• 한국과학교육학회지
• /
• 제22권4호
• /
• pp.872-881
• /
• 2002

질문은 학생들에게 문제의 탐색과 의사소통, 지식의 구조화를 통해서 문제해결이 가능하도록 하므로, 과학 교육에서 큰 의미를 가진다. 또한 학생 질문은 사고와 학습 사이를 연결해 준다는 점에서도 중요한 의미를 가진다. 그러나 학생의 질문에 대해서 분석하고 연구한 연구는 그렇게 많지 않았다. 따라서 본 연구에서는 질문 수준 강화 수업이 전통적인 수업에 비해 학생들의 질문 수준과 학업 성취도에 어떤 효과가 있는지 알아보았다. 또한 논리적 사고력, 과학 성적, 흥미, 성별과 같은 여러 변인들이 학생의 질문 수준에 미치는 영향에 대해서도 알아보았다. 연구 대상은 중학교 2학년 학생 182명으로, 통제집단은 전통적인 수업을 하였고, 실헙집단은 질문 수준 강화 수업을 하였다. 연구단원은 중학교 과학 2 "식물의 구조와 기능"으로 약 7주 동안 15차시에 걸쳐 수업 처치를 하였다. 학생들의 논리적 사고력 수준을 파악하기 위하여 GALT 축소본 검사지를 사용하였고 학업 성취도 검사는 17문항의 오지선다형문항을 개발하여 사용하였다. 질문 수준에 대한 여러 변인(수업방법, 과학 성적, 논리적 사고력, 흥미, 성별)의 효과를 분석하기 위해 오원 분산분석(ANOVA), 공변량 분석(ANCOVA), 다중회귀분석(Multiple regression analysis)을 하였다. 학생들의 질문 수준을 분석해 본 결과, 질문 강화 수업이 전통적인 수업에 비해 학생들의 질문 수준을 향상시키는데 효과적이었다(p< .01). 학생의 질문 수준과 상관 관계가 가장 높은 것은 수업 방법(r= .640)이었으며, 질문 수준은 과학 성적(r= .311)과 논리적 사고력(r= .212)에도 상관이 있었다. 그러나 질문 수준은 흥미와 성별에는 상관이 거의 없었다. 질문 강화 수업은 학생들의 학업 성취도를 향상시키는데 전통적인 학습보다 효과적이었다(p< .01). 따라서 질문 강화 수업은 학생들의 질문 수준뿐만 아니라 학업 성취도에도 높은 효과를 나타내었으므로 바람직한 수업방법이라고 생각된다.

• 초등상담연구
• /
• 제8권1호
• /
• pp.33-50
• /
• 2009

본 연구는 학생들이 진로와 관련된 실제적이고 맥락적인 문제를 해결하는 과정에서 자신의 적성, 흥미, 성격 등에 대한 정확한 이해를 하고 다양한 직업세계를 탐구할 수 있는 PBL(문제중심학습) 기반 진로교육 프로그램을 개발하여 초등학생들의 진로성숙도에 미치는 효과를 검증하는데 목적이 있다. PBL 기반진로교육 프로그램을 개발하는 과정은 먼저 아동들의 발달 특성 및 요구분석을 거쳐 과제 분석을 실시하고 수행목표를 진술한 뒤, 이를 토대로 프로그램의 핵심 구성요소인 PBL 문제를 개발하고 그 타당성을 검토하였다. 다음으로 프로그램 각 영역별 문제해결과정 및 결과발표에 대한 평가계획 및 평가도구를 제작하고 온라인 학습공간을 설계하였다. 이렇게 개발된 프로그램은 매 회기 40분 단위의 총 21개 회기로 구성되어 초등학교 5학년에 8주 동안 실시되었고 연구결과는 다음과 같다. PBL 기반 진로교육 프로그램에 참여한 실험집단은 통제집단에 비하여 사후검사에 있어서 진로태도와 진로태도의 하위요인(계획성, 성향, 타협성), 진로능력과 진로능력의 하위요인(직업의 이해능력, 자신의 이해능력, 의사결정능력)이 유의미하게 향상되었다. 또한 검사지 반응 분석 결과의 보완을 위한 내용 분석 결과, 학생들은 프로그램의 각 영역별로 제시되는 PBL 문제를 팀을 이루어 해결하고 발표하는 과정을 통하여 객관적으로 자신을 이해하고 일과 직업세계에 관한 다양하고 질이 있는 지식을 쌓게 되었다고 보고하였다. 본 연구의 결과 연구자가 개발한 PBL 기반 진로교육 프로그램은 학생들이 자신에 대한 객관적 이해와 의사결정능력의 향상,모둠원간의 활발한 상고작용과 토의가 이루어지도록 하여 초등학생의 진로태도와 진로능력 의 향상에 긍정적인 영향을 미쳤다. 이는 초등학생의 진로교육에 있어 자율적인 학습태도와 주체의식이 자신의 미래를 탐색하고 개발하고 개척할 수 있는 기회와 경험을 제공하는데 매우 중요하다는 것을 의미한다.

• 한국간호교육학회지
• /
• 제3권
• /
• pp.78-98
• /
• 1997

Health education, as the most fundamental concept for national health promotion, alms for developing the self-care ability of the general public. High school days are regarded as the period when most important physical, mental and social developments occur, and most health-related behaviors are formed. School health education is one of the major learning resources influencing health potential in the home and community as well as for the individual student. High school health education in Korea has a fundamental systemic flaw in that health-related subjects are divided and taught under various subjects areas at school. In order to achieve the goal of school health education, it is essential to make a systematic assessment of the learner's concerns connected with his health and life, and the factors affecting them. So far, most of the research projects that had been carried out for improving high school health education were limited in their concerns to a particular aspect of health. Even though some had been done in view of comprehensive school health education, they failed to Include a health assessment of the learner. Therefore, in this study the high school students' concerns related to health and life were investigated in the first place on the basis of the PRECEDE model, developed by Green and others for the purpose of a comprehensive diagnostic research on high school health education. This study was done in two steps : one was the basic study for developing research instrument and the other was the main one. The former was conducted at five high schools in Seoul and Cheongju for 2 months-beginning in March, 1996. The students were asked to respond to questions related to their health and lives in unstructured open-ended question forms. On the basis of analysis of the basic study, the diagnostic instruments for the quality of life, health problems, health behavior and educational factors were constructed to be used for the collection of data for main study. An expert panel and the pilot study were used to improve content validity and reliability of the instruments. The reliability of the instruments was measured at between .7697 and .9611 by the Cronbach $\alpha$. The data for this study were collected from the sample consisted of the junior and senior classes of twenty general and vocational high schools in Seoul and Cheongju for two months period beginning in July, 1996. In analyzing the data, both t-test and $X^2$-test were done by using SAS-$PC^+$ Program to compare data between the sexes of the high school students and the types of high school. A canonical correlation analysis was carried out to determine the relationships among the diagnostic variables, and a multivariate multiple regression analysis was conducted by using LISREL 8.03 to ascertain the influences of variables on the high school students' health and quality of life. The results were as follows : 1) The findings of the hypothesis tests (1) The canonical correlation between the educational diagnosis variables and behavioral, epidemiological, social diagnosis variables was .7221, which was significant at the level of p<.001. (2) The canonical correlation between the educational diagnosis variables and the behavior variables was .6851, which also was significant (p<.001). (3) The canonical correlation between the behavioral diagnosis variables and the epidemiological variables was 4295, which was significant (p<.001). (4) The canonical correlation between the epidemiological diagnosis variables and the social variables was .6005, which was also significant (p<.001). Therefore, the relationship between each diagnosis variable suggested by the PRECEDE model had been experimentally proven to be valid, supporting the conceptual framework of the study as appropriate for assessing the multi-dimensional factors affecting high school students' health and quality of life. Health behavior self-efficacy, the level of parents' interest and knowledge of health, and the level of the perception of school health education, all of which are the educational diagnostic variables, are the most influential variables in students' health and quality of life. In particular, health behavior self-efficacy, a causative factor, was one of the main influential variables in their health and quality of life. Other diagnostic variables suggested in the steps of the PRECEDE model were found to have reciprocal relations rather than a unidirectional causative relationship. The significance of this research is that it has diagnosed the needs of high school health education by the learner-centered assessment of variety of factors related to the health and the life of the students. This research findings suggest an integrated system of school health education to be contrived to enhance the effectiveness of the education by strengthening the influential factors such as self-efficacy to improve the health and quality of the lives of high school students.

• Asia pacific journal of information systems
• /
• 제19권2호
• /
• pp.179-193
• /
• 2009

As the common saying attests, a publish-or-perish world, publishing is absolutely critical for academic researchers' successful careers. It is the most objectively-accepted academic performance criteria and the most viable way to attain public and academic recognition. Asia Pacific Journal of Information Systems(APJIS) has been recognized as the most influential domestic journal in Korean MIS field since July, 1991. Therefore, publishing in APJIS means your research is original, valid, and contributive. While most researchers learn how to publish an article in APJIS through a repetitive review process, thereby improving their chance of the' accepted' through their personal trial and error experiences, such valuable lessons and know-how tend to be kept personally and rarely shared. However, useful insights into research and publication skills could be also gained from sharing others' errors, neglect, and misjudgments which are equally critical in improving researchers' knowledge in the field (Murthy and Wiggins, 2002). For this reason, other academic disciplines make systematic efforts to examine the paper review process of major journals and share the findings from these studies with the rest of the research community members (Beyer et al., 1995; Cummings et al, 1985; Daft, 1995; Jauch and Wall, 1989; Murthy and Wiggins, 2002). Recognizing the urgent need to provide such type of information to MIS research community in Korea, we have chosen the most influential academic journal, APJIS with an intention to share the answer to the following research question: "What are the common problems found in the manuscripts either 'rejected' or 'required a major revision' by APJIS reviewers?" This study analyzes the review results of manuscripts submitted to APJIS (from January, 2006 to October, 2008), particularly those that were 'rejected' or required a 'major revision' at the first round. Based on Daft's(1995) study, twelve most-likelihood problems were defined and used to analyze the reviews. The twelve criteria for classification, or "twelve problems", are as follows: No theory, Concepts and operationalization not in alignment, Insufficient definition--theory, Insufficient rationale--design, Macrostructure--organization and flow, Amateur style and tone, Inadequate research design, Not relevant to the field, Overengineering, Conclusions not in alignment, Cutting up the data, and Poor editorial practice. Upon the approval of the editorial board of APJIS, the total 252 reviews, including 11 cases of 2005 and 241 cases from July, 2006 to October, 2008, were received without any information about manuscripts, authors, or reviewers. Eleven cases of 2005 were used in the pilot test because the data of 2005 were not in complete enumeration, and the 241 reviews (113 cases of 'rejection' and 128 ones of 'major revision') of 2006, 2007, and 2008 were examined in this study. Our findings show that insufficient rationale-design(20.25%), no theory(18.45%), and insufficient definition--theory(15.69%) were the three leading reasons of 'rejection' and 'major revision.' Between these two results, the former followed the same order of three major reasons as an overall analysis (insufficient rationale-design, no theory, and insufficient definition-theory), but the latter followed the order of insufficient rationale--design, insufficient definition--theory, and no theory. Using Daft's three major skills-- 'theory skills', 'design skills', and 'communication skills'-- twelve criteria were reclassified into 'theory problems', 'design problems', and 'communication problems' to derive more practical implications of our findings. Our findings show that 'theory problems' occupied 43.48%, 'design problems' were 30.86%, and 'communication problems' were 25.86%. In general, the APJIS reviewers weigh each of these three problem areas almost equally. Comparing to other disciplines like management field shown in Daft's study, the portion of 'design problems' and 'communication problems' are much higher in manuscripts submitted to the APJIS than in those of Administrative Science Quarterly and Academy of Management Journal even though 'theory problems' are the most predominant in both disciplines.

• 한국터널지하공간학회 논문집
• /
• 제22권5호
• /
• pp.591-610
• /
• 2020

활성탄(Activated carbon) 및 이산화티탄(TiO₂)이 혼합된 콘크리트는 질소산화물(NOx) 저감에 있어 우수한 성능을 나타내기 때문에 지하공간 및 터널 내부의 미세먼지 저감 목적으로 활용되고 있다. 환경 및 구조물 노후 영향으로 터널 내부에 설치된 미세먼지 저감 콘크리트 표면에서 손상이 발생된다. 따라서 미세먼지 저감 콘크리트의 성능 유지를 위해 손상(박리) 유무평가가 필요하다. 본 연구에서는 전기비저항 특성을 이용하여 콘크리트 박리 유무 평가를 위한 기초연구를 수행하였다. 활성탄(0~15%) 및 TiO₂ (0~25%) 혼합비(시멘트 중량 기준)가 증가함에 따라 전기비저항 값은 감소하였다. 건조 조건에서 활성탄 및 TiO₂가 혼합된 시멘트 경화시편은 일반 시멘트 경화시편보다 전기비저항 값이 최대 2.3배 감소되었다. 또한, 포화 조건(포화도 = 85~98%)에서 활성탄만 혼합된 경화시편은 일반 시멘트 경화시편보다 전기비저항 값이 최대 3.5배 감소하는 결과를 보였다. 시편 상태(건조 또는 포화)와 관계없이 활성탄(15%) 및 TiO₂ (25%)가 혼합된 미세먼지 저감 시편의 경우, 일반 시멘트 시편과 비교하여 전기비저항 값은 약 2.3~2.8배 차이를 보였다. 본 연구결과는 전기비저항을 이용하여 터널 내 미세먼지 저감 콘크리트의 박리를 평가하기 위한 기초자료로 유용하게 활용될 것으로 기대된다.

• Asia pacific journal of information systems
• /
• 제21권4호
• /
• pp.45-62
• /
• 2011

The notion of information systems (IS) continuance has recently emerged as one of the most important research issues in the field of IS. A great deal of research has been conducted thus far on the basis of theories adapted from various disciplines including consumer behaviors and social psychology, in addition to theories regarding information technology (IT) acceptance. This previous body of knowledge provides a robust research framework that can already account for the determination of IS continuance; however, this research points to other, thus-far-unelucidated determinant factors such as habit, which were not included in traditional IT acceptance frameworks, and also re-emphasizes the importance of emotion-related constructs such as satisfaction in addition to conscious intention with rational beliefs such as usefulness. Experiences should also be considered one of the most important factors determining the characteristics of information system (IS) continuance and the features distinct from those determining IS acceptance, because more experienced users may have more opportunities for IS use, which would allow them more frequent use than would be available to less experienced or non-experienced users. Interestingly, experience has dual features that may contradictorily influence IS use. On one hand, attitudes predicated on direct experience have been shown to predict behavior better than attitudes from indirect experience or without experience; as more information is available, direct experience may render IS use a more salient behavior, and may also make IS use more accessible via memory. Therefore, experience may serve to intensify the relationship between IS use and conscious intention with evaluations, On the other hand, experience may culminate in the formation of habits: greater experience may also imply more frequent performance of the behavior, which may lead to the formation of habits, Hence, like experience, users' activation of an IS may be more dependent on habit-that is, unconscious automatic use without deliberation regarding the IS-and less dependent on conscious intentions, Furthermore, experiences can provide basic information necessary for satisfaction with the use of a specific IS, thus spurring the formation of both conscious intentions and unconscious habits, Whereas IT adoption Is a one-time decision, IS continuance may be a series of users' decisions and evaluations based on satisfaction with IS use. Moreover. habits also cannot be formed without satisfaction, even when a behavior is carried out repeatedly. Thus, experiences also play a critical role in satisfaction, as satisfaction is the consequence of direct experiences of actual behaviors. In particular, emotional experiences such as enjoyment can become as influential on IS use as are utilitarian experiences such as usefulness; this is especially true in light of the modern increase in membership-based hedonic systems - including online games, web-based social network services (SNS), blogs, and portals-all of which attempt to provide users with self-fulfilling value. Therefore, in order to understand more clearly the role of experiences in IS continuance, analysis must be conducted under a research framework that includes intentions, habits, and satisfaction, as experience may not only have duration-based moderating effects on the relationship between both intention and habit and the activation of IS use, but may also have content-based positive effects on satisfaction. This is consistent with the basic assumptions regarding the determining factors in IS continuance as suggested by Oritz de Guinea and Markus: consciousness, emotion, and habit. The principal objective of this study was to explore and assess the effects of experiences in IS continuance, with special consideration given to conscious intentions and unconscious habits, as well as satisfaction. IN service of this goal, along with a review of the relevant literature regarding the effects of experiences and habit on continuous IS use, this study suggested a research model that represents the roles of experience: its moderating role in the relationships of IS continuance with both conscious intention and unconscious habit, and its antecedent role in the development of satisfaction. For the validation of this research model. Korean university student users of 'Cyworld', one of the most influential social network services in South Korea, were surveyed, and the data were analyzed via partial least square (PLS) analysis to assess the implications of this study. In result most hypotheses in our research model were statistically supported with the exception of one. Although one hypothesis was not supported, the study's findings provide us with some important implications. First the role of experience in IS continuance differs from its role in IS acceptance. Second, the use of IS was explained by the dynamic balance between habit and intention. Third, the importance of satisfaction was confirmed from the perspective of IS continuance with experience.

• 한국식품조리과학회지
• /
• 제28권2호
• /
• pp.207-214
• /
• 2012

양배추 김치를 직접 제조하여 PET vessel, PP tray, OPP/AL/PE 그리고 Nylon/PE/LLDP 4가지 포장재에 소포장하여 $4^{\circ}C$ 저장온도에서 김치 품질 특성을 결정하는 젖산균수, 염도, 당도, pH, 산도, 전자공여능 그리고 관능특성 변화를 살펴보았다. pH 변화는 담금 직후 pH 6.24~6.43 범위로 저장 7일째까지 큰 변화를 보이지 않았으나 7일부터 14일까지 급격히 낮아졌으며 산도는 저장 35일째까지 계속 증가하여 PET vessel는 0.79%, OPP/AL/PE는 0.83%로 나타났고 그 이후 큰 변화를 보이지 않았다. 염도는 저장기간 중에 큰 변화를 보이지 않았으며 당도는 전반적으로 4종류의 포장재 모두 증가하다가 저장 7일째를 기준으로 그 이후 감소하는 경향을 보였다. 젖산균수는 OPP/AL/PE에 저장되었던 양배추 김치가 저장 14일째 이후 가장 높게 나타났으며 전자공여능은 발효 적기에 가장 높았다가 발효적기를 지나면서 모든 포장재가 감소하는 경향을 보였으나 OPP/AL/PE는 최고 93.18%이후에도 높은 수준의 항산화능을 나타냈다. 관능특성은 생김치보다 익은 김치가 우수하였으며, OPP/AL/PE 14일째의 양배추 김치는 맛과 종합기호도에서 6.70과 6.60를 나타내 OPP/AL/PE 포장재가 양배추 소포장김치의 상품화를 위해 가장 적절한 포장재로 판단된다. 향후 양배추 소포장 김치의 산업화를 위해서는 배추김치나 중대형포장과 비교하여 원료에 따른 특성과 소포장이라는 차이를 고려하여 차별적인 제조 공정이 개발되어야 할 것이다.

• Journal of Hospice and Palliative Care
• /
• 제13권3호
• /
• pp.169-180
• /
• 2010

목적: 본 연구는 죽음교육 참여자들의 죽음인식, 생의 의미, 죽음에 대한 태도 정도를 확인하기 위해 수행되었다. 방법: 서술적 조사연구로서 연구변수 측정을 위해 타당도와 신뢰도 검증을 거친 도구를 이용하였으며 연구대상자는 본 연구 참여를 허락한 270명이었으며, 최종 분석에 사용된 설문지는 205부가 활용되었다. 결과: 본 연구대상자들의 죽음인식 특성은 절반 이상에서 자신의 죽음을 생각해 본 경험이 있었으며 죽음수용에 대한 의사를 가졌고 죽음을 생각하게 된 이유는 질병과 자원봉사 경험이 관련이 되었다. 죽음 수용이 어려운 이유로 가족과의 이별 및 염려, 고통 등이 높게 나타났으며, 자신의 죽음에 대한 의논은 배우자, 친구, 자녀 순으로 높게 나타났으며 가장 희망하는 장례유형은 화장이었다. 자신의 생의 의미를 지각하는 정도는 다소 높게 나타났으며 자신의 죽음에 대해서 보통 이상에서 긍정적인 태도를 가지고 있었다. 생의 의미와 죽음에 대한 태도와는 순 상관관계를 보여 생의 의미가 높을수록 죽음에 대한 태도도 긍정적임이 파악되었다. 결론: 본 연구결과 죽음 교육 참여자들의 생의 의미와 죽음에 대한 태도는 긍정적인 상관관계를 보였으며 자신의 죽음을 준비하고 수용하는 정도는 질병과 자원봉사 경험과 관련이 있었다. 또한 죽음 수용의 어려움과 죽음준비교육이 필요로 되는 영역에서 공통적으로 파악된 점은 죽음에 대한 불안을 줄이는 방법, 이별과 사별 슬픔 극복 방법, 삶의 죽음의 의미 등에서 높은 빈도를 보였다. 대상자의 요구에 맞는 죽음 교육을 위해서는 자신의 삶과 죽음의 진정한 의미를 발견할 수 있고, 죽음의 불안과 두려움을 경감시키기 위한 지식, 가족과의 이별과 사별치유를 도울 수 있는 교육내용이 필수적으로 반영되어야 한다고 생각한다.

• 기독교교육논총
• /
• 제62권
• /
• pp.313-334
• /
• 2020

교육의 한 요소로써 교육공간은 교육의 목적과 분리될 수 없다. 교육공간은 교육과정을 실행하는 통로일 뿐 아니라 교육내용을 통해 달성하고자 하는 목적 그 자체이다. 이는 교사와 학생, 교육내용, 방법만 가지고는 충실하게 교육의 목적을 달성할 수 없고 이를 수행하고 대변할 수 있는 교육공간에 대한 인식의 변화가 필요하다. 그러나 공간에 대한 문제는 간과하기 쉬운 주제이고 이를 재정이나 교회 규모에 관한 쟁점으로 미뤄두고 있다. 교회 교육공간은 신앙이 잉태되고 자라는 영적 발달과 경험이 일어나는 곳이다. 그러나 현실은 학교 교실 공간의 배열과 구조가 가진 문제점을 그대로 답습하고 있으며 교회 교육공간을 학습자 중심으로 구성한다고 할지라도 획일적이고 일반적인 형태에서 벗어나지 못하고 있다. 특히 학교 교실과 비슷한 교회 교육공간은 의자, 책상 등의 가구 배열이나 물리적 형태의 기본환경이 유사하다. 이는 지식전수, 획일주의 등의 목적에 적합하게 기획된 것이므로 교회 교육공간은 이를 지양해야 한다. 인간은 공간에서 태어나고 죽을 뿐 아니라 하나님과의 만남도 공간에서 일어난다. 그리고 하나님과의 교통은 인간에게 공간적 회심을 일으켜 방문하는 곳이 달라지게 한다. 그래서 교회의 교육공간이 학교 교실보다 더 세심하고 포괄적이어야 하는 것은 교회공간이 물리적, 교육적, 심리적, 사회적, 예술적 목적을 추구하는 학교와 달리 이 모든 것에 예전적 요소까지 포함하고 있기 때문이다. 그러므로 기독교적 환경구성은 교회를 방문하는 사람에 대한 공간적 배려, 기독교 예술작품이나 상징물 등을 배치함으로 신앙교육의 환경 조성, 공간이 지닌 기독교적 정체성인 예전성을 통해 기독교적 공간의 특성을 추구해야 한다. 이에 본 연구는 신앙 발달을 위한 공간의 역할이 있음을 강조하고 내·외재적 교육환경의 변화를 추구함으로 공간문제에 교육적 관심을 기울이는데 이바지하고자 한다.

• 한국작물학회지
• /
• 제47권
• /
• pp.63-94
• /
• 2002

On the purpose to suggest an advanced scheme in assessing the domestic wheat quality, this paper reviewed the inspection systems of wheat in major wheat producing countries as well as the quality criteria which are being used in wheat grading and classification. Most wheat producing countries are adopting both classifications of class and grade to provide an objective evaluation and an official certification to their wheat. There are two main purposes in the wheat classification. The first objectives of classification is to match the wheat with market requirements to maximize market opportunities and returns to growers. The second is to ensure that payments to glowers aye made on the basis of the quality and condition of the grain delivered. Wheat classes has been assigned based on the combination of cultivation area, seed-coat color, kernel and varietal characteristics that are distinctive. Most reputable wheat marketers also employ a similar approach, whereby varieties of a particular type are grouped together, designed by seed coat colour, grain hardness, physical dough properties, and sometimes more precise specification such as starch quality, all of which are genetically inherited characteristics. This classification in simplistic terms is the categorization of a wheat variety into a commercial type or style of wheat that is recognizable for its end use capabilities. All varieties registered in a class are required to have a similar end-use performance that the shipment be consistent in processing quality, cargo to cargo and year to year, Grain inspectors have historically determined wheat classes according to visual kernel characteristics associated with traditional wheat varieties. As well, any new wheat variety must not conflict with the visual distinguishability rule that is used to separate wheats of different classes. Some varieties may possess characteristics of two or more classes. Therefore, knowledge of distinct varietal characteristics is necessary in making class determinations. The grading system sets maximum tolerance levels for a range of characteristics that ensure functionality and freedom from deleterious factors. Tests for the grading of wheat include such factors as plumpness, soundness, cleanliness, purity of type and general condition. Plumpness is measured by test weight. Soundness is indicated by the absence or presence of musty, sour or commercially objectionable foreign odors and by the percentage of damaged kernels that ave present in the wheat. Cleanliness is measured by determining the presence of foreign material after dockage has been removed. Purity of class is measured by classification of wheats in the test sample and by limitation for admixtures of different classes of wheat. Moisture does not influence the numerical grade. However, it is determined on all shipments and reported on the official certificate. U.S. wheat is divided into eight classes based on color, kernel Hardness and varietal characteristics. The classes are Durum, Hard Red Spring, Hard Red Winter, Soft Red Winter, Hard White, soft White, Unclassed and Mixed. Among them, Hard Red Spring wheat, Durum wheat, and Soft White wheat are further divided into three subclasses, respectively. Each class or subclass is divided into five U.S. numerical grades and U.S. Sample grade. Special grades are provided to emphasize special qualities or conditions affecting the value of wheat and are added to and made a part of the grade designation. Canadian wheat is also divided into fourteen classes based on cultivation area, color, kernel hardness and varietal characteristics. The classes have 2-5 numerical grades, a feed grade and sample grades depending on class and grading tolerance. The Canadian grading system is based mainly on visual evaluation, and it works based on the kernel visual distinguishability concept. The Australian wheat is classified based on geographical and quality differentiation. The wheat grown in Australia is predominantly white grained. There are commonly up to 20 different segregations of wheat in a given season. Each variety grown is assigned a category and a growing areas. The state governments in Australia, in cooperation with the Australian Wheat Board(AWB), issue receival standards and dockage schedules annually that list grade specifications and tolerances for Australian wheat. AWB is managing "Golden Rewards" which is designed to provide pricing accuracy and market signals for Australia's grain growers. Continuous payment scales for protein content from 6 to 16% and screenings levels from 0 to 10% based on varietal classification are presented by the Golden Rewards, and the active payment scales and prices can change with market movements.movements.