Four quick summaries of the problems that students worked on, and the feedback that I gave each group the next day. A snapshot of the group's product before and after feedback.
Case 1: Handshakes and Diagonals
- How many handshakes would it take for us to all shake hands?
- How many diagonals does a square have? A pentagon? A hexagon? Find a relationship between the number of sides and the number of diagonals.
Case 2: Grids and Squares
How many squares can you find on this square grid? How about on this array of dots?
Case 3: Nets of Cubes
How many nets does a cube have?
Case 4: Cross-sections of Cubes
Here's a list of shapes. Can these shapes be the cross-section of a cube?
- Were all of these pieces of feedback equally effective, based on the whiteboards alone?
- Each of these pieces of feedback were printed out and handed to a group. Would oral feedback have been better here?
- Each of these pieces of feedback ended with a question. Would a direct suggestion have been more effective here?