• 60 prompts
  • Checked October 2026

100th Day of School Writing Prompts

If I had 100 of something, when I am 100 years old, 100 days smarter, and lists that reach 100.

100th Day of School Writing Prompts

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  1. A box arrives on the 100th day of school holding 100 of something nobody ordered. Write what is inside and what the class does with it.First line: The label said only: Handle with care. Quantity: 100.
  2. Write the first ten and the last ten of a list of 100 excuses for not finishing a list of 100.First line: One: my pencil broke. Two: my other pencil broke.
  3. If I could take 100 steps in any direction from my classroom door, where would I end up? Write the walk.Angle: count as you go; say what you pass at 10, at 50 and at 100.

Next step Write about a hundred dollarsWrite for a leap year

All 60 prompts

If I had 100 of something 15

  • A box arrives on the 100th day of school holding 100 of something nobody ordered. Write what is inside and what the class does with it. First line: The label said only: Handle with care. Quantity: 100.
  • If I could take 100 steps in any direction from my classroom door, where would I end up? Write the walk. Angle: count as you go; say what you pass at 10, at 50 and at 100.
  • If I had 100 balloons, where would I let them take me? Write the flight for the 100th day of school. First line: At forty balloons my feet left the playground.
  • If I had 100 blocks, what would I build? Write the instructions for a friend to build it too. Angle: say how many go in the bottom row, and what happens to the last one.
  • If I had 100 books and one small shelf, which would stay within reach? Write about the first three. Angle: one to read again, one to lend, one you have not opened yet.
  • If I had 100 cookies to give away on the 100th day of school, who would get them? Write the list and the reasons. Angle: no more than five for any one person, and none for yourself until the end.
  • If I had 100 friends coming to lunch on the 100th day of school, what would be on the menu? Angle: where they sit, who carries the plates, what runs out first.
  • If I had 100 pets on the 100th day of school, here is how the morning would go. Angle: who gets fed first, who escapes, who rides on your head.
  • If I had 100 seconds to say anything to the whole school, what would I say? Angle: write the speech, then cut whatever does not fit.
  • If I had 100 seeds, what would I plant, and where? Write the garden 100 days later. Angle: say what came up, what did not, and what surprised you.
  • If I had 100 stickers and could put them anywhere in the school, where would they go? Angle: one for each door, or all hundred on one very surprised chair.
  • If I had 100 umbrellas and it never rained, what would I do with them? Write five uses. First line: Use one: a roof for the sandbox.
  • Is 100 a lot? Write about 100 of something that is far too many and 100 of something that is not nearly enough. Angle: 100 mosquitoes, 100 grains of rice; choose your own pair.
  • Would you rather have 100 little brothers and sisters or 100 grandparents? Write your choice for the 100th day. Angle: think about dinner, birthdays and who gets the window seat.
  • You wake on the 100th day of school with 100 legs. Write getting dressed. Angle: socks first. Say who helps with the shoes.

When I am 100 years old 15

  • At 100 years old you find the page you wrote on the 100th day of school. Write what you think as you read it. First line: My handwriting never did get better.
  • By the time I am 100 I will have done one thing a hundred times and one thing only once. Write both. Angle: the hundred-times thing is ordinary; the once thing is not.
  • Describe yourself at 100 years old, from the shoes up. Angle: what you wear, how you walk, what is in your pockets.
  • For the 100th day of school, ask the oldest person you know what school was like, and write what surprised you. Angle: three questions: lunch, recess, and what they got in trouble for.
  • Two friends from your class meet again when both are 100 years old. Write what they say first. First line: You still owe me a turn on the swing.
  • When I am 100 I will still do three things the way I do them now. Write which three. First line: I will still eat the frosting first.
  • When I am 100 years old I will have a favorite chair. Write what I can see from it. Angle: a window, a shelf of things kept, somebody small on the floor.
  • When I am 100 years old I will tell children about my school days. Write what you will say about this year. First line: In my day we carried our books on our backs, if you can believe it.
  • When I am 100 years old, what will I be tired of explaining to young people? Angle: what a pencil was, why we lined up, how long 100 days felt.
  • When I am 100 years old, what will I have collected? Write the shelf. Angle: start with the first thing, kept since the 100th day of school.
  • When I am 100 years old, what will I miss about being the age I am today? Angle: running for no reason, being carried, a certain cereal.
  • Write a day in your life at 100 years old, with one habit you kept from now. Angle: breakfast, a walk, a nap, and the one habit that lasted.
  • Write the advice a 100-year-old you would give to the you of the 100th day of school. Angle: one thing to worry about less, one thing to practice more.
  • Write the birthday card you would like to get on the day you turn 100. Angle: who signs it, and what the joke on the front is.
  • Write your 100th birthday party: who comes, what is on the cake, who helps with the candles. Angle: 100 candles is a lot of fire. Say what the family does instead.

100 days smarter 15

  • 100 days smarter: write a five-question quiz about your class that only someone who was there all 100 days could pass. Angle: where the good scissors are, which chair wobbles, what Tuesday smells like.
  • 100 days smarter: write about a word you did not know 100 days ago and now use without thinking. Angle: where you first heard it, and the first time you got it right.
  • The 100th day of school is a place to stop and look both ways. Write one thing behind you and one thing still ahead. Angle: something finished, something you are still in the middle of.
  • After 100 days of school, what do you know about your teacher that you could not have guessed on the first? Angle: a habit, a favorite saying, what makes them laugh.
  • Day 37 of school was not special. Write what probably happened on it, and why it still counts toward 100. First line: Nobody remembers Day 37, which is exactly my point.
  • How have your shoes, your backpack or your pencil case changed in 100 days of school? Write the before and after. Angle: scuffs, a broken zipper, a pen that leaked in October.
  • I am 100 days smarter. Write the proof: one thing your hands can do, one thing your head knows, one way you treat people. Angle: a sentence each, then a story for the best one.
  • In 100 days of school the classroom walls have filled up. Write what hangs there now that was not there on day one. Angle: pick one thing and tell the day it went up.
  • Pick something you can do faster on the 100th day of school than on the first, and write a race against your old self. Angle: tying shoes, finding a page, packing up at the bell.
  • Someone in your class is kinder, funnier or braver than they were 100 days ago. Write what you have noticed, without using a name. Angle: one small moment that showed it.
  • Which of the first 100 days of school was the best? Write the case for one day against two runners-up. Angle: say what the winner had that the others did not.
  • Write a letter from day 100 of school to day 1, telling it not to worry about one thing. First line: Dear Day One, you will find the bathroom. I promise.
  • Write the 100th day of school as a climb: where base camp was, and what you can see from here. First line: On day one I could not see past the coat hooks.
  • Write the question you would have gotten wrong on the first day of school and can answer on the 100th. Angle: write your first-day answer, then the one you would give today.
  • You have done the same school-morning routine 100 times now. Write it as instructions for a robot taking your place tomorrow. First line: Step one: hang the coat on the third hook, not the second.

A list of 100 15

  • Begin a list of 100 things smaller than your thumb. Write about the one you would keep in your pocket. Angle: a button, a seed, a tooth, a bead from something that broke.
  • List 100 foods and sort them: ones you like, ones you do not, ones you have never tried. Write about one from the third pile. Angle: guess how it tastes, then say how you would find out.
  • List 100 good names for a pet, a band or a spaceship. Write the story of the one you circle. Angle: say who has the name and how they got it.
  • List 100 jobs people do. Star three you would try for a day and write about one. Angle: say what you would wear and what would be hardest before lunch.
  • List 100 questions you have about the world. Pick the one you most want answered and write your best guess. First line: Question 41: where does the sidewalk end up?
  • List 100 small kind things a person could do at school. Do one, then write what happened. Angle: holding a door counts. So does saving a seat.
  • List 100 things that are older than you. Write about the oldest one you have touched. Angle: a tree, a coin, a bridge, a grandparent's ring.
  • List 100 things you are thankful for in groups of ten: people, foods, places, sounds. Write about one from the last group you filled. Angle: say which group filled fastest and which was slowest.
  • List 100 things you can see from your seat on the 100th day of school. Write about what you noticed only after number sixty. Angle: the first twenty are easy. The last twenty are where the looking starts.
  • List 100 things you have learned to do since you were born; walking counts. Write about the one you are proudest of. Angle: who taught you, and how long it took.
  • Make a list of 100 sounds, loud ones and quiet ones. Write about the quietest sound on your list. Angle: a page turning, snow, a cat changing its mind.
  • Start a list of 100 things to do before you are 100 years old. Write about number one and number one hundred. Angle: one for this year and one for a very long time from now.
  • With your class, list 100 words that describe your school. Write a paragraph that uses the ten best. Angle: no word twice; loud and noisy count as two.
  • Write a list poem with 100 in the title: 100 Things in My Desk, 100 Reasons to Stay Outside. Angle: ten lines is plenty. Let the title do the counting.
  • Write the first ten and the last ten of a list of 100 excuses for not finishing a list of 100. First line: One: my pencil broke. Two: my other pencil broke.

How it works

These 100th day of school writing prompts are built on the number itself, so they fit whatever date your school reaches day 100. Each has an angle or a first line under it.

Read the full guide

A 100th day writing prompt for each kind of writer

A storyteller takes If I had 100: pets, balloons, umbrellas. A daydreamer takes When I am 100 years old. Anyone who would rather look back takes 100 days smarter, which asks for proof: a word learned, a routine done 100 times, a letter from day 100 to day 1.

Lists that reach 100

Most of these fifteen prompts ask for a list of 100, then for writing about one line of it: the quietest sound, the oldest thing you have touched, the question you most want answered.

  • Write the number as 100 every time. Seeing it stack up down the page is part of the day.
  • On a list of 100, the lines worth writing about come late.

Questions and answers

What are good 100 days of school writing prompts?

Ones that use the number. A box arrives holding 100 of something nobody ordered. Day 37 was not special, so write why it still counts. Or take 100 steps from the classroom door and write where you end up.

What is a classic hundredth day of school writing prompt?

When I am 100 years old. Describe yourself at that age from the shoes up, or write the advice you would send back. If I had 100 dollars is the other classic, and the money list on this site has fifteen of those.

What 100th day writing prompt works for a whole class?

One of the lists, filled together and written about alone. List 100 words that describe your school together, then each writer uses the ten best in a paragraph. Or list 100 small kind things to do at school, do one, and write what happened.

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