100 Days Of School Activities For 2nd & 3rd Grades

If you’re looking for fun and engaging 100 days of school activities for 2nd & 3rd grades that go beyond simple counting, this blog post is packed with classroom-ready ideas that will encourage writing, critical thinking, math practice, celebration, and more —all in one place.

As a teacher, I bet you will agree that the 100th day of school is a huge milestone for students, especially in 2nd and 3rd grade, where children have grown so much academically, socially, and emotionally since their first day of school.

Celebrating this day gives you, as their teacher, the perfect opportunity to combine fun, reflection, and meaningful learning while reinforcing key skills and concepts.

Why the 100th Day of School Matters in 2nd & 3rd Grade?

By the time students reach the 100th day, they’ve already built strong routines and foundational skills. This makes it the perfect moment to:

• Reflect on their growth and achievements

• Practice higher-level thinking skills

• Reinforce math and literacy concepts

• Build classroom community

• Create meaningful keepsakes that students will remember

For 2nd and 3rd graders, the 100th day isn’t just about counting to 100. It’s about celebrating how much smarter, stronger, and more confident they’ve become.

100 Days Of School Activities For 2nd & 3rd Grades

1. “100 Days Smarter” Writing Activities

Writing activities are a fantastic way to help students reflect on their learning journey.

Here are some writing prompt ideas that you can consider using:

• I am 100 days smarter because…

• In 100 days, I learned how to…

• My favorite thing I learned in the last 100 days was…

These prompts encourage self-reflection, sentence structure, and expressive writing, while also giving you insights into your students’ progress.

For 2nd and 3rd graders, this level of reflection builds confidence and pride in their learning.

💡Teacher tip: You can display your students’ completed writing pages on a bulletin board titled “100 Days Smarter!”

SHOP 2nd & 3rd Grade 100 Days of School Activities on TPT

2. 100 Days Smarter Certificates (A Must-Have!)

Nothing makes students feel prouder quite like a certificate.

A 100 Days Smarter certificate is a simple but powerful way to:

• Celebrate your students’ effort and perseverance

• Boost their self-esteem

• Create a keepsake for families

Certificates are especially meaningful at this level because students understand the accomplishment behind them.

3. Math Activities That Go Beyond Counting

Second and third graders are ready for more than basic counting, so try math activities that stretch their thinking.

Fun Math Ideas for the 100th Day:

• Number Lines to 100 – Fill in missing numbers or identify patterns

• Odd One Out Activities – Strengthen logic and reasoning

• Graphing Activities – Graph items in groups of 10 or tally favorite 100th-day activities

• Counting & Coloring – Color groups of objects up to 100

• Patterns to 100 – Identify skip counting patterns by 2s, 5s, and 10s

These activities reinforce place value, number sense, and problem-solving skills in a fun and low-stress way.

Don’t have time to put these math resources together, then make sure to grab my no-prep 100 days of school fun packet for 2nd and 3rd graders on TPT!

4. Word Searches, Scrambles & Vocabulary Fun

Literacy activities are a great way to balance out the excitement of the day while keeping learning intentional.

Literacy Ideas for the 100th Day:

• 100 Days Word Search – Builds spelling recognition and focus

• Word Scramble – Encourages critical thinking and vocabulary recall

• I Spy Activities – Strengthen visual discrimination and attention to detail

These types of activities work well as:

• Morning work

• Literacy centers

• Early finisher activities

They’re engaging without being overwhelming and perfect for a celebration day.

5. Creative Coloring & Art Activities

Art and creativity deserve a place in your 100th-day celebration, especially for 2nd and 3rd-graders who love expressing themselves visually.

Creative Ideas:

• Coloring pages themed around 100 Days Smarter

• Design a “100th Day” cover page for a class booklet

• Decorate numbers or shapes using 100 items

Coloring and art activities will help your students:

• Relax and refocus

• Strengthen fine motor skills

• Feel included in the celebration regardless of academic level

6. Classroom Keepsakes & Memory-Making

The 100th day is the perfect time to create something students can take home and cherish.

Keepsake Ideas:

• A 100 Days of School booklet with writing, math, and coloring pages

• A decorated cover page marking the milestone

• Certificates paired with student reflections

These keepsakes are especially appreciated by families and make the learning experience feel meaningful beyond the classroom.

Easy, Low-Prep 100th Day Of School Activities 

Let’s be honest, as a classroom teacher, you are busy, and the 100th day of school shouldn’t feel stressful.

That’s why print-and-go activities are ideal. Having ready-made worksheets, certificates, and activities allows you to:

• Focus on student engagement

• Keep the day structured

• Reduce prep time

A well-rounded 100th-day activity pack cover:

• Writing

• Math

• Literacy

• Art

• Reflection

All while keeping students excited and learning.

The best 100 days of school activities for 2nd and 3rd grade should:

• Be developmentally appropriate

• Encourage independence

• Promote higher-order thinking

• Still feel fun and celebratory

Whether you’re teaching in a traditional classroom, homeschooling, or supporting small groups, these activities work beautifully across different learning environments.

SHOP 2nd & 3rd Grade 100th Day of School Activities

Make the 100th Day Meaningful

The 100th day of school is more than a number; it’s a celebration of growth, effort, and learning. With the right activities, you can create a day that your students remember long after the school year ends.

By combining writing, math, literacy, creativity, and celebration, you will help your students recognize just how far they’ve come in 100 days, and how proud they should be of themselves. Because by day 100, they really are 100 days smarter.

More Fun Resources For Your Classroom

Here are some more fun resources I believe you will like for your classroom and students:

• Friendship lessons for elementary classrooms
• All about me activities that build confidence in the classroom
• Character education for elementary classrooms

Pin these 100 Days Of School Activities 

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