Celebrate numbers while helping students represent quantities in multiple ways with this hands-on numbers to 20 activity. Students choose or are assigned a number, represent it on a double ten frame, and identify the number that is one less and one more.

The finished activity creates a colorful birthday-themed display that works well for a number celebration, math review, or classroom bulletin board.

Students will practice:

• Representing numbers to 20
• Building numbers on ten frames
• Identifying one less and one more
• Developing number sense
• Connecting numerals to quantities

This activity is designed for kindergarten and first-grade students. Download, print, and use it as a whole-group math activity, independent project, or addition to your numbers to 20 unit.