• Journal of The Korean Association of Information Education
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• v.11 no.3
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• pp.359-369
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• 2007

Model-centered instruction which presents expert mental model before or during learning can facilitate and help novice learners' problem solving process. During six phases of cognitive apprenticeship model which is a method for applying model centered instruction theory, collaborative learning strategy can maximize articulation and reflection of novice learners. This article presents results of a study that investigated the effects of model-centered instruction and collaborative learning on the learning of instructional design process for pre-service teachers attending a computer education class at an education university.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.22 no.10
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• pp.2136-2149
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• 1997

This paper describes RISC core that has been designed for embedded and protable applications such as PDA or PCS. This RISC processor offers low power consumption and fast context switching. Processor performance is improved by using conditional instruction execution, block data transfer instruction, and multiplication instruction. This architecture is based on RISC principles. The processor adopts 3-stage instruction execution pipeline and has achieved single cycle execution using a 2-phase 40MHz clock. This results in a high instruction throughput and real-time interrupt response. This chip is implemented with $0.6{\mu}m$ triple metal CMOS technology and consists of about 88K transistors. The estimated power dissipation is 179mW.

• Journal of the Institute of Electronics Engineers of Korea SD
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• v.41 no.4
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• pp.83-90
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• 2004

In this paper, we proposed a new instruction set(X32Y ISA) with 3 different types of instruction mode. The proposed instruction set organizes 32-bit, 24-bit, 16-bit instruction in order to solves a problem of memory size limitation in an embedded microprocessor. We designed a 32-bit 5 stage pipeline RISC microprocessor based on the X32V ISA. To verify the proposed the X32V ISA and a microprocessor, we estimated a program code size of multimedia application programs using a X32V simulator. In result, we verified that the Light mode and the Ultra Light mode obtains 8%, 27% reduction of a program code size through comparison with the Default mode. The proposed microprocessor was verified all X32V instructions execution at Xilinx FPGA with 33MHz operating frequency,

• Journal of Korean Home Economics Education Association
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• v.14 no.3
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• pp.1-9
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• 2002

The objectives of this study were to measure the effect of Practical Reasoning Instruction in Home Economics : specifically. its effect on developing of critical thinking as well as to evaluate the degree of the critical thinking process. with reference to its sub-factors and the level. The research subjects were consisted of the experimental group of 119 freshman class female students from the “A” High School and the comparative group of 110 freshman class female student from the “C” High School in the city of Chung-Ju. This research was conducted under the pre-post test control group design. administering the Pre-Post testing to both the experimental and the comparative groups. The experimental group was subjected to Practical Reasoning Instruction in Home Economics : whereas the comparative group was taught under the lecture-Instruction in Home Economics The research findings are as follows: 1. Those who studied Home Economics under the Practical reasoning method scored higher on the critical thinking Process than the comparative group students who were taught Home Economics in the lecture-style approach. 2. The experimental group of students. who studied Home Economics under the Practical reasoning method. scored higher than the comparative group in their ability to perceive assumption and to render Judgment among the five sub-factors of their critical thinking processes.

• Journal of Engineering Education Research
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• v.19 no.2
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• pp.76-82
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• 2016

The purpose of this study is to identify core elements required of instruction consulting and to develop a systematic consulting procedure for successful Flipped Learning. The main contents of this study to achieve its purpose are as follows. First, core elements required of consulting are deduced by analyzing cases of instruction implemented with Flipped Learning. Second, consulting procedure is constructed based on core consulting elements of Flipped Learning. Based on the study results, the 3P process is suggested as the elements and procedure of instruction consulting for Flipped Learning. The 3P process has the following characteristics. The first stage Preparation involves guiding students to have an objective viewpoint about the lesson beginning with building a relationship with the instructor. Also, a lesson plan and source materials for lesson are selected and developed. The second stage Performance involves implementing lesson coaching oriented towards cooperative problem-solving to find better direction. The last stage Post-review involves introspection necessary for continuous quality improvement of lessons. The validity of the instruction consulting elements for Flipped Learning applied to deduce the aforementioned results has been verified after specialist review and field application.

• Journal of Korean Elementary Science Education
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• v.25 no.4
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• pp.396-406
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• 2006

In this study, elementary school students' science learning characteristics together with the levels of inquiry requirement in elementary school science experiment instruction were investigated in terms of the affective domain. We divided seventy-three students of the fifth ade into two groups according to the levels of inquiry requirement. After each instruction had been implemented, the characteristics of the students' learning in terms of the affective domain were compared and analyzed within the context of the levels of inquiry requirement. There were no significant differences between Level 1(LL) and Level 2(HL) groups in terms of the affective characteristics. These results may be caused by the burden imposed by the difficulty in thinking through and setting up the experimental methods. However, the HL group students' levels of interest in science experiments was higher than that of the LL group. In conclusion, the HL instruction contributed little to the improvement of affective characteristics. Some possible reasons might be that students felt difficulties with the somewhat unfamiliar instructions which required them to design and perform experiments. Higher levels of interest in science experiments amongst HL students' implies that well-organized and continuous exercises involving the design and performance of experiments could improve students' scientific affective characteristics.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.31 no.3
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• pp.331-340
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• 2021

As the communication industry develops, the development of SoC (System on Chip) is increasing. Accordingly, the paradigm of technology design of industries and companies is changing. In the existing process, companies purchased micro-architecture, but now they purchase ISA (Instruction Set Architecture), and companies design the architecture themselves. RISC-V is an open instruction set based on a reduced instruction set computer. RISC-V is equipped with ISA, which can be expanded through modularization, and an expanded version of ISA is currently being developed through the support of global companies. In this paper, we present benchmarking frameworks ARIA, LEA, and PIPO of Korean block ciphers in RISC-V. We propose implementation methods and discuss performance by utilizing the basic instruction set and features of RISC-V.

• Journal of Korean Elementary Science Education
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• v.38 no.4
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• pp.475-483
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• 2019

The purpose of this study was to investigate the effect of brainwriting instruction on students' experimental design and scientific communication ability in elementary science class. For this purpose, a brainwriting learning for science class was developed and applied. The objects of this study were the 4th graders of both an experimental class (24 students) and a comparative class (24 students) at the N elementary school located in Incheon city. The results of the study were as follows; First, as a result of examining the difference in the experimental design ability between experimental group and comparative group, the experimental group showed higher than the comparative group, it was statistically significant difference(p<.05). Second, a scientific communication ability of the experimental group after applying this program was higher, it was statistically significant differences (p<.05).

• The Journal of Korean Society for School & Community Health Education
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• v.10 no.2
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• pp.1-13
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• 2009

Objectives: This study is a quasi-experimental research with nonequivalent control group pretest-posttest design study to compare and verify the educational effects between CPR Song.Video Self-Instruction and CPR VSI. Method: We selected total 58 subjects who were freshmen at the Dept of Emergency Medical technology, G College in G Metropolitan City and 28 of them were experimental group which had no experience to have CPR instruction and consented to take part in this research and 30 students were control group. Data were collected from Apr. 27 to 29, 2009. Data were analyzed with SPSS/PC+(version 14.0). and all significance level was set as p<0.05. Results: 1. In the knowledge of CPR, the knowledge level before CPR instruction was 2.17 out of 10 in experimental group and 1.86 in control group. After CPR instruction, experimental group got 9.07 and it meant the increase of 6.89 and control group showed increase to 7.16(p=0.000). 2. Self-efficacy of CPR showed 2.61 out of 10 in both experimental and control groups, and after CPR instruction, experimental group showed increase of 3.93 as 6.55 and control group showed increase of 3.91 as 6.52(p=0.000). 3. Accuracy of CPR performance was 0.32 out of 10 in experimental group and 0.40 in control group. After CPR instruction, experimental group got 9.25 and showed increase of 8.92 and control group got 9.20 and showed increase of 8.80(p=0.000). 4. Study satisfaction was 4.22 out of 5 in experimental group and 3.04 in control group, and experimental group was higher than control group. there was no statistically significant difference. Conclusions: This study found that CPR Song；Video Self-Instruction achieved better results than CPR VSI. With these results, it is considered that CPR instruction for college students through mass communication or video will be very helpful.

• The Journal of Korean Association of Computer Education
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• v.10 no.1
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• pp.9-19
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• 2007

Recently, since the importance of the information communication ethics education for primary and secondary schools has being highlighted, researches and new instructional materials have been published actively. On the other hand, with the advance of e-learning, the various kinds of educational methods which consider the characteristics and the requirement of students are being developed. The educational method for Information Communication Ethics education is no exception. If the practical method for Information Communication Ethics education which considers students' requirements is developed, then a better educational effect can be acquired. In this paper, we decompose instructional design features into 4 components such as goal, model, contents, and media in order to design a better instruction for Information Communication Ethics education. And then, we analyze the relative importance of the instructional design components by using Conjoint method based on our questionnaire result. Finally, we propose an instructional design method for Information Communication Ethics as well as examine the differences among the instructional design components.