基于PAR平臺(tái)與跨媒體的算法程序設(shè)計(jì)在線教學(xué)研究
[Abstract]:In the information age, the ability of high-tech innovation has become an important index to measure a country's core competitiveness. As one of the core qualities of creative talents, computational thinking has played an important role in the fields of industry, art, commerce and so on. Junior high school can help students to understand and master computational thinking in practice by arranging programming courses. But at present, the popular online programming courses and textbooks are not clear about the principles of program design. For the origin of some sophisticated algorithms, students can only understand through the executable code given in the textbook. The convenient algorithm programming method (par method) proposed by Professor Xue Jinyun can clearly explain the process of producing sophisticated programs. Based on the convenient model-driven software development platform (par platform) developed by our laboratory and cross-media combination technology, this paper extends the content design of par method to an online teaching platform for algorithmic programming. It teaches students how to use par method, and deduces the whole process of the algorithm from posing the problem to running the executable program. This paper analyzes and studies the features and functions of par method and cross-media technology, and combines par method with algorithmic programming course on the basis of par platform. According to the learning characteristics of each teaching link, the conversion and running function of the "famous teacher teaching" video teaching resources and the Apla algorithm program of par platform are combined into cross-media algorithm knowledge structure in the form of web services. By requesting multimedia teaching resources, students can learn how to use par method to solve the algorithm step by step. Then this paper takes par method to solve "cubic sum" algorithm problem as an example, simulates how students use online teaching platform to learn how to use par method to solve sophisticated algorithm problems and to manually write algorithm program. Finally, the learning effect of algorithm programming is evaluated by simulating students. The main innovations of this paper are as follows: (1) from the point of view of the teaching content, there is no teaching method in the current course of algorithm programming, which can completely explain the origin of the sophisticated algorithm. The par method can find out the recursion relation by dividing the sub-problem, and finally construct the loop invariant and the solution of the algorithm, which can explain the origin of the algorithm and the essence of the algorithm to the students very conveniently. This topic abstracts the relevant knowledge points of par method into the course of algorithm design, and carries on the online teaching of algorithm programming based on par platform. It makes the students master the most advanced algorithm programming method systematically. (2) aiming at the problem that the learning of the algorithm design course is complicated and the teaching level of the teacher is not uniform. In this paper, the direct recording of par method proposed by Professor Xue Jinyun to explain the course video. The famous teacher's instruction course is edited and processed according to the course learning process, and finally the "famous teacher's teaching video" is provided to the students by the way of Web service. To provide each student with the most accurate and thorough explanation of the algorithm programming course. (3) different from the popular MOOC online teaching at home and abroad, the course is simply recorded and broadcast. Courses composed of cross-media combination technology have more multimedia teaching resources. All teaching resources are combined with Web services to form cross-media knowledge points that conform to the learning and cognitive laws of students today. Converting par platform into online programming module of par platform by Web service can train students' hands-on ability and encourage students to study independently, and write courses to explain existing algorithms or create new algorithms according to the knowledge learned. The purpose of teaching is to draw a lesson from one another.
【學(xué)位授予單位】:江西師范大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:TP311.1-4;G434
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