- Finding the greatest common factor
- Pulling out the common factor
- Negatives, brackets, and checking
- Grouping four terms
- Re-pairing and going further
- Splitting the middle term
- Seeing a quadratic in a chunk
- Squares in disguise
- Recognizing and factoring cubes
- Coefficients, powers and common factors
- Choosing a factoring route
- When to stop, and checking
- Unlocks after
- Opens up