中小學「氧化與還原」主題概念單元的深廣度研究

REDUCTION CONCEPT CONCERNING ITS DEPTH

本研究收集與分析國內外（中、美、英、日）各階段（小學至高中）自然課程中關於「氧化還原」主題概念之實驗，研討其所包含的化學概念，建立主題概念的發展 順序。分析與比較其所含的科學技能、科學過程與科學態度，並探討實驗活動與概念的銜接問題。特別針對有關「量的處理」的實驗活動進行實做評鑑，獲得具體結 果並提供建議。

A study on improvement of experimental activities in the chemistry curricula of primary school through senior high school has been made. The correlation and the sui-tability of each experiment were evaluated by the following cirteria: (a) Relevance of data produced to the concept for the particular learning level， (b) Correlation of experiments for the same concept at different learning levels， (c) The level of cognitive development of the students， (d) Previously acquired learning of the students， and (e) Safety， simplicity， and economy (both of money and of class time).The key experimental activities of the acid-base-concept on the major curricula (R.O.C.， Japan， U.S.A.， England) were reviewed.