- Finding the greatest common factor
- Negative and bracket factors
- Two numbers from the area
- Reading the signs
- Common factors and dead ends
- Splitting the middle term
- Four terms and checking
- Spotting and factoring
- Common factors and sums
- Recognizing and factoring
- Is it a perfect square?
- Seeing a chunk as one thing
- A quadratic in disguise
- Choosing a method
- Unlocks after
- Opens up