Below is a list of links to some group applets.

• Investigate Fix(g) for symmetries of the square acting on a square divided into 16 small squares.
• Play with cosets.
• Cyclic groups.
• What are the symmetries of the square?
• What are quotient groups?
• Investigate homomorphisms.
• Actions of the orthogonal group.
• Find the orbits of a group action.
• Play with S4