理科学習に有効な授業の要素について(VI) : 小学校6学年「物の燃え方と空気」の授業を通して

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小学校第6学年の児童を対象に「物の燃え方と空気」についての実験授業を実施し，学習で得た知識をもとにガスバーナーの操作について予想させ，燃えるという現象から実験で使用した装置と原理が共通であるというイメージを与えることの効果を検討した。事後テストの結果から，このような個々の現象面をつなぐイメージが与えられると，知識の保持という面で効果があることが示された。In order to elaborate the effective teaching skills in science lessons the analysis of two post-tests on vaious points of views have been performed in the experimental science classes of“the Function of Air in Combustion”in the sixth grade of elementary school.On the basis of the phenomenological knowledges that the chemical conditions essential for the combustion process satisfied well with the instrumental set up arrangedmade by handling the co-axial two valves,e.g.,fuel gas-inlet valve and air-inhalation valve,in order to make a flame skillfully on the Bunsen burner,the pupils in classes were directed so as to imagine and discuss together how to handle correctly the valves of Bunsen burner.The effectiveness of the imaging practice regarding the combustion phenomenon has been investigated through the analysis of the two post tests performed within 3 days as well as further 5 weeks later after the experimental science class.It was found that the pupils,experienced to image practice as to the commonality existing in the combustion phenomenon,are promoted to hold correct knowledges as to handling the burner for a long period of time.Brief discussion is devoted to emphasize the importance of the imaging practice combining the principle with the phenomenon as to the combustion to elaborate the effective teaching skills science lessons.
大阪教育大学の論文

理科学習に有効な授業の要素について(VI) : 小学校6学年「物の燃え方と空気」の授業を通して

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