Renraku-cho: The Japanese School Contact Notebook Between Home and Teacher

A simple notebook travels between backpack and kitchen table every day, linking Japanese teachers and families in a few quiet lines.

Published October 21, 2026 at 9:30 PM JST | By Tokyo Paul

Quick answer: Renrakucho is the contact notebook used in many Japanese elementary schools. Children copy down the next day's homework and items to bring, and parents and teachers use the same book to pass short messages, such as the reason for an absence. Families are usually asked to look through it with their child each afternoon.

New families in Japan often hear about the renrakucho in the first week of school and wonder what exactly goes into it. The idea is old-fashioned and practical: one small notebook that travels in the backpack and keeps everyone on the same page. This guide explains what the notebook is for, what children and parents write, how absences and notes are handled, how schools are beginning to move the routine onto tablets, and how newcomers can make it easy.

What the Renrakucho Is

Renrakucho (written with the characters for contact and notebook) is a notebook for communication between school and home. A guide for families prepared by a city in the Tokyo area describes it as a book in which pupils write down important announcements from the teacher, and which parents and teachers use to communicate with one another.

It is a daily tool, not an annual report. The page layout is usually plain, with space for the date and the day's notes. There is no single fixed model for these notebooks, and many versions have columns for the date, the content, and a parent's signature or seal.

Because formats vary, your own school will tell you which notebook to buy or which one it hands out. Many schools provide specific instructions in the first week.

What Children Write in It

The most common use is to record what comes next. A description of the school day published by The Japan Forum says that students note their homework and the things they need to bring the next day, so they do not forget. At the end of the day there is a short meeting where the teacher announces homework and explains the next day's schedule while students pack their backpacks.

A guide from the city of Kure describes the same habit: children write down the next day's study and homework in the contact book. That means the notebook doubles as a preview of tomorrow, and it gives the child practice at organizing a day.

In a classroom example published by Japan's education ministry, the teacher wrote the next day's timetable, homework, and items to bring on the blackboard, and students copied them into their renrakucho. The routine builds a small daily habit of planning ahead, which is one reason schools value it.

What Parents Write and Check

Parents are asked to take part in two ways. The first is a daily glance. The Nishi-Tokyo city guide advises reviewing the notebook with your child after school and confirming that everything is ready for the next day. The Kure guide likewise says guardians should look at it after the child comes home.

The second is writing messages. If your child will miss school or arrive late, the notebook is the usual place to put the reason. The Nishi-Tokyo guide says to write the reason in the notebook and have a sibling or friend take it to school. It also says to note any illness or injury that keeps your child from physical education, and to write anything the teacher should know before handing the notebook in.

If you forget, the guide says to call the school. A short, polite line is enough. The goal is clarity, not elegant writing.

Everyday Messages That Fit Well

Typical notes are short and factual. Common examples include an absence because of a cold, a late arrival because of a medical appointment, an early pickup, a request for the child to skip swimming, or a reminder that a form has been sent. Simple vocabulary is useful: kesseki means absence, chikoku means arriving late, and early leaving is called sotai.

Some families also use the notebook to share good news or ask a small question, such as how a child is settling in. Teachers can often reply in a few lines. The tone on both sides is usually courteous and brief.

Longer or more sensitive topics are generally better handled in person, by phone, or at a parent-teacher meeting, which many schools hold. The notebook keeps daily matters light and leaves bigger conversations to proper conversations.

How It Fits With Other School Communication

The renrakucho is only one channel. The Nishi-Tokyo guide lists several others: school letters that should be read carefully and kept, grade newsletters that describe lessons and items to prepare, an email-style alert service for safety information such as typhoons or heavy snow, and a phone-chain contact network for important messages.

It also gives welcome advice for non-Japanese readers: if you do not read Japanese, tell the homeroom teacher. A friendly request early in the year can prevent later confusion.

The same guide advises writing the child's full name on every item used at school, and that includes the contact notebook. A labeled notebook is easy to return if it is lost.

A Notebook in Transition

Some schools are rethinking the routine because of tablets. An education ministry case study titled Let's Write the Renrakucho describes a school where the teacher no longer writes next-day notices on the blackboard for students to copy. After each student received a device, the teacher began posting the notices on a cloud bulletin board.

The case study explains the benefits. Teachers can update information at any time, students can check it when they want, and the teacher can leave messages for individual students. The case study adds that if students take their devices home, the paper notebook may become unnecessary, since homework and preparation can be checked directly online.

So the format is evolving, although the idea remains: a reliable, daily link between classroom and home. Your school may use paper, a digital system, or a mix, so confirm what applies in your child's class.

Other Uses of the Name

The word also appears in other settings. Many nurseries and kindergartens also use a contact notebook, and parents can usually write short notes in it, such as a planned absence.

At some schools and grade levels the same name can point to a slightly different booklet, for example one that is mainly used to record attendance or to pass on a report on how the child is doing. The name is the same, but the use can differ by school level and area.

This is why it helps to ask your child's teacher what the notebook is used for in that particular class.

Making It Easy for Your Family

A few small habits keep the routine smooth. Set a regular time, such as after snack, to open the notebook with your child. Let the child read the day's entries aloud, which builds responsibility and helps newcomers follow along.

Keep a pen near the backpack so notes can be added quickly. Write dates clearly, and keep messages to a line or two. If a translation app helps you read the teacher's notes, use it, and ask the school how it prefers to receive messages written in your language.

The renrakucho works best as a shared habit. A minute a day gives children a sense that home and school are cooperating, which is the quiet strength of this humble notebook.

Want to go deeper? Tokyo Paul's book Japanese Parenting Secrets That Create Calm, Independent Children is available on Amazon.

Frequently Asked Questions

What is a renrakucho in Japan?

A renrakucho is a contact notebook used between school and home, especially in elementary school. Children record homework and items to bring, while parents and teachers use it for short messages such as absences. Families are typically asked to check it with their child each afternoon.

How should a parent report a child's absence in Japan?

City guides for families say to write the reason for the absence or lateness in the contact notebook and have a sibling or friend bring it to school. If you forget, call the school. Practices vary, so confirm the method with your child's school.

Is the renrakucho being replaced by tablets?

In some places it is changing. A case study from Japan's education ministry describes a school that moved next-day notices to a cloud bulletin board after each student received a device. The study notes that if devices go home, the paper notebook can become unnecessary, though schools differ in what they use.

Further Reading

To explore further, see Elementary School Guide for Families, Nishi-Tokyo City, Writing the Renrakucho, Ministry of Education (MEXT) and School Is Over, The Japan Forum.

Keep Exploring

More guides from Tokyo Paul: Renrakucho: The Daily Contact Book Between Home and School, Namae Tsuke: Why Every School Item Needs a Name and Ichinensei: A Child's First Year of Japanese Elementary School.