100 Day ideas

With the 100th day of school coming up soon - Feb 6th if we don't have any snow days!  Schools/classes recognize this benchmark in small ways and with larger events.  A few simple ideas to celebrate this number: (Resources cited at the bottom where some of the ideas came from)

• Together with your students, learn to say one hundred in another language.
• Ask kids to count to 100 by ones, twos, fives, tens, twenties, twenty-fives, & fifties. Can you try a challenge and count by 7s? what about 18s?  What if you start at a different number? (Count by 5s, starting at 7?)
• Have children highlight the digit in the hundreds place in various sized numbers.
• Have students circle the digit in the hundredths place in 100 numbers.
• Find as many different combinations of coins to make $1.00
• Challenge children to locate on a map the cities that are 100 miles away from yours.
• With your students, send a postcard to a school in some of the cities 100 miles away from yours
• 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.
• Challenge students to perform 100 acts of kindness.
• Have students research animals that migrate farther than 100 miles.
• Get a catalogue or newspaper ad, or have students visit a store Web site and ask them to spend a $100. Who can come closest without going over their $100? Can someone spend exactly a dollar? Older students studying decimals and percents can work with the sales tax.
• Let A=$1, B=$2, C=$3, and so on. Can students find words that are equal to $100? How close can the students get? What do they notice about the letters in the words that are close to $100 or exactly a $100? (Grouper is a $100 word) What words do they pick to start with, why?
• Ask students: If your grandmother is 100 years old, how many days, weeks, hours, seconds, and minutes old is she?
• Exploring Math With Jellybeans Four activities in estimation, place value, graphing, probability for grades 3-12.
• Create a list of 100 books you have already read, perhaps in order of preference. Or take a poll of your class’s or school’s students to create a list of “100 Great Books” to choose from to form book clubs.
• Convert the percentages in United States Census data to present facts about Americans by showing how many people out of 100 have specific levels of education, income and so on.
• Solve the Puzzle of 100 Hats.
• Create a list of 100 inventions that changed the world. Which do you think should be No. 1? Why?
• Revisit Usain Bolt’s world record in the 100-meter sprint in the 2008 Olympics. Then go to the track and run 100 meters.

Have fun!

• Education World 100 day activities:  https://www.educationworld.com/a_lesson/lesson/lesson149.shtml
• NEA.org 100 day activities:  http://www.nea.org/tools/lessons/100th-day-of-school.html
• NYTimes 100 day activities: https://learning.blogs.nytimes.com/2011/01/28/100-ways-to-celebrate-the-100th-day-of-school-with-the-new-york-times/
• Read Write Think 100 day links/activities:  http://www.readwritethink.org/classroom-resources/calendar-activities/celebrate-100th-school-20631.html