home elementary second third fourth comparisons math art book

Addition Activity

addition activity


  • 12" x 18" construction paper, with guide dots pre-punched by the teacher (1 per student)

  • Array cutout sheets, page 92 (1 per student)

  • Label sheets, page 93 (1 per student)

  • Scissors (1 per student)

  • Crayons (1 box per student)

  • Glue sticks (1 per student)

  • The completed project prepared by the teacher before the lesson


The goal of this project is to help students better understand addition by having them deconstruct the number 999 into addends* of their choice. It also gives them practice in reading base-10 blocks.

Prior to the day of the project, the teacher must prepare a piece of 12" x 18" construction paper for each student. Use the method discussed at the beginning of the Money Activity (page 5) to simultaneously mark multiple pieces of construction paper directly in the center with a single guide dot.

addition activity 2

Get the entire lesson!
activity book

* "Addends" are the numbers in an addition problem that are to be added together. For instance, in the problem 1 + 2 = 3 the numbers 1 "sum."