[Self-Introduction] What I Learned About Lesson Planning and Classroom Management During My 38-Year Career as a Teacher Who Often Failed

Nice to meet you. I am Sanshiro.

Seven months have passed since I started on note. Before I knew it, I had written over 100 articles.

From educational practices, classroom management, and lesson planning to entries for the Creative Awards, I have written quite a lot as things came to mind.
Better late than never, please let me introduce myself again.

I taught social studies at a junior high school for 38 years.

Currently, after retiring, I stand in school classrooms as a part-time lecturer at universities and junior high schools, while sharing my experiences and practices on note.

And in August 2026, with the intention of "starting junior high school all over again," I opened "Sanshiro's Social Studies Classroom" on note.

1. What I write about in this note

There is something I have been thinking about for a long time while working as a teacher.

That is,

"How can I create lessons and classrooms that students find 'fun'?"

That is what it is.

Of course, things did not go well for all 38 years.

In fact, there were perhaps more failures and regrets.

Lessons where I couldn't hear the students' voices.
Classroom management where my enthusiasm ran ahead of everything else.

Practices I still remember today, thinking, "I wish I hadn't done that..."

In this note, I write as honestly as possible about what I learned from those countless "failures."

2. Main series

1. Food x Lesson Series

This is a series that explores social studies and integrated learning lessons through the lens of food.

I introduce practices that expand learning from familiar food cultures, such as mitarashi dango, school lunches, and local specialties.

(2) Movie x Lesson Series

This is a series that considers how to connect questions found within movies to lesson planning.

Rather than just sharing impressions of the films,

I write from the perspective of,

"If I used this movie as teaching material, what kind of questions would arise?"

(3) Classroom Building and Management Series

I introduce ideas for school events, homeroom activities, grade-level recreation, and classroom management techniques.

I have compiled these as concretely as possible so that young teachers can use them right away.

(4) Break Time Series

These are essays where I casually write about events that happened at school and things I have felt as a teacher.

3. Who I would like to read this

Teachers who want to make their lessons more fun

• Teachers who are struggling with classroom management

• Young teachers looking for hints

• Veteran teachers who want to know about other ways of thinking

• Anyone interested in schools and education

And above all,

"I've been feeling a bit tired lately"

I am a teacher who feels this way.

There is no single correct answer in the world of education.

That is precisely why someone else's practices or stories of failure can provide hints for your next step.

4. Start here (Recommended Articles)

I will introduce some articles that best convey my way of thinking and the tone of my writing.

1. For those who want to start with food culture topics
"Food x Lesson" Series

2. For those interested in lessons using movies
"Movies x Lesson" Series

3. For those struggling with classroom management
"Classroom Management (Class Activity Practice Edition)" Series

"Ready-to-Use Class Activities (with data)" Series

4. For those who want to take a little break
"Break Time" Series

5. An article that helps you understand the teacher known as Sanshiro

* Each series is organized into magazines. If you find a theme you like, you can continue reading.

5. Finally

I have been a teacher for 38 years,

but looking back now, I feel it was my failures, rather than my successes, that helped me grow.

That is why in this note, I will not just share polished success stories, but also:

"The mistakes I made"
"The things I struggled with"

I would like to write about that as well.

If there are any articles that interest you, please feel free to take a look during your break.

And I would be happy if you could resonate with any of the articles.

Thank you for your support.