Mystery Number Skype

On Friday morning we participated in a very exciting math activity. We skyped with a second grade class from Hoover, Alabama. Our skyping session was a Mystery Number Skype. Each class had to guess a three digit number pre-determined by each class. The students from each class took turns asking yes and no questions to figure out the digit in the hundreds, tens, and ones place. They then had to collaborate in their groups to figure out the correct number. This activity incorporated various math skills such as odd and even, greater than and less than, rounding, and place value as well as critical thinking and skills. The students in 2K did very well for their first time with this activity. We can't wait to try this activity again.