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Yamanaka Akira

Affiliate Master Yamaguchi University

Teaching approaches for measuring micro-scale objects using a handmade eyepiece and stage micrometers : a case study for STEAM education in on-demand and face-to-face biology laboratory classes

Bulletin of the Faculty of Education, Yamaguchi University Volume 73 Page 41-47
published_at 2024-01-31
教育学部_研究論叢-第73巻_007.pdf
[fulltext] 2.36 MB
Title
自作ミクロメーターを用いた微小物計測に関する指導法 : オンデマンドおよび対面方式による生物学分野の授業におけるSTEAM教育の一実践
Teaching approaches for measuring micro-scale objects using a handmade eyepiece and stage micrometers : a case study for STEAM education in on-demand and face-to-face biology laboratory classes
Abstract
In science classes, the use of a microscope evokes an enthusiastic and exciting response from students. When students attempt to gain an understanding of the size of samples under a microscope, micrometers of two types are generally required to measure sizes. An eyepiece micrometer contains an attached eyepiece lens, while a stage micrometer is placed on the stage to provide accurate information pertaining to length. When the magnification of the objective lens is changed, the scale of the eyepiece micrometer is changed. Hence, we need to measure the scale of the eyepiece micrometer before observation for each magnification. However, students can find this principle difficult to comprehend when calculating the ratio. In this study, we introduced teaching material demonstrating the eyepiece micrometer using a kitchen towel wick in an effort to explain the principle of scale when using a microscope. This approach should prove useful in helping to clarify the principle using simple material that students can easily make themselves. Finally, this method should facilitate an understanding of difficult concepts by encouraging students to experience changes in image size from different perspectives using familiar materials, or in other words, elements of “STEAM”.
Creators Kitazawa Chisato
Affiliate Master Yamaguchi University
[kakenhi]15501 grid.268397.1
Creators Yamanaka Akira
Affiliate Master Yamaguchi University
[kakenhi]15501 grid.268397.1
Source Identifiers [PISSN] 2433-3670 [NCID] AA12810513
Creator Keywords
Biology Measurement Micrometer Microscope STEAM education
Languages jpn
Resource Type departmental bulletin paper
Publishers Faculty of Education, Yamaguchi University
Date Issued 2024-01-31
File Version Version of Record
Access Rights open access