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TeachersFirst 100th Day Activities:

50+ Ideas for the 100th Day of School

"There are lots of ways to note the 100th day of school. Here are fifty of our favorites. Many of these activities will challenge both lower and upper elementary students as they build better number sense for "100." Enjoy!1. Jump rope 100 times.

2. Build the tallest house of cards you can using 100 cards.

3. Flip a coin 100 times. Make a graph showing the number of heads and tails.

4. Roll a pair of dice 100 times. Create a chart showing how many times each number came up. Make a graph based on the chart.

5. Find someone who is at least 100 years old. Ask them what life was like when they were your age.

6. Find out which weighs more - 100 nickels or 100 quarters

7. Have everyone in your class try to throw a tennis ball 100 yards. Measure each throw. Calculate the average throw.

8. Count by 100s to 10,000

9. Recite multiplication facts up to 100 (10 x 10) with your eyes closed!

10. Guess how much 100 jelly beans weigh. Then weigh them and give a prize to the closest guess. Don't eat the jellybeans!

11. Separate 100 jellybeans by color. What percentage of the total is the most common color? What percentage of the total is the least common color? Don't eat the jellybeans!

12. Without using a calculator, figure out how many jellybeans each student would get if you divided 100 jellybeans equally among all the students. Don't eat the jellybeans.

13. Blindfold a student and have him/her pass out the proper number of jellybeans. What is the probability that the first jellybean handed out will be the most common color? (Think about this one!) EAT THE JELLYBEANS!!

14. Measure the height of your classroom ceiling. How many classrooms that size could you fit into a structure that was 100 feet tall?

15. Measure the space required for a student's desk and the aisle around it. How big would your classroom need to be to hold 100 desks with the same spacing?

16. Weigh the classroom dictionary. If postage costs $3.50 a pound, how much would it cost to mail 100 dictionaries?

17. Count backwards from 100 to 0 by sevens. See who can do it most quickly.

18. Count from 0 to 100 by fours. See who can do it most quickly.

19. Make a list of 100 words that end in "-ly"

20. Name 100 birds.

21. List 100 boys' names.

22. Name 100 American cities.

23. Name 100 cities NOT in America.

24. Estimate the length of a row of 100 nickels. Measure a row of 100 nickels to check your estimate.

25. Have everyone in the class close their eyes. Start a stopwatch and ask students to say "now" when they think 100 seconds has passed. Prizes to the winner!!

26. See if you can hold your breath for 100 seconds!

27. Figure out what a 100 second Super Bowl commercial would cost if broadcast time sells for $2.3 million per minute.

28. List 100 things that had not been invented 100 years ago.

29. See which student can walk the greatest distance (laps around the gym??) backwards in 100 seconds.

30. Try to do 100 sit-ups or push-ups!

31. Separate students into pairs standing 15' apart. See how many can toss a tennis ball back and forth 100 times without dropping it.

32. Collect 100 cans of food for a local food bank.

33. Write a story that is 100 words long.

34. Build a structure using 100 toothpicks or popsicle sticks.

35. Figure out the date that is 100 days after your birthday.

36. Use 100 seconds to make as many equations as possible that equal 100.

37. Bring in a recipe from home. Adjust the quantities to feed 100 people.

38. Write a story about what you would do with $100.

39. Write a story about what your community will be like in 100 years.

40. See if you can bounce a tennis ball on a tennis racquet 100 times.

41. Learn to say 100 in as many languages as possible.

42. Find a town or city that is 100 miles away.

43. Find the height of a stack of 100 pennies in centimeters.

44. Estimate how far 100 students would reach lying head-to-toe on the floor.

45. Figure out about how many days there are in 100 hours.

46. Estimate how much popcorn 100 kernels would make. Pop them to see whose estimate is closest.

47. Build a project using 100 Lego blocks.

48. Figure out how many of each denomination of bill would be required to total $100.

49. Estimate the cost of 100 gallons of root beer, bought in 2-liter bottles that cost $1.10 each.

50. Figure out about how big a patio you could make with 100 paving stones that are 2 feet by 3 feet."

Off to Costco to get that Jug of Jelly Bellies

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