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중등 및 대학 교재 중 산화-환원반응에 대한 연계성 연구
김효겸,문성배,Kim, Hyo-Kyum,Moon, Seong-Bae 대한화학회 2000 대한화학회지 Vol.44 No.2
본 연구는 중학교 과학 교과서( 제5차 및 제6차 교육 과정), 고등학교 화학 교과서(제5차 교육과정) 및 대학 일반화학에서 화학 관련 부분 중 산화와 환원반응을 중심으로 이 학습 내용이 학생들의 사고력을 향상시키는 데 도움이 되는 적절한 연계성을 갖고 있는지를 분석하였다. 먼저 각급 학교간 배당 시간수의 차이 및 교과서 설명의 차이를 비교하였으며, 연계성 판별을 위하여 준거의 기준을 5가지로 수립하여 분석한 결과는 중학교에서 고등학교 과정의 연계시 다소 격차가 있었지만 고등학교에서 대학교 과정의 연계는 무난한 것으로 나타났다 . 이 분석결과를 이용하여 수업의 효율성을 도모하기 위하여 중등 및 대학에 이르기까지 일관된 연계성을 갖춘 각급 학교간의 새로운 교과내용 구조도를 제시하였다. The content of oxidation-reduction in the chemistry textbooks from middle school to college was analyzed about the effective connection of curricular articulation. The classification was divided from five groups of 'first concept', 'same concept', 'overlap', 'development', and 'gap'. As a results, there was a deep big gap from middle school to high school and the effectiveness from high school to college was quite acceptable. Finally, the flow map, consisted of each concept between the school unit, was suggested.
김효겸,이학영,주기재 한국조류학회I 2019 ALGAE Vol.34 No.2
Habitat-forming species increase spatial complexity and alter local environmental conditions, often facilitating theassembly of plants and animals. We conducted a trait-based approach to algal assemblages associated with the freshwaterbryozoan, Pectinatella magnifica. Association with algae leads to the inner bodies of the bryozoans being coloredgreen; this is frequently observed in the large rivers of South Korea. We collected the green-colored gelatinous matricesand phytoplankton from waterbodies of the two main rivers in South Korea. Algal assemblages within the coloniesand in the waterbodies were compared using the three diversity indices (richness, diversity, and dominance), and thecomposition of functional groups (FGs) and morphologically based functional groups (MBFGs) between the colonieswithin and outside of P. magnifica colonies. The most dominant and common species within the colonies were Oscillatoriakawamurae and Pseudanabaena catenata, both of which were assigned to the same FG (codon S1). Of the algalassemblages within the colonies, the dominance was higher, while the richness and diversity were lower, than those inthe waterbodies. There was variation in the compositions of FGs and MBFGs in the waterbodies outside the colonies. Total nitrogen and orthophosphate led to dominance, and were significant factors for the variation in FGs in the waterbodies,whereas there were no such significant factors within the colonies. This trait-based approach to the communitystructure of associated algae provides the status and habitat gradient of these communities, which are stable, isolated,and consistent with the overgrowth of shade-adapted tychoplanktonic cyanobacteria.