Have students compare the time it takes to melt 100 ice cubes at several different air temperatures -- inside,
outside, next to a heater, next to a fan -- and show the results in a chart or graph.
Ask kids to measure the amount of water in 100 melted ice cubes.
Have students make a list of 100 things that didn't exist 100 years ago.
Together with your class, write a 100-word introduction to a continuous story. Then ask 100 people to add to it.
Challenge students to make up 100 word or number problems with 100 in them.
Provide materials for kids to make 100 snowflakes.
Ask each student to list 100 words he or she can read.
Read One Hundred Is a Family, by Pam Munoz Ryan, to your students. Ask them to draw a picture of their
families.
Challenge kids to find out what happened on This
Day in History 100 years ago.
Help your students make a classroom quilt with 100 squares in it.
Have students count to 1,000 by 100s.
Together with students' families, create a cookbook of 100 favorite recipes.
Help students learn a game that children played 100 years ago.
Challenge kids to find out what a group of 100 parrots, 100 whales, 100 skunks, or 100 lions is called. They can
make a book of animal groups.
Ask each student to write 100 on a piece of drawing paper and incorporate the numeral into a drawing.
Have kids put 100 words in alphabetical order.
Invite someone 100 years old to visit the classroom.
Challenge kids to do 100 jumping jacks.
Ask students to find out who was president of the United States 100 years ago.
Challenge students to think of as many addition problems as they can with a sum of 100.
Have kids estimate which classroom items, or groups of items, weigh 100 pounds and check their estimates.
Can students predict 100 things that will be invented during the next 100 years?
Ask children to make as many words as possible using the letters in the words one hundred.
Time students as they jump rope 100 times.
Assign a number, from 1 to 26, to each letter of the alphabet. Does anyone's name add up to 100?
Ask kids to find the numeral 100 in today's newspaper. How many times does it appear?
Play a circle game. The first child begins, "I went to the zoo and I saw one giraffe." The second child continues,
"I went to the zoo and I saw one giraffe and two bears." Can students reach 100?
Ask children to guess which container -- of pennies, golf tees, jelly beans, thumbtacks, etc. -- has 100 in it.
As a class project, make a solar system mural with 100 stars.
Brainstorm with students a list of machines that can go faster than 100 miles per hour.
Have students research animals that migrate farther than 100 miles.
On separate index cards, write the numerals 1 through 100. Shuffle the cards, and have children put the numerals
in order.
Ask each child to bring to school one thing that represents 100 -- a $1 bill, a 100-watt lightbulb, a picture
of an athlete wearing number 100, and so on.
With your class, visit Zoom
Dinosaurs to learn which dinosaurs were 100 feet long, then make a dinosaur book.
Find out how many students, laid end to end, would equal 100 inches.
Ask each student to finish the sentence, "If I've told you once, I've told you 100 times. …"
Read to your class The 500 Hats of Bartholomew Cubbins, by Dr. Suess.
Challenge each child to complete a 100-piece puzzle.
Brainstorm with your class a list of 100 U.S. cities.
As a group, write 100 compound words.
Create a treasure hunt with 100 clues for your class to follow.
Challenge your class to read 100 books.
With your students, create a mural showing what school was like 100 years ago, what it's like today, and what
it will be like 100 years from now.
Ask each child to finish the sentence, "One hundred is an important number because. …"
Survey 100 students to find out their favorite 100th-day activity. Show the results in a chart.
And finally, every teacher's favorite 100th-day activity:
Sit perfectly still -- and perfectly quiet -- for 100 seconds with your whole class!
One Hundred
Days Project
The Teaching and Learning Center at the Joseph Lee School in Boston, Massachusetts, provides ideas for celebrating
the day, books to read, original 100th-day stories and poems, and the program for the school's 100th-day celebration.
100 Days
The site includes activity ideas and pictures of the celebration from Marshall Elementary School, in Lewisburg, Tennessee.