Skip to Content

30 Easy 100 Days of School Ideas to Celebrate Students' Momentous Milestones

The collages, shirts and slogans are keeping it 💯.

By
two projects celebrating 100 days of schoolpinterest
Where the Smiles Have Been/Tried and True Creative

We've been independently researching and testing products for over 120 years. If you buy through our links, we may earn a commission. Learn more about our review process.

When students make it past the halfway mark at school, it's time for a celebration! That's why so many teachers make a big deal out of the 100th day of school. Some classes celebrate with 100-themed parties, craft projects that involve the number 100, collections of 100 objects, dress-up days where kids are asked to wear a costume that makes them look 100 years old or drawing and writing assignments that prompt them to imagine what the world will be like when they're 100.

While these celebrations may seem like a recent trend — or growing in popularity in recent years — they actually date back to 1979, says Allison Wilson, Senior Director of Curriculum and Innovation at Stratford Schools. "This momentous occasion supports young learners in their understanding of the number 100 through the science of counting," she says." Children also have the opportunity to reflect on their learning for the first half of the school year."

And what about all those posters, t-shirts, arrays and other projects that involve 100 items? They help kids understand the concept of 100. "Numbers may sometimes feel abstract," Wilson says. "Research tells us that young learners benefit from working with tangible objects, especially when children are first acquiring the skill of counting. Counting objects also supports grouping objects — by fives, by tens, etc. — to see patterns and relationships between numbers and objects. Designing a poster or shirt may also provide a sense of creativity, ownership and some fun, too!"

But what to choose? Here are some of the best 100 Days of School ideas for creative projects. Some incorporate their favorite characters. Others have clever ways of making the big count easy but breaking things down into 10 groups of 10. Others show off a kid's personality. May they all inspire your young scholar for the next 100 days.

Looking for more great educational activities? Check out these Good Housekeeping guides:

The Best At-Home Science Experiments | The Best Learning Activities for Preschoolers and Kindergarteners | The Best Learning Activities for Toddlers

100 Days Beaded Necklace

a necklace made from 100 beads as part of a 100th day of school celebration
One Sharp Bunch

They'll have fun choosing their color scheme and making a necklace out of 100 beads. Bonus: Threading the beads onto a cord or lanyard also helps work on their fine motor coordination. A pendant or charm that says 100 is the perfect finishing touch.

See more at One Sharp Bunch »

100 Days Monster Shirt

a shirt featuring a monster with 100 googly eyes celebrates the 100th day of school
Salt Family Travels

In Greek myth, the Argus was a giant, fearsome creature with 100 eyes all over his body — but this monster is a lot cuter. Let them go wild with a bag of 100 googly eyes.

See more at Salt Family Travels »

100 Days Flower Shirt

a shirt that says "100 days of blooming" with 100 fake flowers on it
Design Improvised

My, how they've blossomed! They can put the "garden" in kindergarten with a "100 Days of Blooming" shirt, complete with 100 artificial flowers of their choice.

See more at Design Improvised »

Advertisement - Continue Reading Below

100 Days Butterfly Wreath

a wreath of sticks and twigs with 100 fake butterflies to celebrate 100 days of school
Hopscotch Mom

For something a little different, you can pass over the shirts and posters and go for a 3D wreath instead. This one has 100 butterfly stakes to symbolize how the year "fluttered by," but the same family also made a wreath of friendship bracelet knots.

See more at Hopscotch Mom »

100 Days LEGO Shirts

two boys standing next to each other wearing shirts that say "100 days smarter" out of felt lego blocks
The Scrap Shoppe Blog

LEGO blocks, because of the way they line up so neatly into arrays and rows, are perfect materials for 100 Days projects. But instead of trying to attach LEGO bricks to a shirt, this blogger made 100 bricks out of heat transfer vinyl and then ironed them onto her son's shirts. You can download her pattern at The Scrap Shoppe Blog.

See more at The Scrap Shoppe Blog »

100 Days Gumball Shirt

a shirt that has a felt gumball machine and 100 painted gumballs inside
DIY Inspired

Gumball machines are a classic 100 Days motif. This shirt was made with felt and paint, but you can also make gumballs out of pom poms, Do-a-Dot paint markers or big sequins.

See more at DIY Inspired »

Advertisement - Continue Reading Below

100 Days Insect Shirt

a boy wears a shirt with 100 fake insects on it and the slogan bugging mrs p for 100 days to celebrate the 100th day of school
Where the Smiles Have Been

This design is not for the squeamish! For the future entomologists (or general pests) out there, this design features 100 plastic bugs.

See more at Where the Smiles Have Been »

100 Days of Faces Collage

a collage of 100 days of silly faces to celebrate the 100th day of school
The Crafty Pickle

This one requires some advanced planning: If you have an instant camera or a photo printer, be sure to snap a pic every day for those first 100 days. Then you can make a collage of all the different looks they've sported over the year so far. If they're into fashion, you can make sure you get their outfits in the frame and make grid of #ootd images.

See more at The Crafty Pickle »

100 Days Drawing Project

a drawing of a person at 100 years old
A Spoonful of Learning

Some schools use the 100th day to have kids imagine what life will be like when they're 100 years old. Some kids are asked to come dressed as old men or old women, but this project — where kids draw what they look like today, and also what they'll look like when they're centenarians — is a lot easier to pull off.

See more at A Spoonful of Learning »

Advertisement - Continue Reading Below

100 Days Button Shirt

a shirt that says "pushing my teacher's buttons for 100 days" with 100 buttons on it
Just Add Confetti

Buttons are great for art projects like this because they come in so many colors, shapes and sizes, so they're perfect for grouping and sorting, if that's required. If they like the "Pushing My Teacher's Buttons" slogan, you can download a template at Just Add Confetti and print it on iron-on transfer paper.

See more at Just Add Confetti »

100 Days Tally Mark Shirt

a shirt that says "my teacher survived 100 days of me" with 100 tally marks to celebrate the 100th day of school
Funny 100 Days of School

This shirt flips things around a little, taking note of how the teacher has survived 100 days! If you want to try to DIY the tally-mark look, either on a poster or a shirt, you can try colored craft sticks.

BUY SHIRT ON AMAZON

100 Days Balloon Poster

a poster with a photo of a boy holding 100 balloons in honor of the 100th day of school
Tried & True Creative

A bunch of 100 balloons is certainly eye-catching, but what really makes this poster shine is the expressions on the kids' faces in their balloon-holding photos. They really look like they're going to take off! You can find the free, printable template for the balloon design at Tried & True Creative.

See more at Tried & True Creative »

Advertisement - Continue Reading Below

100 Days Star Wars Shirt

a shirt with 100 lightsabers and a picture that says "100 days smarter he is" to celebrate the 100th day of school
Mom Can Do Anything

The Force is strong with this design. While this shirt's image and the "100 Days Smarter, He Is" slogan was designed in Photoshop, the 100 lightsabers were hand-drawn using paint pens.

See more at Mom Can Do Anything »

100 Days Ice Cream Cone Craft

a child holds up a giant ice cream cone craft, with three scoops and colored pom poms as sprinkles
Makes and Takes

This craft wasn't conceived as a 100 Days idea, but with a couple of quick modifications it can easily be turned into one. Make five "scoops" of ice cream, put 20 toppings on per scoop — don't forget to count the cherry on top! — and there's your hundred. You can even vary up the toppings, with pom poms on one scoop, sequins on another, gems on a third, and so on.

See more at Makes and Takes »

100 Days Smarter Smarties

girl holds a box of smarties with a sign that says "100 days smarter"
Love the Day

What candy better signifies that they're "100 Days Smarter" than Smarties? This blogger used the Smarties as a fun, celebratory pass-out, but you can also easily attach them to a poster. Conveniently, there are 10 candies to a roll, so you need 10 rolls to make 100. You can find the free, printable template for the "100 Days Smarter" tag at Love the Day.

See more at Love the Day »

Advertisement - Continue Reading Below

100 Days Crayon Wreath

a diy crayon wreath
A Pumpkin and a Princess

It'll take some planning to ensure that this wreath is really made of 100 crayons, but once it's done it has a big "wow" factor. The chalkboard in the middle is the perfect place to write a 100 Days message, too.

See more at A Pumpkin and a Princess »

100 Days Cereal Necklace

a child wears a necklace made of fruit loops, with the color changing every 10 pieces, to celebrate 100 days of school
Kid Friendly Things to Do

As an alternative to beads, kids can string any round cereal piece onto a necklace. Something like Fruit Loops, which comes in several colors, is a good choice because they can switch hues every 10 pieces, making it easier to visualize how 100 breaks down into 10 groups of 10.

See more at Kid Friendly Things to Do »

100 Days Photo Frame

six photo frames with school themed stickers to commemorate the 100th day of school
Geyee

They can preserve the memory of the 100th day of school with a photo frame — and maybe a 100-themed photo booth with a backdrop, too? This set comes with 24 frames that students can decorate with school-themed stickers. The stickers aren't small enough to fit 100 on the frame, but that could be a good inspiration for a DIY project.

BUY FRAMES FROM AMAZON

Advertisement - Continue Reading Below

100 Days Minecraft Shirt

a 100 days of school shirt featuring a minecraft creeper
Seeing Dandy

This student is celebrating "100 Days of Creepin'" with a Minecraft-inspired shirt. They used big, green pom poms to make the Creeper, but using different colors of green felt squares can also give that pixelated look. If you head to Seeing Dandy, you can get an SVG file for the shirt.

See more at Seeing Dandy »

100 Days Bookmark

a 100 days of school bookmark sits on a desk with a notebook and school supplies
Artsy Farsty Mama

This project has the potential to last them through to the last day of school and beyond! The bookmark will certainly be helpful as they do their reading assignments. Head to Artsy Fartsy Mama for the free printable template.

See more at Artsy Fartsy Mama »

Watch Next
 
preview for Good Housekeeping US Section: Life
Advertisement - Continue Reading Below

Back-to-School Season 2023

the personalized teacher stamp and succlent pots are two good housekeeping picks for best teacher gifts

Ace the Class With These Teacher Gifts

dorm room essentials

40 Dorm Room Essentials for College Students

back to school activities, first day of school activities, group of students painting with water colors on art class at elementary school

40 Fun Back-to-School Activities for Kids

pilot frixion
From Good Housekeeping for Pilot Pens

Pilot FriXion Pens Are Every Parent’s Bestie

Advertisement - Continue Reading Below
Advertisement - Continue Reading Below