
Vol 18 (4) ◽  
pp. 849-874 ◽  
Author(s):  
I. B. A. Ghani ◽  
N. H. Ibrahim ◽  
N. A. Yahaya ◽  
J. Surif

Educational transformation in the 21st century demands in-depth knowledge and understanding in order to promote the development of higher-order thinking skills (HOTS). However, the most commonly reported problem with respect to developing a knowledge of chemistry is poor mastery of basic concepts. Chemistry laboratory educational activities are shown to be less effective in developing an optimum conceptual understanding and HOTS among students. One factor is a lack of effective assessment and evaluation tools. Therefore, the primary focus of this study is to explore concept maps as an assessment tool in order to move students' thinking skills to a higher level during laboratory learning activities. An embedded mixed method design is used in this study, which has also employed a pre-experimental research design. This design triangulates quantitative and qualitative data, which are combined to strengthen the findings. A low-directed concept mapping technique, convergence scoring method, and pre-post laboratory concept map were used in this study. An electrolysis HOTS test was used as the research instrument in order to measure the level of student achievement with respect to high-level questions. In addition, the thought process that is involved when students construct concept maps has been explored and studied in detail by utilising a think-aloud protocol. Results showed a positive development towards understanding and higher level thinking skills in students with respect to electrolysis concepts learned through chemistry laboratory activities. An investigation of the students' thinking processes showed that high-achieving students were more capable of giving a content-based explanation of electrolysis and engaged in monitoring activities more often while building a concept map. Nonetheless, all categories of students managed to show a positive increase in the activities of explanation and monitoring during the construction of concept maps after they were exposed to the assessment tool in the laboratory learning activities. In conclusion, the assessment activity using concept maps in laboratory learning activities has a positive impact on students' understanding and stimulates students to increase their HOTS.


2020 ◽  
Vol 15 ◽  
pp. 22-25
Author(s):  
Nataliia Borysova

The article reveals the concept of conceptual mapping in the process of learning a foreign language. It is stated that a concept map is a diagram that shows the relationships between notions. Such maps are graphical tools for organizing and presenting knowledge. It is emphasized that the most useful form of a concept map for teaching and learning is one that is placed in a hierarchical organization, where more general and comprehensive notions are at the top of the map and more specific at the bottom. The difference between concert cards and mind maps is given. It is emphasized that despite a similarity of mind maps and concept maps, these two methods differ in many respects, in particular, concept maps are characterized by clear links between the described ideas and are more structured than mind maps, as a formally approximate description, which places ideas in some sequence and organizes them hierarchically by levels of importance.


2016 ◽  
Vol 10 (1) ◽  
pp. 37-46
Author(s):  
Julie Lindsay

Connected and collaborative learning that leads to co-creation of ideas and solutions is imperative across all levels of education. To make the shift we want to see, we need to understand the pedagogy of online learning in a global context. This commentary shares an understanding of thought leaders who have developed and shared new approaches that take learning beyond the immediate environment sca olded by digital technologies. It also poses the question, "What if we collaborated as a global community?" and starts a conversation about new pedagogical approaches to support " at," connected learning. This is already happening now—the future is now— it’s time to connect the world.


Author(s):  
Susan Silverstone

<p class="Default" style="text-align: justify; margin: 0in 0in 0pt;"><span style="font-family: Times New Roman;"><span style="font-size: 9.5pt; mso-bidi-font-style: italic;">The challenges for education in the 21<sup><span style="position: relative; top: -4pt; mso-text-raise: 4.0pt;">st </span></sup>century are fundamentally the same as they were in each of the past centuries &ndash; holding on to what is of value while discovering and developing what adds value to both teaching and learning. While the future is difficult to predict, the seeds of the future can be seen in the behaviors of the present. Obviously technology will play an even greater role in future education no matter how much and how quickly technology changes. Of greater importance than technology is the thinking needed for knowing how to use technology for advancing education for both students and instructors. Identifying the shifts in behavior that people are experiencing today provides clues on the practices that will be common tomorrow. Basic changes in education include the following: (1) moving from an instructor-centered paradigm focused on teaching to a learner-centered model focused on learning; (2) shifting from an emphasis on textbooks as a preferred source of knowledge to the use of technology as the primary tool for acquiring information and ideas; (3) advancing from knowledge to know-how exemplified in the differences expected from the cognitive, behaviorist and constructivist approaches to learning; and (4) sharing responsibility for learning through increased interaction and continuous communication between and among all individuals engaged in becoming educated persons. Technology, though it may be the key tool for facilitating these changes, has its limitations as well as its advantages, as any instructor knows when comparing face-to-face classroom lecturing with virtual asynchronous online discussions. Today&rsquo;s students are techno-savvy and may be considered the &ldquo;Wi-Fi Generation.&rdquo; In the School of Business at National University, the second largest not-for-profit university in California, a blended approach to learning has been adopted in the accelerated one-month format used for its online education program. This paper explores the effects of some new technological options which were recently provided to marketing students in order to make their online learning experience more exciting and meaningful. National University&rsquo;s online classes are offered on the eCollege platform. Students interact with each other asynchronously through discussion boards and synchronously in weekly chat sessions. Chat sessions had been offered in a text-based format, but the School of Business has invested in iLinc software which provides Voice over Internet Protocol (VoIP) capability. In iLinc, students can see and hear each other as well as the instructor in real time. The system allows application sharing, group web-browsing, the display of PowerPoint</span><span style="font-size: 10pt; mso-bidi-font-style: italic;">&reg; </span><span style="font-size: 9.5pt; mso-bidi-font-style: italic;">slideshows, voting, and independent group work. Using this technology, the instructor acts as both a discussion moderator and a live lecturer. The traditional text-based chats are no longer used due to the high student acceptance and delight with the iLinc system. Outside of the virtual classroom, the marketing students were tasked to analyze and comment on the content of selected television shows. National University&rsquo;s students are adult learners who grew up passively watching television from an early age. These assignments were designed to get them to think beyond the surface entertainment to the underlying marketing and business messages given in these shows. For example, a graduate advertising class was assigned to comment on the reality show, The Apprentice, while an undergraduate class critiqued the Super Bowl advertisements. In both classes the students were told to look at these programs critically and share their comments with the class. The use of these current mass media presentations, (which afforded live action cases that demonstrated the immediate consequences of managerial actions), was shown to be very powerful. </span><span style="font-size: 9.5pt;">Overall, the students appear to thoroughly enjoy this addition of topical and &ldquo;live&rdquo; learning tools to their online learning experience. While not tested empirically as yet, these new classroom tools seem to increase student comprehension and retention of the course material. </span></span></p>


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