Grade
4
Which One Doesn’t Belong? Seeing Shapes
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 4-sided polygon with no right angles. 2 sides are parallel. B. shows a 4-sided polygon with 1 right angle. No sides are parallel. C. shows a figure with 2 right angles and 2 parallel sides. The figure is not closed. D. shows a figure with 6 sides. All angles are right angles.](/sites/default/files/styles/large/public/activity-of-the-day/image1_41.png?itok=9JfLrrzi)
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