Grade
1

Which One Doesn’t Belong? Shapes in My Neighborhood

Look at this set of four pictures. Decide which one doesn’t belong with the other three.
Use math words to describe your thinking. There are many ways to think about each one!

A. shows a building made with 3 stacked cubes. The top and middle floors each have a window. The bottom floor has a door. B. shows a building made with a triangular prism on top of a rectangular prism. The rectangular part has 2 windows and a door. C. shows a building made with 2 stacked cylinders. The top cylinder is short to make a roof. The bottom cylinder has two windows and a door. D. shows a building made with 2 stacked rectangles. The top floor has 2 windows. The bottom floor has a door.

Challenge

Find reasons why each of the pictures might not belong with the other three.

Share

Explain your thinking to someone else. Do they have different reasons why one doesn't belong?

Printable Version

Google doc for printing and copying

Seesaw Version

Activity for the Seesaw platform

Reference for Educators

Sample problems and solutions