• Journal of the Korea Society of Computer and Information
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• v.14 no.8
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• pp.19-24
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• 2009

This ladder rejection game is different from the existing game in terms of design, functions, and contents of the screen. This paper contains six specific explanations about the supplemented ladder rejection game. First, the design of this ladder rejection game extended fundamental principles of the existing game and added new diverse functions. Therefore, 12 people can play this game at the same time. Actually, the existing ladder game was designed for 10 people. Second, this supplemented ladder rejection game was designed after the existing game was analyzed. Third, the contents of the screen and the game which is embodied with object design of the whole screen were examined. Fourth, terminology and fundamental principles of this game was explained. Fifth, strong points of the game were listed. Sixth, the direction of the game development in the future was argued.

• Communications of Mathematical Education
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• v.27 no.3
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• pp.267-281
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• 2013

In this paper, we explore the possibility that ladder diagram games can be used for the introduction of the function and composite function. A ladder diagram with at most one rung is a bijection. Thus a ladder diagram with r rungs is the composition of r one-to-one correspondence. In this paper, we use ladder diagrams to give simple proofs of some fundamental facts about one-to-one correspondence. Also, we suggest Story-telling for introduction of function in middle school and high school. The ladder diagram approach to one-to-one correspondence not only grabs our students' attention, but also facilitates their understanding of the concept of functions.

• Proceedings of the KAIS Fall Conference
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• 2005.05a
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• pp.246-249
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• 2005

본 논문에서는 네트워크 게임을 통하여 Client/Server 환경의 전반에 대해 알아볼 것이며, 네트워크 게임의 한 예로 사다리 게임을 구현하였다. 사다리 게임은 JAVA를 이용하였으며 이를 통해 네트워크 게임의 실행 원리를 분석하고 이를 통하여 Client/Server의 분산 환경에 대해 고찰한다.

• The Journal of Korean Association of Computer Education
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• v.21 no.6
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• pp.39-47
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• 2018

This paper dealt with investigating the number of minimal spanning ladders originated from ladder game and their properties as well as the related computational thinking aspects. The author modified the filtering techniques to enhance Mathematica project where a new type of graph was generated based on the algorithm using a generator of firstly found minimal spanning graph by repeatedly applying independent ladder operator to a subsequence of ladder sequence. The newly produced YC graphs had recursive and hierarchical graph structures and showed the properties of edge-symmetric. As the computational complexity increased the author divided the whole search space into the each floor of the newly generated minimal spanning graphs for the (5, 10) YC graph and the higher (6, 15) YC graph. It turned out that the computational thinking capabilities such as data visualization, abstraction, and parallel computing with Mathematica contributed to enumerating the new YC graphs in order to investigate their structures and properties.

• Venture DIGEST
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• s.38
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• pp.22-23
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• 2003

버스기사이자 <작은 책> 편집장이기도 한 안건모씨는 그야말로 입지전적 인물이다. 어릴 적부터 날품팔이 노동판에서 잔뼈가 굵은 사람이 잡지 편집장까지 맡고 있으니 말이다. 그러나 그의 '입지전'은 성공과 출세의 사다리를 오르는 게 아니라 아예 그것으로부터 등을 돌려버렸다는 점에서 남다르다.