Beacon Lesson Plan Library

Hooray for the 100th Day

Louise McGinnis


Counting to 100 boring? Have fun on the 100th Day of School with some fun ways to practice counting with the students.


The student counts orally to 100 or more.

The student groups objects in sets of 2 or more.


- Number line that represents the number of days that the students have been in school.
- Manipulatives for every two students to have 100 manipulatives. Examples: counting bears, blocks, links, cubes, buttons, pasta, or dried beans.
- [Miss Bindergarten Celebrates the 100th Day] written by Joseph Slate and Ashley Slate, August, 1998, New York, Dutton Childrenís Book (first choice)
- [100th Day of School] written by Angela Medaris, October, 1999, New York, Scholastic (alternate choice)
- Count to 100 Checklist (Associated File)


1. Download and copy the Count to 100 Checklist from the Associated File--one copy for each student.

2. Make sure that there is a number line posted on the wall with 100 on it.

3. Decorations for the number 100 (stickers, stars, etc.)

4. Preview the literature choice for the lesson.

5. Collect the containers of manipulatives so that each pair of students has 100 manipulatives.

6. Pair the students for the activity ahead of time.


1. Ask the students, how many days they have been in school? Is today special in some way?

2. Using the posted number line on the wall, count the number of days that the students have been in school. While counting the numbers on the number line, place a line between each group of 10 numbers. After the counting is finished go back and point out the groups of 10 that have been made on the number line. Make sure that you start with the first day.

3. Mark the 100th day on the number line with a special decoration, such as stars or something outstanding.

4. Still using the number line for reference count to 100 with the students. While counting the numbers have them clap on the 10s. After doing this then have them count just by 10s.

5. Read [Miss Bindergarten Celebrates the 100th Day] by Joseph Slate and Ashley Wolff.

6. After reading the book, the students and teacher discuss the different ways that Miss Bindergarten celebrated the 100th day in her class. Are you doing any of those same activities? Compare the activities in the book and those that you have been doing in your class.

7. Students work in pairs to count out 100 manipulatives that will be placed in groups of 10. Each student will take a turn counting the groups to make sure that the groups all have 10 manipulatives in each. Tell the class that this group of 10 represents the number 100.
Use the checklist as the tool for assessment of this activity. Feedback will be provided during the activity and during the assessment. This assessment will provide information needed for anecdotal records.


Use Count to 100 Checklist to evaluate the studentís ability to:
-count orally to 100 by 1s
-count orally to 100 by 10s
-students demonstrate their ability to group manipulatives in groups of 10

Feedback will be given to the students during the activity as they are working and also during the assessment.


Extended activities:
Students are asked to bring in 100 small items that are the same, in a paper or plastic bag. These items can be displayed in the classroom as the 100th Day Museum or 100th Day Show and Tell. The students are given a chance to tell about what they have brought in.
This is just an activity, not to be assessed.

The Count to 100 Checklist can also be used for this assessment.

Web Links

This is a great site for ideas and activities on more than just the 100th day of school.
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