[NIJIN Co., Ltd.] Seminar Hosted by "Jugyo Terrace", a Teacher Training Platform with 96% Effectiveness! Taught by Masahiko Ozaki, StudySupple Instructor: Elementary School Math Lessons and Evaluation

Jugyo Terrace, a teacher training platform with a 96% effectiveness rate operated by educational startup NIJIN Co., Ltd. (headquarters: Koto-ku, Tokyo; Representative Director: Tatsuro Hoshino), will hold an online seminar for elementary school teachers struggling with lessons and grading. The seminar focuses on "child-centered lesson design" and "highly convincing evaluation methods" in mathematics.

This seminar features Masahiko Ozaki (Vice Principal of Kokugaku Gakuen Elementary School), a leading figure in math education who serves as a Recruit StudySupple instructor and textbook editorial board member, earning overwhelming support from teachers. Since the introduction of the new Courses of Study, many teachers have been troubled by the evaluation criteria for "proactive attitude toward learning" and specific measures to design lessons that draw out children's initiative. Ozaki will impart his expertise.

Event details and registration URL: https://sannsuuhyouka.peatix.com/

■ Social Background and Purpose of the Event: Addressing Teachers' Assessment Concerns

In recent years, elementary schools have faced a major challenge with the introduction of the new Courses of Study: how to observe and reflect a "proactive attitude toward learning"—rather than the previous knowledge-oriented approach—in grades and evaluations. Particularly in mathematics, many teachers struggle with questions like "How can we make children develop their own questions and learn deeply through dialogue?" and "How should we evaluate that behavior?"

To help teachers update their teaching and evaluation skills while embodying the "individually optimized learning" and "collaborative learning" promoted by the Ministry of Education, Jugyo Terrace—used by over 1,000 teachers and boasting a 96% effectiveness rate—has planned a seminar that offers concrete methods directly applicable to everyday practice.

■ Highlights of the Seminar

Direct guidance from a math professional who serves as a StudySupple instructor and textbook editor: Masahiko Ozaki, a Recruit StudySupple instructor (elementary math basic course) and editorial board member for the textbook "Minna to Manabu Shogaku Sansu" published by Gakkotosho, who has won awards such as the "Mathematics Teaching Master Award" Excellence Prize, will generously share his extensive knowledge and know-how.

Transition from "one-way teaching" to "children's dialogue-based lessons" with real examples: He will explain specific lesson designs that shift from teacher-led instruction to children proactively discussing and shining with initiative.

Clear criteria for the most troubling "evaluation": He will present how to observe evaluation criteria for mathematics that are convincing for children, parents, and the teachers themselves.

Speaker Profile: Masahiko Ozaki / Vice Principal of Kokugaku Gakuen Elementary School

After over 20 years of teaching experience at the Kansai University Elementary School, he assumed his current position. While serving as vice principal, he continues to teach, making him a leading figure in math education.

Main achievements: Recruit "StudySupple" instructor (elementary math basic course); Editorial board member for Gakkotosho's "Minna to Manabu Shogaku Sansu"; Standing director of the National Mathematics Lesson Study Association.

Awards: Tokyo University of Science "Mathematics Teaching Master Award" Excellence Prize, Shogakukan "My Educational Record" Special Selection, etc.

Books: "Elementary School New Courses of Study: Math Lesson Design" and "50 Techniques to Improve Math Lessons" (both by Meiji Tosho), among many others.

Event Overview

Event Name: [For Elementary School Teachers] The Role of "Evaluation" in Lessons: Math Lesson Design Taught by StudySupple Instructor Masahiko Ozaki

Date & Time: June 27, 2026 (Saturday) 19:00-20:00

Format: Online (ZOOM)

Target: Elementary school teachers, educators, and anyone interested in education (especially teachers struggling with math lesson design and evaluation)

Participation Fee: 2,000 yen / Free for Jugyo Terrace members

Organizer: Jugyo Terrace (NIJIN Co., Ltd.)

Details & Registration: Please apply via the Peatix page (https://sannsuuhyouka.peatix.com/).

■ What is Jugyo Terrace?

Operated by NIJIN Co., Ltd., Jugyo Terrace aims to make classrooms across Japan HAPPY! It is a teacher training platform used by over 1,000 teachers with a 96% effectiveness rate. It is an online salon with a real-name system and high psychological safety, providing a place for sure growth through three methods: "seeing" top-notch lessons from professional instructors nationwide, "showing" one's own teaching videos for feedback, and "discussing" with highly motivated teachers. It has held over 300 seminars and study sessions, generating many happy teachers, children, and classrooms through abundant content.

■ NIJIN Co., Ltd.

With the philosophy of "Illuminating the country from education," NIJIN is a "Japan Education Company" that solves educational issues systematically. Feeling a national crisis over too many children unable to express themselves in schools today, former elementary school teacher Tatsuro Hoshino founded the company in April 2022 to create a country where everyone can have "hope" in education. It operates 13 mechanisms (businesses) to solve various educational problems, including school non-attendance, teacher shortages, teachers' work styles, and school systems.

Company Name: NIJIN Co., Ltd.

Location: 2-5-5 Tokiwa, Koto-ku, Tokyo

Established: April 1, 2022

Representative: Tatsuro Hoshino

Business: Educational businesses that solve educational issues systematically (teacher training, non-attendance support, startup support, educational events, after-school programs)

URL: https://nijin.co.jp/