"Development and Accumulation of Open Educational Resources in SecondaryEducation"    With COVID-19 worldwide in 2020, online education has become animportant educational issue. Here, we will focus on Open education. Open Educationis "resources, tools and practices that employ open sharing frameworks toimprove access to and effectiveness of education around the world." In theUnited States, as the Internet advances, Open Education and Open EducationalResources are widespread. Waseda University is developing various activitiessuch as the "Waseda Course Channel".    On the other hand, in Secondary Education (junior and senior highschool), although the ICT environment of schools has improved, the educationaluse of ICT has not progressed sufficiently.   However, with COVID-19, the development and accumulation of Open EducationalResources for Secondary Education has become an important issue.   In this study, following the 2018 study, we will study the developmentand accumulation of open educational resources in secondary education and thedesign of effective lessons with reference to MERLOT, a learning community runby California State University.Specifically, it is as follows.(1) Digitization of teaching materials:Electronic texts and Video contents of teaching materials (mainly mathematicsand informatics.(2) Designing effective lessons usingcontent: Building effective Blended Learning

“Building a Learning Community as an Open Education in SecondaryEducation”  Openeducation is “resources, tools and practices that adopt an open sharingframework to improve access to education and its effects all over the world”,and as the Internet advances, Open education and Open educational resources hasbeen widely spread around higher education in the United States. WasedaUniversity is developing various activities such as “Waseda Course Channel”.   Onthe other hand, in secondary education (junior and senior high school),although the environment of ICT in schools has been improved, the currentsituation is that the use of ICT for education has not progressed sufficiently.  Inthis research, my developed learning materials were linked with MERLOT that isa learning community managed by California State University, and to study"the possibility of open education" and "the way of knowledge incyber space" in secondary education.Specifically,it is as follows.(1)Digitalize contents of teaching materials: Electronic texts and video contentsof teaching materials (centered on mathematics and information studies)(2)Promotion and diffusion of content: Conducting a teaching material creationworkshop in cooperation with affiliated academic societies.

In thisresearch, we cooperated with MERLOT (CSU) and studied the possibilities andchallenges of open educational resources (OER) on Mathematics and programmingin secondary education.

 The Ministry of Education, Culture, Sports, Science and Technology (MEXT) established the "Conference of Digital Textbooks" in April 2015 and began studying digital textbooks and teaching materials.    Meanwhile, the development of a device (iPad etc.) that makes this environment executable has also progressed. In particular, Textbook Publishing Companies involved in Elementary and Secondary education have started to prepare and publish digital textbooks and teaching materials in addition to the publication of conventional textbooks for the implementation of the new Courses of Study.  In this research, first, I digitized the textbook and students' deliverables that I have created and used for mathematics and mathematical programming using Mathematica in the course "Information Science" at my Senior High School.  Then, I examined digital textbooks / teaching materials with High School Mathematics.

　eポートフォリオでは、電子的に蓄積された履歴や成果物を学習者同士で共有・評価していくことで、学習者自身が学びのプロセスを振り返り、新たな課題を設定するプロセスを創り出すことができる。そして、このサイクルを繰り返すことで学習者は学びをより深化させることができ、その履歴を電子的に蓄積することができる。　本研究ではeポートフォリオシステムとして本学LMSであるCourseN@viとAsahiネットのmanaba folioの異なるシステムのポートフォリオ機能を使用し、そのインターフェースの違いおよび活用の違いを検証した。