দᖒ ๕ত1,a) མ߹ ر1,b) ᜊ౻ ರً1,c) ଜా ٛ1,d) ड 20213݄29ɼ࠶ड 20219݄9, ࠾ 202110݄30 ֓ཁɿ2020 ৽ܕίϩφΟϧεײછ֦େࢭͷ؍͔ΒɼڭҭݱͰ ICT Λར༻ͨ͠ϑϧɾΦϯ ϥΠϯͰͷतۀ࣮ࢪ͕ٻΊΒΕΔੈͱͳͬͨɽຊݚڀͰେֶͰͷϓϩάϥϛϯάಋೖڭҭʹ͓͍ͯɼ ͜Ε·Ͱର໘ԋशͰߦ͖ͬͯͨڭһʢTAʣ –ֶੜؒͰͷີͳίϛϡχέʔγϣϯΛଛͳ͏͜ͱͳ͘तۀΛ ల։͢Δ͜ͱΛతʹɼWebRTC ٕज़Λ༻͍ͨΦϯϥΠϯ্ͰͷίϯϐϡʔςΟϯά࣮शࢧԉγεςϜ ʮCreCoSpeekʯͷ։ൃͱतۀ࣮ફΛߦͬͨɽຊγεςϜͷઃܭඪɼ(1) ڭһֶ͕ੜୡͷ࡞ۀঢ়گΛ֓؍ ͠ԋशਐߦͷงғؾΛײ͡ͱΔ͜ͱ͕Ͱ͖Δɼ(2) ֶੜͷ࣭՝ϨϏϡʹࡍ͠ը໘ڞ༗ͱإͷݟ͑ΔϏ σΦνϟοτʹΑΔਝͳରԠ͕Ͱ͖Δɼ(3) ֶੜಉ͕࢜՝ΛҰॹʹղ͍ͨΓɼڭ͑߹ͬͨΓɼάϧʔϓ ϫʔΫΛߦ͏͜ͱ͕Ͱ͖ΔɼͰ͋ΔɽจՊܥֶ෦ੜ 230 ໊Λରͱͨ͠ɼڭһ 4 ໊ɼTA 14 ໊ʹΑΔϓ ϩάϥϛϯάಋೖतۀͰຊγεςϜΛؒΛӡ༻ͨ͠ɽޫճઢΛ༻͍ͯ͠Δֶੜ 70%ΛؚΉͯ͢ ͷडߨੜ͕ PC Λར༻ͨ͠ϦϞʔτڥͰडߨͨ͠ɽγεςϜͷར༻ϩάɼར༻ऀͷΞϯέʔτੳɼ ର໘Ͱߦͬͨ 2019 ͱͷҙࣝௐࠪͷ࣍ൺֱʹΑΓຊγεςϜͷධՁΛߦͬͨɽͦͷ݁Ռɼओཁͳσʔ λͱͯ͠ɼ(a) 1 िʹ͖ͭ 1 ໊͋ͨΓฏۉ 1.4 ճͷ࣭ରԠΛߦ͏͜ͱ͕Ͱ͖ͨɼ(b) 8 ׂͷֶੜ͕࣭ ͕͘͢͠ຬͷ͍͘ڥͰԋश͕Ͱ͖ͨɼ(c) ର໘तۀͱଝ৭ͷͳ͍ҙࣝௐࠪͷ݁ՌͰ͋ͬͨɼͱ͍͏݁ Ռ͕ಘΒΕͨɽຊγεςϜʹΑΓɼϑϧɾΦϯϥΠϯͷϓϩάϥϛϯάಋೖڭҭʹ͓͍ͯɼର໘तۀͱ ಉͷ࣭ͷԋशࢧԉαʔϏεΛఏڙͰ͖ɼີͳίϛϡχέʔγϣϯΛͱͳ͏ϓϩάϥϛϯάԋशΛల ։Ͱ͖Δ͜ͱ͕ࣔ͞Εͨɽ Ωʔϫʔυɿϓϩάϥϛϯάڭҭɼԕִڭҭɼ࣮शࢧԉɼWebRTCɼTAʢTeaching Assistantʣ CreCoSpeek: The Communication Supporting System for Virtual Introductory Programming Classroom Yoshiaki Matsuzawa1,a) Shoki Ochiai1,b) Atsuki Saito1,c) Kazuyoshi Murata1,d) Received: March 29, 2021, Revised: September 9, 2021, Accepted: October 30, 2021 Abstract: In 2020, COVID-19 enforced all educational practitioners to conduct educational practices in a fully online environment. In this study, we developed a WebRTC-based software system named “CreCoSpeek” designed to support communication between TAs (Teaching Assistants) and students, and demonstrated the system in a virtual introductory programming classroom. The system was designed to enable (1) teachers can feel the atmosphere of the virtual classroom by looking over at students’ working display, (2) teaching assistants in the virtual classroom can quickly and efficiently support students’ who need an educational help through video chat, and (3) students can conduct reciprocal teaching with peers and create group working sessions with peers. We demonstrated the system in a university introductory programming class, and ap- オンラインコンピューター実習 CreCoSpeek ⻘⼭学院⼤学 • オンラインで⼤学のコンピューター実習を ⾏うためのアプリ • 先⽣⽅がオンライン授業のシステムをDIYで 開発し、学⽣の声を聞きながら改良を重ねた • SkyWayのメリット: 短期間でサービスを⽴ち 上げられる、無料で試せる点 事例