| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| why was homework originally invented | 0.48 | 0.1 | 4829 | 27 | 36 |
| why | 0.86 | 0.9 | 591 | 64 | 3 |
| was | 0.39 | 0.5 | 1065 | 7 | 3 |
| homework | 0.07 | 0.2 | 4237 | 29 | 8 |
| originally | 0.58 | 0.6 | 8500 | 29 | 10 |
| invented | 0.56 | 0.2 | 24 | 9 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| why was homework originally invented | 1.63 | 0.8 | 7814 | 98 |
