• The Journal of Korean Association of Computer Education
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• v.8 no.6
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• pp.23-32
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• 2005

Dolittle is a educational programming language that helps students learning principles and concepts of computer science with programming. Learning programming with robot improve learning achievements robot motivate to be interest with programming. However, Dolittle robot programming is a different from Dolittle programming in process of interpretation and execution mechanism. Therefore, students have virtually to learn two languages to control robot and it would reduce the worth of Dolittle as educational programming language. In order to solve this problem, we tried to Unify Dolittle and robot control language using parser that Dolittle program with turtle object convert robot program. But this try couldn't overcome completely this problem because attributes of turtle object is different from robot. In this research we unified Dolittle programming and Dolittle robot programming as a way of adding new robot object in dolittle standard object group. it would improve educational effect of learning programming with robot in Dolittle.

• The Journal of Korean Institute for Practical Engineering Education
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• v.3 no.2
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• pp.69-74
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• 2011

This paper proposes elementary Dolittle programming problems using the algorithmic thinking-based problem model with material factors in the elementary Dolittle programming. And this paper proves the validity of developed Dolittle programming problems in defining them as algorithmic thinking-based problems through experiments. The experimental results are analyzed in views of variety and effectiveness evaluation of answer algorithms and suitability of allocating degrees of difficulties to the developed Dolittle programming problems.

• The Journal of Korean Association of Computer Education
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• v.7 no.6
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• pp.1-12
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• 2004

Current computer education is difficult to educate basic concepts and principals of the computer science because the 7th curriculum of computer education is focused on the application of software. According to the ACM K-12 report about the computer science education model, current computer education is taking the wrong way and we should put the highly priority on the education of the fundamentals through programming languages for a better computer education oriented to the computer science. This paper introduces a new object-oriented educational programming language "Dolittle". The design principals of Dolittle are simple syntax of Korean, incremental programming, text based programming, aliasing of function, and object-oriented programming. Being applied to middle school classes, we can confirm that Dolittle is easy to learn, and gives rise to high interest and keeps interest through a course, and also is of great practical use in class for programming novice.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.13 no.7
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• pp.1467-1474
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• 2009

What matters in the society of knowledge and information is not that they just know certain facts, but that when faced with new situations, they should be able to develop novel ideas, apply them and do the problems or the tasks confronting them. This cannot be achieved through learning of mere knowledge. Computer programming lessons have shown positive effects on general thinking ability, metacognitive aspects, and logical thinking. The ACM has suggested that 8th grade students at the first level (second year students of middle school) be educated in programming languages such as LOGO to raise their ability to think logically. Previous studies have confirmed educational programming languages such as LOGO and BASIC, which are currently used, are helpful in improving the ability to think logically and to solve problems. However these languages lack connectivity with later learning. Little research has been done on 'Dolittle', an educational programming language, newly developed, using object-oriented notions. Few studies have been made of the effects of 'Dolittle' on the ability to think logically. The following results were obtained. The research didn't lead to a statistically significant improvement of the students' cognitive development level. However, proportional logic and combinational logic, among the six subcategories of logic, improved through the introduction of 'Dolittle' programming lessons. This leads to the conclusion that in the processing of solving the problems given, the students learned by themselves and improved their ability to think logically.

• Journal of The Korean Association of Information Education
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• v.14 no.4
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• pp.619-626
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• 2010

In this study, we performed experimental studies on the educational programming languages of Dolittle and Robot to compare and analyze their effect on improving creativity. We formed three sixth grade classes, totaling 99 students, into a Robot class, a Dolittle class, and a general class that served as a neutral. The Dolittle class and the Robot class took ten programming lessons with specific hand-in operations, as well as feedback and discussion, during ten weeks. The experiment results showed that student creativity in the two programming classes improved more than that of students in the general class. Especially creativity of the students in the Robot class improved the most. Moreover, the mean creativity of the lower academic achievement group was slightly better than that of the higher group. This implies that there is no positive correlation between academic achievement and creativity.

• The Journal of Korean Association of Computer Education
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• v.8 no.2
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• pp.23-32
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• 2005

Educational Programming Language (EPL) should be learner-friendly and easy to use. Dolittle, an object-oriented educational programming language (EPL), offers programming environment which can be programmed in Korean(Hangul). However, since some Dolittle commands are not appropriate to elementary and middle school students, it shows limitations for learners to express programming process. In this paper, we developed a set of 1:n multi-reserved words which are able to program with Korean linguistic characteristics as well as considering learners' differences, preferences, and applicable areas. The conclusion in the paper showed that programming with this 1:n multi-reserved words helped learners concentrate on problem solving regardless of the reserved words.

• Journal of The Korean Association of Information Education
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• v.13 no.4
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• pp.443-450
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• 2009

A programming class was conducted in a current discretionary activity time-slot for computer education by using Dolittle which enhances problem solving ability and creativity for the fifth graders in elementary school. Based on this experiment, a correlation between the programming class and problem solving ability, creativity, and interests in programming of children was examined to suggest an outlook for improving the current computer education.

• Journal of Digital Contents Society
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• v.10 no.3
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• pp.375-380
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• 2009

Computer programming education can improve students' logical thinking and problem-solving ability. Therefore, it is essential tool to improve algorithmic thinking ability. We study how much Dolittle and Squeak influences improving elementary students' logical thinking ability. Thus, we divided 6th grade elementary students into two classes and then taught Dorittle and Squeak programming languages for 6 weeks, respectively. We compare and analyze each logical thinking ability and its sub-classifications. The results showed that Dorritle affects significant improvement, but not Squeak.

• Journal of The Korean Association of Information Education
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• v.14 no.4
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• pp.547-553
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• 2010

Lately, studies on the educational effectiveness of educational programming language which can reduce the learning burden of the learners have been conducted in the programming learning process. This study analyzed the effect of programming education on the learning motivation and academic achievement after training the programming education using Scratch and Dolittle on the preliminary elementary school teachers. As a result, the experimental group trained by Scratch programming education showed significantly higher achievement than the control group by Dolittle Programming. This result can be helpful in selecting educational programming language when the programming education will be trained to the preliminary elementary school teachers.

• 한국정보교육학회:학술대회논문집
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• 2007.08a
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• pp.201-206
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• 2007

현재 컴퓨터 교육은 흥미와 실용위주의 컴퓨터 활용교육과 컴퓨터 소양교육에 치우쳐 있어 컴퓨터의 작동원리 등의 컴퓨터 과학을 이해하기에는 부족함이 많다. 특히 컴퓨터과학 분야 중 문제해결력, 논리적 사고력을 향상시키기 위한 프로그래밍 기초 교육은 보다 강조해야 한다. 본 연구에서는 객체지향형 교육용프로그래밍언어 두리틀을 초등학생들에게 프로그래밍을 지도할 수 있는 최적의 언어로 선정하고 다른 프로그래밍 언어와 비교 분석해 보았다. 그리고 자기 자신의 학습상황을 감독 관리하는 능력인 메타인지 수준에 따라 학습자를 분류한 후, 두리틀 프로그래밍 학습 후 논리적 사고와 그 하위논리의 효과, 그리고 메타인지 수준에 따른 논리적 사고와 그 하위 논리별로 미치는 영향을 분석하였다.