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Kindergarten students holding up cards with 100 days of school written on them, smiling
Principals

Celebrating the 100th Day of School in Your Principal Newsletter

By Adi Ackerman·October 10, 2025·6 min read

School hallway decorated with 100th day of school displays and student artwork

The 100th day of school is genuinely worth celebrating. One hundred days of attendance, learning, and community is a real accomplishment -- and a perfect moment to pause and take stock. Your newsletter is the right tool to bring families into that moment, even the ones who are not in the building when the celebration happens.

Announce the Date and What Students Will Do

Families want to know what the 100th day involves. Name the specific activities. "On Thursday, February 6, our kindergarten through second-grade students will participate in our 100th Day of School activities. Students will count, sort, and build with collections of 100 objects, read 100-themed books, and share their 100 Days Smarter posters." That is a real preview of a real day -- not just "it is a special day."

Give Families Something to Do at Home

The most engaged 100th day families are the ones who participated the night before. Ask for something specific. "If you would like to contribute to the classroom activity, have your child bring 100 small objects in a zip-lock bag -- pennies, buttons, pasta pieces, or anything that fits. Please send it by Thursday morning." That one ask creates a home-school bridge and gives families a concrete moment of involvement that their child will talk about at school.

Reflect on What 100 Days Means

The principal's voice in a 100th day newsletter should offer something a teacher-level communication does not -- perspective on what the milestone means for the whole school. "Somewhere in the middle of October, schools stop feeling new. Students and teachers have found their rhythm, and real learning is the daily norm rather than the exception. That shift happened here around day 35, and we have been building on it ever since. Day 100 is a good moment to name that."

A Template 100th Day Newsletter

Here is a full newsletter that works:

"Day 100 is February 6. That is 100 days of learning, 100 days of showing up, 100 days of building something together. Our K-2 classes will celebrate with activities built around the number 100 -- counting, measuring, creating, and comparing. Grades 3-5 will use the milestone as a math checkpoint: students will analyze their own learning data from the first 100 days and set goals for the final 80. At home, try this tonight: ask your child what is the most important thing they learned in the first 100 days. Then listen carefully."

Share School-Level Milestones From the First 100 Days

The 100th day newsletter is the right moment for a brief school progress check-in. Not a full report card -- just one or two meaningful numbers. "In the first 100 days, we logged 14,820 minutes of independent reading across K-3. Attendance through day 100 is 93.7 percent -- three points above last year. Referrals to the office are down 28 percent from this time in 2025." Each of those statistics tells a positive story about a school that is working. Share them.

Send the Recap After the Celebration

A brief post-celebration newsletter with a photo from the day makes the 100th day feel like the community moment it is. "Day 100 happened Thursday, and 640 students made it count. Our library wall is covered with 100-object collections, our second-grade hallway has 64 'I am 100 Days Smarter' posters, and two first graders informed me that 100 is a really big number." That follow-up newsletter goes out on Friday and makes every family who missed the day feel like they heard the story anyway.

Connect the Milestone to What Is Coming

The 100th day is roughly the two-thirds mark of the school year for most schools. Use it as a forward-looking moment. "We have about 80 school days left. That is plenty of time to finish what we started, push into new territory, and end the year differently than we started it. We are not slowing down." That kind of language energizes both students and families for the final stretch of the year.

Make It Personal From You

The 100th day newsletter, more than most, is a moment for a genuine principal voice. One sentence that sounds like you specifically and not like a form letter. "My favorite part of Day 100 every year is the kindergarteners counting by tens. They always start slowly and then race to a hundred like they found the exit on a maze." That kind of specificity makes the newsletter a piece of writing, not just a communication.

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Frequently asked questions

What should the principal newsletter say about the 100th day of school?

Announce the date, describe the activities students will participate in, tell families what (if anything) to send with their child, and add a brief reflection on what 100 days of learning means for your students. This is a joyful newsletter -- let it sound like one.

What can families do at home to participate in the 100th day celebration?

Ask families to help their child count out 100 small objects to bring to school, practice writing the numbers 1 to 100, or find 100 items at home that weigh exactly one pound. These home activities connect families to the school milestone and give children something personal to bring to the celebration.

How do I make the 100th day newsletter feel different from a routine school update?

Let the celebration come through in the tone and language. Short sentences. A moment of genuine reflection. 'We are 100 days into something that matters' lands differently than 'we are pleased to announce the upcoming milestone.' The 100th day is a real achievement for students. Write like it.

What academic progress should be shared around the 100th day?

The 100th day is a natural checkpoint. Share one or two metrics: reading levels, math fact fluency, attendance rates for the first 100 days. 'Of the 100 days so far, our school attendance rate has been 94.2 percent -- the highest in three years.' A data point embedded in a celebration feels motivating, not clinical.

Can Daystage help make the 100th day newsletter look festive and engaging?

Yes. Daystage lets you add photos, colorful section headers, and image blocks to your newsletter. A hero photo of students working on 100th day activities, sent the day after the celebration, makes a memorable recap newsletter.

Adi Ackerman

Adi Ackerman

Author

Adi Ackerman is a former classroom teacher and curriculum writer with 8 years in K-8 schools. She writes about school communication, parent engagement, and what actually works in real classrooms.

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