Feb 8

• Do the cut (via squeeze)
• Cube
• Circular road; seeing permutations: reversed if seen from opposite ends. Not always so!
• Two hens lay two eggs every two days. How many eggs six hens will lay after six days?
• Vectors...

Homework:

1. Four legos are hiding under a sheet of paper:

Here is what you see from the left (green arrow):

and here is what you see from the right (red arrow):

Can you determine how there are positioned under the sheet?

2. Two of these links are the same, and one is different. Which one? (You cannot cut the loops!)