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100th Day of School Activities

What is the 100th Day of School?

The 100th day of school is literally the 100th day of the school year.  From the very first day of school, many classes keep track of the number of days they've been in school in anticipation of the 100th day. Days are often kept track of by counting straws or craftsticks, ten of which become a "ten bundle," providing ongoing opportunities for counting by tens and ones and developing place value concepts.

When is the 100th Day of School?

The 100th day of school varies from school to school, depending on when school started and whether or not there are days off for teacher workshops or inclement weather. Many schools end up celebrating the 100th day of school sometime in February.

100th Day of School
100th Day Fun!

More than just a milestone worth noting - the 100th day is the perfect time to have fun with the number 100 while exploring counting, sorting, patterning, and various other math skills and concepts. Try some of the activities below or scroll down to the bottom of the page to read contributions from other visitors to this page. 

100 Object Sort

Penny Dump

How Many Different Ways Can You Count to 100?

Making Designs of 100

Patterns on a 100 Grid

I Wish I Had....

Name Patterns on the 100 Grid

Race for a Dollar

Which is Longer?

Which Weighs More?

Domino Train

Coin Dump

How Many Words?

Several of the above activities require that you prepare zip-lock bags containing 100 small items ahead of time. Send home this letter a week or two before your 100th day activities and have students prepare these bags for everyone to use.

Favorite 100th Day Read-Alouds


More 100th Day Fun

Have A Great Idea for the 100th Day?

Do you have a great 100th day activity? Share it!

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What Other Visitors Have Said

Click below to see contributions from other visitors to this page...

Estimation/ Measurement 
I give each student a replica of a footprint. They record their name on the foot. Starting at a taped line on the hallway floor, they estimate how far …

Kindergarten Teacher 
I like to use a sentence strip for a crown and have students decorate and write Happy 100th day! Or I'm 100 days smarter.

100 Pennies 
Each student is encouraged to collect 100 pennies throughout their house, car, etc. On the 100th day, they put each penny on a hundreds chart to actually …

100 Tally Marks Game 
This is not an original creation, but it is one that our students love to play! We have a laminated game board with 20 groups of five dots each. These …

Estimation Jar 
Love all the ideas on this page! Two partner activities that I've used in 3rd grade are: 1. How tall is a stack of 100 pennies? 100 nickels? The coin …

Race to 100 and Number Grid Puzzles 
Two of the center activities I've used the last few years on the 100th day of school are Race to 100 and 100 Grid Number Puzzles. Race to 100 Materials: …

Roll to 100 
Roll to 100 is always a popular activity in my class. All you need are a 100 grid for each player, 2 dice, and crayons of different colors. Directions …

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