• School Mathematics
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• v.4 no.1
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• pp.97-109
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• 2002

In this paper, tangram-like puzzles which are made by dissecting square are introduced. Especially, tangram-like puzzles which are consists of five pieces, six pieces, seven pieces, eight pieces, nine pieces, ten pieces, twelve pieces, fourteen pieces are introduced. But, This Introduction is very superficial. It means introduction is focused on each piece's geometrical shape, relative area when each tangram-like puzzles' area is one. With this introduction, six tangram-like puzzles' implication in mathematics education are suggested as followings. (1) Tangram-like puzzles may help fostering spatial senses. (2) Tangram-like puzzles may help teaching polygons, and its properties, congruences, similarities, etc. (3)Tangram-like puzzles may help teaching additions of fractions. (4) Tangram-like puzzles may help fostering mathematical thinking. (5) Tangram-like puzzles may serve as topics for supplement or reinforcement in teaching and learning tangram. (6) Tangram-like puzzles may serve as topics for problem posing in teaching and learning tangram.

• Journal of Creative Information Culture
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• v.5 no.3
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• pp.295-306
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• 2019

Despite the popularity and convenient accessibility of puzzles, the variety of puzzles have led to a lack of research on the nature of the puzzle itself. In guiding certain skills, such as abstractness, creativity, and logic, a teacher should have the thinking skill and strategy that appear in solving puzzles. In this study, the mathematical thinking that appears in solving puzzles from the perspective of experts is identified, and the strategies and characteristics are described and classified accordingly. For this purpose, we analyzed 85 math puzzles including the well-know puzzles to the public, plus puzzles from a popular book for the gifted student. The research analysis shows that there are 6 types of mathematics puzzles in which require mathematical thinking.

• Education of Primary School Mathematics
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• v.14 no.1
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• pp.57-67
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• 2011

The purpose of this study is to discuss the way and the purpose of presenting math puzzles in classroom. Firstly, the characteristics of math puzzles are discussed and the various uses of math puzzles are looked for. Secondly, The author illustrates models of classroom teaching with puzzles. Thirdly, The author discusses what subjects of mathematics could be dealt with in the math puzzle classroom. Finally, The author indicates that the teaching with math puzzles give chance of feeling 'mathematical composure' not only to students but also to teachers.

• School Mathematics
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• v.4 no.2
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• pp.283-296
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• 2002

In this study we tried to find the method of using the tangrams and the mosaic puzzles together for learning the elementary geometry in the Korean primary schools. The tangram and the mosaic puzzle activity-panels were developed and the activity-cards for them also were designed. The criteria to be used for the analyses of contents of the activity-cards were developed. We surveyed and analyzed the students' responses, A previous research had insisted that solely using the tangrams were not useful in learning about an obtuse-angled triangle in the elementary geometry (Welchman, 1999), but the combinative uses of the tangrams and the mosaic puzzles were found to extend the limits of the previous study in investigating the figures of the plain diagrams. Actually, the tangrams and the mosaic puzzles helped the students to learn the concepts of several elements of the plain diagrams such as 'angles', 'sides', and 'angular points', with students'operational comparison of the diagrams developed with them. They also provided useful clues in learning the relationship between the 'length' and the 'area' of the Plain diagrams. The students participated in the class with much activities, using the operational learning materials. They also comprehended the concepts and the principles of the elementary geometry more thoroughly, expressing their ideas in spoken or written languages through interactive communication. In conclusion, the tangram and mosaic puzzles can be used for learning the elementary geometry of the primary school level as motivative learning materials, helping students enhance diverse mathematical thinking and discover mathematical principles.

• The Bulletin of The Korean Astronomical Society
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• v.38 no.1
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• pp.25-25
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• 2013

Review briefly results of the solar and stellar chemical abundances from the high resolution spectroscopy and discuss the solar composition problem and puzzles of the astronomical spectroscopic results.

• International Journal of Internet, Broadcasting and Communication
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• v.15 no.1
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• pp.120-125
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• 2023

According to whether language symbols are used to solve puzzles, puzzle games can be roughly divided into puzzle games with language symbols and puzzle games without language symbols. Puzzles games with language symbols can be subdivided into dialogue puzzles games and word puzzles games. These different puzzle-solving methods have different characteristics and have different effects on the empathy in the game. In horizontal scrolling games, due to the characteristics of the third-person perspective of horizontal scrolling games, there is always a 'fourth wall' between the player and the controlled character, making it difficult for players to gain a empathy when playing such games .Especially when there is a dialogue between a player-controlled character and an NPC, the sense of distance between the player and the character will be further amplified. As one of the most common game types in side-scrolling games, side-scrolling puzzle games can be divided into language symbols-based puzzle game and non-language symbols-based puzzle game according to whether language symbols are used to solve puzzles, and then promote the development of the game plot. We combine the characteristics of horizontal scrolling games, and analyze the influence of language symbols on empathy in puzzle-solving games by summarizing the game characteristics of two different puzzle-solving methods. The results show that in horizontal scrolling puzzle games, solving puzzles without using language symbols can better expand the player's sense of plot substitution.

• Korean Journal of Logic
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• v.11 no.2
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• pp.127-170
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• 2008

This paper aims to present solutions to three intriguing puzzles on causation that Benardete presents by considering the results of infinite series of telescoping events. The main conceptual tool used in the solutions is the notion of collective causation, what many events cause collectively. It is straightforward to apply the notion to resolve two of the three puzzles. It does not seem as straightforward to apply it to the other puzzle. After some preliminary clarifications of the situation that Benardete describes to present the puzzle, however, we can apply the notion to resolve it as well.

• Journal for History of Mathematics
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• v.20 no.1
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• pp.57-72
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• 2007

Recently, dissection puzzles such as pentominoes have been used in mathematics education. But they are not actively applicable as a tool of problem solving or introducing mathematical concepts since researches about the historical background and developments of mathematical applications of such puzzles have not been effectively accomplished. In this article, in order to use pentominoes in mathematical teaming effectively, we first investigate geometric problems related to dissection puzzles and the historic background of development of pentominoes. And then we collect and classify data related to pentomino activities which can be applicable to mathematics classes based on the 7th elementary school national curriculum. Finally, we suggest several basic materials and directions to develop more systematic learning materials about pentominoes.

• Proceedings of the Korean Society for Language and Information Conference
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• 1991.02a
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• pp.113-132
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• 1991

• Journal of the Korea Furniture Society
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• v.21 no.5
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• pp.403-412
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• 2010

Puzzles of various types were made of wood. Children aged 3 to 5 were play directly into a wooden puzzle, then, mainly in adults, the survey was conducted. Comparisons of affinity for the children, teachers, parents, survey were compared with the rating. As a result, the preferred material of the puzzle was in the timber. The type of puzzle children, teachers and parents preferred picture puzzle. For colors, teachers and parents of the puzzle as unpainted wood was preferred. In addition, the favorite play was the difference in difficulty and number puzzles. Therefore, the preference for children and adults aware of the puzzle with a big difference has been clearly identified.