A messenger pigeon flies 3 km in an hour.
How long will it take this pigeon to carry a letter to a person who lives 21 km away from the sender?
The pigeon sets out at 1:00 pm. When will it reach the addressee?
I have been trying to find ways for students to find errors. This problem was tricky for us. Some students said the pigeon would arrive at 6:00, some said 7:00 and others said 8:00.
I took a picture with my iPad of the work with students who got different answers. I projected the pictures on the SMART board and had students talk with their shoulder partner about where the student went wrong.
The discussions were amazing!
*(We have taken to calling word problems riddles. It is much more fun that way!)