A Survey of Anatomical Exercise in the Lower Secondary School Science Classes and the Anatomical Exercise of “Groups of animals” by the 2<sup>nd</sup> Grade Lower Secondary School Science

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  • SAIKI Hideto
    Faculty of Education,Yamaguchi University
  • OKINO Kosuke
    Faculty of Education,Yamaguchi University Present address: Tondanishi Elementary School

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  • 中学校理科における解剖実習の実態と第 2 学年「動物の仲間」における解剖実習
  • チュウガッコウ リカ ニ オケル カイボウ ジッシュウ ノ ジッタイ ト ダイ2 ガクネン 「 ドウブツ ノ ナカマ 」 ニ オケル カイボウ ジッシュウ

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Abstract

A new class of “Invertebrate animals” was introduced in the unit “Groups of animals” in 2nd grade lower secondary school, and then anatomical exercise methods were described in their science texts.<br>In this study, how the actual anatomical exercises were carried out in the secondary school science classes from2008 to 2012 were investigated. As a result, recently, anatomical exercises were actually conducted in the 2nd grade, and mainly cuttlefish “Decapodiformes” and Japanese littleneck “Ruditapes philippinarum” were used in the classes.<br>Additionally, it was found that the students expanded their knowledge about region and organs through observation.The following 3 points were found by checking students’ consciousness and knowledge changes.<br>1. After the anatomical exercise using sagittated calamari “Todarodes pacificus” and Japanese littleneck, students’ consciousness about anatomical did not change either positively or negatively.<br>2. At the end of the unit, there were no significant differences in students’ understanding of vertebrate animals; however, there were significant differences in understanding of invertebrate animals among grades.<br>3. The Study of “Invertebrate animals” was not definitely effective with an increase in students’ interest in animal group classification. However, the study of “Invertebrate animals” was effective in keeping the students’ already high consciousness of loving and protecting living things.

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